Self Leveling Suspension
 

Hi!
I have searched on the forums about Self Leveling Suspension , and i founded some help but not every thing i need.
My question is my X don´t have level button that make the ride lower or higher. So... about 20 minutes ago when i was out with the car, i got a message on the cluster : Selflevel susp. inact , and when i turned the car of then on , it disappeared is that normal ? or can i just forgot about what have happened

type in 'Self Leveling Suspension' in the search box in the bottom left had corner of this page and you might find some answers...

Hey, I just had the same issue with my 2005 X5 (4.4).

I heard that the issue could be due to a couple things. The ride height controller is broken, the controller needs to be reprogrammed, or what is most likely, the sensor that indicates ride height is broken and needs to be replaced. This is what was wrong with mine and the rear end was bottomed out in the lowest position until I got it fixed. Be advised, if you drive the car around while it is low like this you Will burn up the inside of your tires. The dealer also replaced a fuse after they replaced the sensor. It was a 30 Amp fuse for the pump I think.

Good luck with the issue. If you get this alert on the display and it doesn't go away as usual then the suspension will probably bottom out on you until it is fixed. You hould have it fixed soon after.

Save yourself a few bucks and replace the sensor yourself if it is diagnosed as the problem.

Email me if you have got more questions, I don't get to sign on here much. [email protected]

sorry, i don't understand, his does not have the self leveling system, so how his have sensors?

I had the same problem the light came on and then off after i turned the truck off and on again. I have an appointment booked for wednesday and will get it checked out. The X also looks a little bit lower on the right rear. Or maybe it is just me?

That is what i am asking for . I don´t have any button like this
http://img135.imageshack.us/img135/6...ontrol2nb1.jpg

? Dose it matter if i have the button or not if the message come just ones?
Bmwlover : Keep me updated , after the look at your X

it's two different things... self leveling suspension is standard on the 4.4, 4.6, and 4.8. If you have a 3.0 it's an option. Self-leveling only works on the rear axle and is notorious for false messages to the ECU. It has a timing issue that sometimes triggers the idiot message if the compressor runs to long.

Adam

Oh .. thank you !
now i can drive without thinking about it --

Mahmud,
You do have self leveling suspension. The picture is for Adjustable ride height and is standard is most 4.6 and 4.8 vehicles. I had the same message on my truck a few months back and it was because mine had a slow leak. Take it to the dealership or an independent and have them run the code. It does not stop your from driving the car but my back wheels dropped down a little which made the ride really bumpy in my truck.

Good luck!

Thank you for all help! now i get it!
I will call my dealer and ask about that .. and at the same time about my BT

I have that same message right now...

The car is a bit lower on the rear driver's side...just went to the dealer to ask a question...and the mechanic has told me that as long as there is no fault code it should not be a big deal. I dont have a fault code...but i will keep an eye on it.

I will check some fuses, jack the car up on that side, see maybe it changes...

BTW i have a '01 4.4

I had this message pop up one time as well but it wasn't a big deal...I am pretty sure it was because I had some cargo in the back of the car and immediately turned my car on and whipped around a 90 degree turn at about 30 mph without ever giving it a chance to level.

For the rear-axle only SLS (no adj. ride height), most of the time the "susp. inact." light is due to a faulty self-levelling sensor(s). The light usually comes on when you're parked on s steep incline/decline, then goes away once you start driving on a level surface, but if it stays lit you should get it checked out, or just replace them both like I did. The sensor arms get gummed up with road grime/mud/dirt/water and will eventually seize up or stiffen up.
BTW the sensors are about $100 each, and only available from the dealer.

Oops
 

Hey Bimmer360,

That was my mistake. I have a 2000 X5 with the 4.4 liter V8. I guess I wish I had a 2005 :-) My typos are my sub-conscience speaking

Good luck with your issue Mahmud

sensors
 

Sorry for bumping an old thread, but i was trying to change the RR sensor and i was wondering what the easiest way to remove it. Remove #5 or 2x #4?

http://i31.tinypic.com/295v1g8.png

No wheel
 

Hey,

I took mine to the dealer like a big sissy and they did all of the work. Looking back I think I should have done it myself after they told me it was a sensor. I think removing the rear wheel on the driver's side will make easier access to the sensor. If not then you will have to lift the car pretty high to get to it.
I really don't think they removed a lot on my car to do the work. good luck.
If you really need it I can try and lookup the steps on my TIS & ETK software but I'm not near it now.

DrumAdrian

Yepp, another victim of suspension. Welcome to our club of troubles and problems :) Wish you good luck!!!

Thanks, yeh i got the rear wheel off, but it seems impossible to access the #4 screws while the sensor is installed. I think the only way is by undoing #5 but im not sure if the other screw holding it in will be a factor.

Got it removed today.

#1. Remove the regulator rod #11 by unscrewing 2x #5.
#2. Take off #5 with a 10mm wrench and then the plate comes off with the sensor.
#3. Remove 2x #4 screws, one of mine was siezed and snapped, so i gotta order a new locking plate.

Will update when the new locking plate comes in and the sensor is back installed.

Awesome
 

Good to hear you got it off man. Saving some loot by doin the work yourself is always good! :thumbup:

Changed the sensor, bracket, and arm. A lot easier to install then to remove for sure. Light is still on, but it might have to get reset, i will go see my indy mech tomorrow and get it reset.

Will update.

I give up @. got the code read and it still says right rear level sensor. I dont understand at all.

Maybe the wirring harness between the module and sensor...
I'l lhave mine changed today. The dealer told me module performs auto test after each key cycle. Your message should have disapeared after installation...
Will keep you posted.

I noticed your from Montreal, are there good bmw dealers there? Im from Ottawa and we only have Ottos and Elite, but i dont know anyone there.

Hi,

There are 5 BMW dealers around Montreal. Not tested them all yet but I'm very pleased with "Parc Avenue" in Borssard eventhough they are not close to my place, not even on my way to work. There is a new dealership that opened few months ago. Their agenda is not booked 3 months in advance yet... convenient! :thumbup:
I have a BMW specialist I really trust in my suburb (Beaconsfield, West Island). He is not "certified" but it does not seem to influence customers as I saw a brand new 2008 M5 there last month :wow: . Rates are half the price of BMW!!
PM me for contact info.

Also know a more "underground" BMW mechanic with all equipement (including DIS). He used to work for a dealer.

I bought the level sensor on my X last sunday and was also disapointed to see the "Selflevel Susp Inac." full time with left and right blinking arrows. message. Guess what. IT DISAPEARED TODAY

Decided to dissect my faulty level sensor. It was full of water and rust...

http://lh3.ggpht.com/jmagne/SDyB577z...0/DSCN7083.JPG

http://lh4.ggpht.com/jmagne/SDyB5L7z...0/DSCN7082.JPG

http://lh6.ggpht.com/jmagne/SDyB6r7z...0/DSCN7086.JPG

Now I understand...

BTW, prior opening it, I noticed the part# was different from the one I bought at dealer :
1 093 698 (build 25.08.04) for the old one
6 778 812 for the new one

Yeh it looks pretty rough. My arm would not spin freely anymore. But it is still giving me the self level error and the code is coming up with the right sensor. i checked the pins and they are not rusted so im not sure :/

Part number 6 778 812 superceeds all the older part numbers which is why you got that one, which is the same one i ordered.

I might be interested in that bmw info, i'll let you know. ty.

sorry if this is long. But, airlevel just plain sux.
 

About a month ago, I had a slight knocking sound from the front left. Got under car to see if anything was loose. Noticed that both front outside CV boots were very cracked and leaking. Called a number of dealers in the area. The closest being about a 3 hour round trip. No CPO coverage for this. So, having done this many times in other cars, and not trusting any local "muffler shop" to do it, I set about taking care of this. CV joints still in great shape, so just cleaned and repacked new grease and new inside and outside boots. Job well done. So, back to trying to figure out the knocking sound. Still cant find anything, sound getting louder. Now notice the front left now riding lower than the other side. Handling now isnt right. After a couple of days of this, driving myself crazy with it. The dreaded "selflevel inactive" light now comes on, and doesnt go away.

Ok, now its time to do the trip to the Stealer. Cancel a good number of patients to do this. Now they are ticked at me. Cant blame them. BMW service "Tech" tell me that the sensor was installed incorrectly when the axles were replaced. Ok, I tell them the axles were not replaced. Original part stickers still on them. Only the boots were replaced. And, BTW, the sensor was never touched. If it was installed incorrectly it was done at the dealer where I purchased the thing. After lots of discussion, still dont get a descent explanation on why the sensor is incorrectly installed, when I never touched it. So, ok. Giving the benefit of doubt, and burning daylight, I told them to do what they have to do, I will pay for it. Dinged 500 bucks later for just readjusting the ride height sensors, and reprograming computer, sensors in good shape. Since its in, also get level II service along with some door ding removal. Total 1600 bucks.

After ten days same knocking noise is coming back, and getting louder. Ride height now lower on the left front again, handling poorly again. But now, no dreaded "selflevel inactive" light for now anyway.

Ticked that nobody believed me that I never touched the sensor, ticked that I spent 500 bucks for them to readjust the sensors, and I am in the same place I was before. Also ticked that after two days, my Email to the general manager at H------k BMW has not gotten back to me on this. My wife's GERMAN made 330ci with 90k on it has never given us problem one. As fun as the 4.8is is to drive when its right, I dont think this is over come by the problems.

Alright I have the same problem now but I wanted to get some input. Every single pixel on my dash is completely burned out so I'm not seeing the Self Leveling Suspension error message, but I walked out to my car and the left rear was dumped. However as soon as I start my car, it raises back up. (this has happened 3 times this week)
I'm HOPING it's also just the sensor like yours but has anyone experienced any problems with the actual airbag/strut being messed up or needing replacement?

I'm going to give the sensor a shot since it's cheap, but another question I have is, where is the pump located? Or what fills the shocks with air? Is it an air suspension? What controls the ride height/leveling? I just want to check and see if there are any leaks in the lines?

Oh also, someone mentioned a fuse. Where can I look for the fuse that control this?

Thanks guys.

Sorry for not updating this thread. I changed the left side (same parts) and the error code cleared by itself after a short drive, havn't seen it on since! Saved a lot of $ as well :)

From former lowrider to new SoCal lowrida
 

Hey ttzcar,

I had this issue and I was low-ridin in my car for a couple weeks. When I had this problem it turned out to just be the sensor. The sensor is cheap to replace but I don't know if it will show up as a fault (with an ODB II system) when you have the problem. The dealer diagnosed my problem. Your symptom of the car bottoming out and then pumping back up is what I saw too so I hope it is that simple. If you buy the new sensor it is easy to replace and I don't even think they took off my wheel to replace it.

The pump for the air suspension is under the passenger bench and/or rear hatch floor. There is a lot of info in a .pdf that i have so I'll try to send it too you since it's too large to attach to this post. Just shoot me an email at [email protected]

My dash is just about pixel'd out so I feel ya on that. The bags (air ballasts) for the suspension are supposed to be high quality so I would suspect them last as the problem. I feel that some of the Land Rover influence on our X5s made it suck but overall it's still the meanest machine i can find.

Aside from the sensor, I imagine it could be the symptom of other problems on the car but you can search this forum for more on that.

Good luck,

Adrian

P.S. I totally love So Cal and I am def gonna live there in the future. Enjoy the sunshine!....we're covered in snow over here in the Northeast. LoL

I had the same problem and it was justa bad sensor. Dont stare too long at the backend..your mind will play tricks on you and you will be convinced it is sitting lower. Have the sensors checked out - may just be loose or need replaced.

Self Leveling Suspension
 

Well, here's my story! two weeks ago, I was having the same following message(Self Leveling Suspension) that keep appearing on my dash boad,
It was held there on every start-up. And one morning I wake-up and found the rear vehicle is sooo low than normal high where you couldn't even see the top tire because it goes all the way up inside.

2)First step, I searched on this forum regarding this particular issue
and found out there is another fuses locations located in the rear vehicle
on the right side which I already knew. And I tested all my fuses but last one which is a 30.amp. turned out to be dead (it's blown out) I just replaced it with the same ampere fuse (30) And after 45 mnts to 1hr. the rear vehicle has lifted back up to normal high position.

Thankx Goddddd I fixed it!!!

Note: Even after the new fuse has been replaced, you will still notice the(Self level suspension Inact) message appears on your dash board N'till the rear vehicle has been completely lifted-up. After 1hr. turn the engine back on and the message will disappearrrrrrrrrrrrrrrr.

Very cool
 

I'm glad you got that fixed with the fuse. Troubleshooting BMW electronics can be scary if you don't have a really good scanner tool or BMW's know it all diagnostic software.

Cheers,

Adrian

Now I keep having self level susp. inact on my dash board too, but my rear vehicle is not lower, is in the normal position however this following message keeps poping up on every start-up now! Before, it was a fuse that caused the back lower and every since I replaced the fuse, after 45mntes my rear vehicle went back to normal position
and the message were disappeared. But now come back again with no lower back and the fuse is ok.

How doest the sensors look like( for the rear level susp. inact.) is there any picture that can show the back where it's located...

If your X still has to pump up the back every morning then you might have a leak in the air spring/shock. If you put in the fuse and it lifted the back up - it should stay that way in the morning. Maybe I misunderstood you.

No! my rear vehicle remains still in the normal heigh position every since I replaced the 30amp. fuse, it just the ignoring message( self level susp inact) that keeps appearing on my dashboard on every start-up now.

Maybe the fault just needs to be cleared? :dunno:

Sensor spotting
 

Here are some pictures of the sensors. There are 2 pictures of the back and 2 pictures of the front. The sensors on my car are driver-side front and passenger-side rear wheels. This is from a 4.8is but i think later model E53 X5s have the same setup and it only differs for earlier X5 (99-02) The other picture is from RealOEM.com Online BMW Parts Catalog It is for earlier X5s in the rear.

I hope this helps,

Adrian

I had a similar problem regarding my rear air suspension . I drive an 02 X5 3.0d euro version. I already changed the left rear air bag and thought it would solve the problem. However, I observed after one day overnight the rear left side was slowly sinking ( same air bag I replaced). Based on my research about this topic, I guess my next step is to check the sensors and fuse for possible replacement ???

If you can't get a good diagnosis from a dealer or shop:

1) I would assume that it wouldn't be the fuse because if its the fuse then the airbag would not get filled at anytime, right? Its either working or not. It worth checking though, just in case, since its an easy check.

2) Since you replaced the airbag its safe assumption there's no leak.

3) Sensors ... hmm not sure how to troubleshoot this as the airbag does fill-up initially and when the X is being operated. Guess if these are cheap you can try and replace them. I guess this would be the next logical step. Maybe there's an adjustment that needs to be done, like ensuring its in the proper orientation.

4) Compressor I assume is good as it pumps up.

5) Maybe its a module. You can read up on the air suspensions more in these PDFs:

RapidShare: 1-CLICK Web hosting - Easy Filehosting

RapidShare: 1-CLICK Web hosting - Easy Filehosting

Can someone please tell me why I can't change the Editor modes? I can't change the description for the links. :dunno:

http://images.carsforsale.com/280990...1LH17960_3.jpg
http://images.carsforsale.com/280990...1LH17960_2.jpg
HERE'S MY BABY PICTURES!
I ALSO WANT TO THANK YOU ADRIAN FOR TAKING YOUR TIME TO SEARCH FOR THOSE SENSORS PICTURES AND POSTED ON THE FORUM FOR ME AS EVERYONE CAN ALSO CAN SEE IT. HOWEVER I USUALLY SEE THOSE PARTS AS I GET UNDER THE VEHICLE, BUT I NEVER THOUGHT THEY WERE SOME KIND OF SENSOR SPECIFICALY MADE FOR (SELF LEVEL SUSP. ISSUE.

IF THIS IS THE CASE FOR MY(SELF LEVEL SUSP INACT) THAT KEEPS APPEARING ON MY DASHBOARD THAN I THINK IT WOULD BE PRETTY MUCH EASIER FOR ME TO REPLACE AND AFFORDABLE AS WELL

ONCE AGAIN!
THANKS ADRIAN!!!

Can we do a sensor test by disconnecting the sensor arm and change the angle? I was thinking is we can make the EHC control module to do certain things when changing the angle.
For example, if one of the sensor is bad I would think it will send a too low or too high voltage to the EHC, but how EHC knows that is not the right info. Should I assume that the EHC measures the pressure in the air springs?
So, what should we expect if we "lower" the sensor arm? Would that tell to the EHC that it needs to pump more air? until when?
What is going to happen if we "lift" the sensor arm?
What is going to happen when you disconnect the sensor? I read somewhere that the EHC will pump air to the max. This will not help. to diagnose.

I am looking for a combination of the above so if we know what to expect we might be able to locate the faulty sensor or the control module.

Just an update on the status of my X5 at the indie shop.


My car has been at the shop for one week now trying to recalibrate my rear self leveling suspension. The guy told me that the level is still a little uneven on the left rear side of the car. They are trying to diagnose and make other adjustments in the camber,alignment and checking of sensors....left rear side lowers a little bit after 2-3 days overnight ....Indie shop measures height level first thing in the morning to check if there is any decrease in height..

I am getting a little frustrated already....any of you guys experienced similar problems...:dunno:

However my friend! I have also this following message going back and forth in my dashboard; and sometime wake-up in the morning specially when my car has not been started for 24hrs, but seems to be lower than normal @ the right rear side.
It happened yesterday morning when I started the engine, while standing outside from the passenger door, less than 30s after starting the engine I can feel and notice the rear vehicle slightly lifting-up by itself.

One day, both side were lower than normal where you could'n even drive it without getting hite on top of your head while moving. Amazingly! cause of this forum I found out there is a 30 amp. fuse located in the back passenger side, and it was blown out. As soon I replaced it, after 45 mntes to 1hr. I noticed the entire rear vehicle has been lifted-up by itself.

This vehicles (BMW X5) they all seems to be very frustrated with problems issues time of time... I wonder why they're so cheap compare to (LEXUS RX350 with the same year as the (BMW X5 that should have been way more expensive than Lexus.

I'm not even going to worry about this ignoring message, as long my rear vehicle is lifted-up to normal height position.

looks like basics aren't good after all :(

james does your ride height correct itself after some time? or its permanently lower on one side?

you mentioned after 2 to 3 days overnight then it lowers, those 2 to 3 days was the car used?

either the bag they fitted has a small puncture or they did not install it properly.

do the auto level test by putting a lot of stuff, it should auto adjust itself

I got my faulty sensor identified by a indy shop using Autologic. Carsoft does not read the EHM module and I couldn't figure out on my own how to do it. So, I replaced my faulty sensor and after 2 min of driving the error was gone.
I was looking for a procedure to identify the faulty sensor without the need of a GT1 or these specialized tools. Here is what I found, too late for me but it might help some of you that try to diagnose the self level inactive problems.

Quote:
Originally Posted by Kurt Leman
Originally Posted by Kurt Lehman on the bmwe34m5 yahoo group

"RE: [M5] Help ... "Suspn Leveling" warning ...


Let me de-mystify the SLS sensor for you. Despite all the info to the contrary, it's just a switch. In typical German fashion, a fancy switch with non-contact sensing (so it has an easy-to-define "on" band, and won't wear out under constant high-frequency suspension motions), but it's still just a switch output (technically an open-collector transistor switch output.)

The operation is very simple: Centered, the output is grounded. Too high or
too low (spec'd as suspension height +/- 10mm) and the output is open, pulled "high" (near 12V) by the instrument cluster input. You can easily check this circuit and sensor operation as follows:

1. The sensor passes through a 21-pin connector next to the battery under the rear seat. This is an easy place to probe. Looking at the back of the
connector where the wires coming out of the rear floor enter the connector, the 3 wires in the center row of pins on one end are the sensor wires, pins 12, 13, and 14. Pin 12 (three from the end of the middle row) is a black wire with brown stripe and yellow dashes -- this is the sensor output. The next pin (13) is the ground, and the end wire in the middle row (14) is +12V power. You can easily probe with a DVM in the back of the connector.

2. Turn the key to the first "on" position. You should see 11-12V on pin 12
with respect to ground, and 0V on pin 14.

3. Turn key one more click to the "run" position.
STOCK: With car at nominal height, you should now see ~0V on pin 12 (~.35V) and +12V on pin 14.

LOWERED: If your car is lowered you will see voltage on pin 12 still. -A/E

4. STOCK: Jack up the right rear of the car, and at some large height, the output on pin 12 will rise suddenly to near 12V again.

LOWERED: Jack up the differential carefully by an inch or two to simulate "stock" ride height, you will notice that the voltage on 12 has now dropped to ~0V. -A/E

5. STOCK: Lowering the jack should bring pin 12 back "low". If you load the car enough, you can trip the sensor to "high" state again. You can also undo the one 10mm bolt holding the sensor on (leave linkage attached) and turn the sensor to see the above readings.

LOWERED: Lowering the jack will cause pin 12 to go back high again. -A/E


6. Cars with no SLS simply ground pin 12 to defeat the warning. You can do the same thing if you want to ignore the message if your sensor is bad and you don't want to replace it, or if your car is lowered with an SLS delete kit. You can simply place a jumper wire between the wires leading to pins 12 and 13.-A/E



http://www.unitedbimmer.com/forums/e...el-delete.html

Latest update........

I have parked my X for 3 nights to check if rear air suspension of left rear side will hold at normal height........result is FAILED !!!! :(

Problem of left rear side is till collapasing after several days in the garage...Indie shop cannot resolve problem...Once you unlock the door the height goes back up to normal ....well, I have to live with it until you guys can give me some possible solutions...:dunno:

definitely a leak in the system. either lines from compressor to the air spring or the new air spring was not installed properly or it wasn't new at all.

SELF LEVEL SUSPENSION LOWER EVERY 24HRS
 

I'M EXPERIENCING THE SAME ISSUE TOO, AND AS SOON I START THE CAR, YOU CAN NOTICE AND FEEL THE REAR VEHICLE LIFTING BACK-UP TO NORMAL POSITION SLIGHTLY. BUT HONESTLY! IT DIDN'T BATTER ME TO MUCH AS LONG AS THE REAR GETS BACK TO IT'S NORMAL HEIGHTS.

FOR ME, IT SEEMS LIKE A BEGINNING OF FAILLURE OR (A TIRED PART) THAT START TO RAN OUT FROM THE SUSPENSION LEVEL SYSTEM.

[01 X5 4.4i E53/M62 ENGINE TYPE [/BLUE COLOR].

if its a leak in the system, the compressor will keep on running to maintain the height of the vehicle, that will lead to a premature failure on your compressor. that's automatically more money if you need to replace the compressor

Hi blueagle,

If you're still having problems with the rear suspension, maybe some of what I experienced may help.

I recently had my left side (both front and rear) go down but not always. The front more so than the rear. Ended up being a leaky front air strut. I replaced both since I'm almost to 60K miles. I had also taken care of other front suspension problems so that it did not make sense to me to not replace both fronts. On the rear, they said they checked all the other three and seemed to hold pressure so they felt that I had no leaks.

Afterward initial replacement of the front struts, I had two issues. One was the X was not level and the other was the left rear still went down sometimes. I think it happened twice in a span of a week.

All four corners were at different heights (differences being from 1/8" to 1/2"). However, weasel said it's common to have slight differences. The shop I use don't have a GT1 and are not experienced with it. So, they allowed me to adjust the ride height in the shop since the X was sitting on its tires. Afterwards, they let me have it for a week to make sure things were all okay. When I returned to the shop for wheel alignment they adjusted the sensors (by adjusting the holder height) to get it even. They did it without telling me prior and I just left it as is.

Later when I got it home, I decided to play around with the GT1 and found some things I had heard about but never investigated further prior. One was you can set the suspension "zero point" through Control Module Functions. This is basically setting the default ride level height.

I had done a write-up about ride level adjustment through Service Functions using the GT1 but now I realize that my understanding of it was incomplete. That way is you measure the existing ride height at each wheel and the GT1 compensates compared to the zero point setting. What I discovered in the Control Module Functions is actually setting the zero point. Basically you adjust the ride height to what you want then push a button to remember that as your default ride height.

The other things I found under Control Module Functions was you can adjust independently the ride heights incrementally up or down. The complete front axle or the rear axle can also be adjusted incrementally at a push of a button. The exact dimension for each increment I don't have yet but its about 3/16" to 1/4".

I experimented with my default ride height (zero point) being lower than stock (as before for me) and higher than stock (like when you adjust for more clearance). I wanted to see if I could feel the handling differences. I currently have it higher than stock because I just haven't had time to play around some more. Probably I'll adjust it lower than stock again but higher than my prior setting.

Since that time, I have not had the rear left go down at all. As a matter of fact, since after the shop adjusted the sensors, I have not had the left rear go down.

I don't know, what if anything, resolved the left rear from going down. I'm just relaying my experience and maybe your shop can glean something. Maybe try setting your default ride height to higher or lower temporarily and see if that changes your results. Maybe adjusting the sensor heights ...

Good luck and would definitely be interested in your findings. :thumbup:

What is this magic thing???
 

Hi TwinsPoppa,

What is this GT1 and how to I get one to adjust my ride height?

Also, I am having this "pump it up" in the morning issue but I haven't had time to really troubleshoot it lately. Also, did they just adjust the position of the sensor to adjust ride height? I didn't know this was possible.

Awesome post dude. Thanks for sharing all that info. :thumbup:

Adrian

Hi Adrian,

GT1 is a system, consisting of hardware & software, used by BMW dealerships to diagnose, code/program the vehicles. This system is being phased out or has already been by BMW.

Some people/companies sell online and through ebay what I refer to as "laptop GT1". This is basically the GT1 software running on a laptop instead of the proprietary GT1 hardware. They cloned the system but it does not have 100% functionality of the original. For example, I don't think it supports all the different attachments like the original GT1 (like test probes or doesn't support wireless attachments).

Here's a link to some of mine and others experience:
http://www.xoutpost.com/bmw-sav-foru...aptop-gt1.html

Cost varies but its around $700 - $1000 for the complete system. The actual cost of the GT1 that the dealers use I heard run in the tens of thousands originally.

The value of these latop GT1s can be realized more by actual mechanics who will put the effort into learning the system. For myself, its enough for me to know its just a hobby.

Yes, they adjusted the sensor height to level the X. They did it as an un-asked favor, as at the time I didn't know how to use the GT1 to make the incremental adjustments, and they thought I'd want them to do it. I didn't find out until after they did it. Actually, I preferred they didn't do that. I was fairly confident there was a way using the GT1 but, at the time, didn't know exactly how.

I don't believe that its a big deal or that it may lead to problems. So, I didn't make them re-adjust. They were just trying to help me out free of charge. Bottom line, though, is the proper way to adjust ride height level is through the use of a GT1 or some equivalent - not adjusting the sensors themselves.

If you end up getting a laptop GT1, look at the link and search here and on the web. Lots of info. and will try to answer your questions as best as I can. Good luck! :thumbup:

Cool
 

Thanks,

I've seen those before but I didn't remember it by the name GT1. I bought a hacked version of carsoft and i use that for checking out certain things on the car.

I think the price of the real software is ridiculous and the eBay version is a deal in comparison.....but still pricey.

I think I may just have it checked if I bring my X5 to the dealer for something later. I get the feeling that my A.C. compressor is going out or maybe I'm just low on refrigerant. I hear a sound when I turn on the AC so i need to check it out. I just really really don't like going to the dealer. Those smug little customer service reps are annoying and separate me from my car and the knowledgeable tech working on it. That's all I care about. The car and the drive, NOT the coffee and muffins in the waiting area.

Thanks again dude,

Adrian
:cool:

On the sound from the A/C, might want to search about replacing the First Stage Resistor or something like that. Plenty of threads on that and might be worth a quick search.

Cya around .. Jose

I definitely will. Thanks for the tip

......also, I didn't think other folks were up this late. I was just out in Philly showing up a Mini Cooper on the midnight freeway. It's hard work makin' BMW look good everywhere I go. LoL

Adrian

HI ALL
MY DRIVER"S DOOR WINDOW JUST GO DOWN ,BUT DO NOT GO UP AGAIN WHEN I SELECT
IT ON THE SWITCH PLEASE HELP!!

Latest update :

Changed air suspension hoses on rear left side of air bag. Unfortunately, left side still collapses after 2 days sitting in the garage. Already installed new air bag on left side. Getting a bit frustrated after 2 months of trying to solve air suspension problem......any suggestions ??? :dunno:

Not too sure
 

I am not sure what could be causing this issue for you. I have a similar problem but I drive often and don't have to worry about it too much.

My only advice would be to really read around this forum to find a fix someone else posted or consider going to the stealer to get a diagnosis and fix it yourself.

Good luck,

Adrian

Either something is loose or the hose and/or bag are defective. Did you take any pics of the installation? Some pics would help us see. In any case try spraying the air bag and hose with soapy water, if you see any bubbles forming then you have a pin hole leak. Also check the air hoses under the spare tire where the air pump is located, one of those hoses could be broken as well.

If the lines are good and not leaking at any connections, and the bag is good, already replaced... it could possibly be the valve block/solenoids not seating properly and letting air past. The valve block is in the hump with the air pump, worth checking.

this warning just came on today, i have searched other forums and they said to check fuse and it looks good. i never pushed the descent button and i was on a steep hill so was curious and thats when the light came on.. i cant raise of lower the car any more, the car is completely level with no sagging on any side......any clues. the funny thing is im bringing it to the dealer on tuesday for a very annoying squeek which i thought was coming from the rear suspension but figured it was just some bushings or something. this sounds expensive. another question is i was going to get the extended warranty but does anyone know if the compressor is covered or whatever it may be?

Self level suspension inactive
 

My (self level suspension inactive message) did not appear as often now, however I suspected on my dashboard only specially after my car been sitting
in my driveway for 2 / 3 days without starting the engine, which cause the rear vehicle to be lower a little bit. And this also cause the (self leveling) sensor to activate the message on the dashboard. But like you said, I really don't worry about it because I drive it only: 20 to 30 miles per month very short trip around my town. So I just go outside every 2 days to start the engine by the way you send power to the level suspension system.

Ensure that all your fuses are working meaning (not burned out), If not, there could be a cut off somewhere, I'm gonna check it out for you 2morrow coz I'll be off.

Just an update. My indie shop finally found out that the new air bag that they installed was defective. They conducted a leak test and found this out. They will prepare report to claim to BMW for the defective part. I have to wait another 2-3 weeks again for the new replacement part.

Still good that you found the problem. But know this: when you change one side you Should change the other! I didn't believe it and other side popped anyway...

But you hear the noise right? Window propoblly jumped out of it's place... If so all you need us little plastic holder...

My X had been sitting in the garage for couple of weeks, this morning I discovered that the rear suspension was about 2-1/2 inches lower that the front. As I opened the drivers side door the air pump kicked on and the rear height went back up to normal. I've been monitoring it to see if it drops again. Does this mean I have a leaky rear air bag? I have an 02 4.4i with 87,000 miles. Is it time to replace both air bags?

Yes, you have leaky rear air bag.

hopefully it is indeed the air bag like i suggested to you since the beginning ;)

they probably supplied you with a used air bag passed off as new.

indy that claims warranty from bmw PI/ACC? san yan?

anyway what will happen to the other parts you replaced but turned out wasn't defective?

I just checked with Arnott Inc. for the Rear Air Suspension Air Springs for 2000-2006 BMW X5 and they said they do not carry them. The only choice left is the stealer or a salvage yard. Does anyone know of another source?

UPDATE:

I just found two online sources for the airbags and they sell brand new OEM for $181 shipped.

2005 BMW :: X5 4.4i N62 (E53 chassis) - Suspension, Steering System - Suspension Air Bag Parts And Accessories Catalog - KO Performance

Pelican Parts - Product Information: 37121095579-M9

try checking your brakes.....my x5 3.0d 2005 recently had the suspension warning come on...there was no difference in ride or height, but my ride height adjustment button woulnd't work...it was followed a few days later by the brake lights coming on....

Had the break pads and discs changed and the suspension warning has gone away too and my ride height adjustment button is working too....

not sure what the connection is .....

Those are non-connected systems, just coincidence that the air suspension didn't act up yet since the brake maintenance... The air suspension inactive message is usually intermittent when it is a funky relay contact.

Just wanna conclude my rear air suspension problem. Problem solved. My indie shop found out that the replacement airbag was defective. They installed a new one and my X has been sitting in the garage for 3 nights now without any sagging problem..YEHEY !!!!!!!

I'm having a similar problem, without the message light. Rear end squatted and wife drove it and it cut the inside of the tires.(ouch) I've checked both fuses 7.5 and 30 amp and also there is a relay inside the airpump housing, all checked out. I jumpered a paper clip after I removed the relay and pump came on.( so i know pump is good). I jacked up rear end and cleaned right rear sensor and put back together and started X5, everything came on and leveled out. All was well, or so I thought, next morning rear end squatting. I ordered new leveling sensors from ECS tuning.com, only problem was backordered, so I had to go to the dealer.(extra 20 bucks) They will be in this Monday and i'll install them on Wednesday, hope it works or next step will be leveling computer. Thanks for all the great info on this subject.

I finally got my Arnott front left air strut last Wednesday. I hope the shipping all the way here didn't do damage. Packaging is very good though. Will have my mechanic install it this week. Anything I should watch out for?

Thanks!

phildg2000,

Where do you bring your X5 for repair ?

Grimace, The bags leaking would be why it is dropping/sagging. And when the system has a leak the pump has to be run a lot more often than normal and the relay that powers the pump gets burnt contacts which causes the inactive message.

You need to confirm the leaking airbags, fix that then change out the relay...

Hey blueagle, we operate a gasoline station and I have mechanics on duty in our service bay. I guide them from knowledge I get from this and other forums. I also have a PC based GT1 for diagnostics.

I'm adding to this thread as it seems the right place to do so.

My right rear sits about 1/2" lower than the left (fender flare lip to ground). Measuring rim to edge of lip is slightly more of a delta. I can see the sensor and arms and they are not in the same orientation relative to the suspension arm. I'm going to get into the software and see if I can adjust incrementally as a previous poster. I only have the rear air suspension. I'll report findings as I go.

Cheers.

Connected with computer. Didn't really see a spot to incrementally adjust up. There was an adjust up, which just raised to max, then settled to zero. So, I used a jack, bumped the corner up, checked all 4 corners and reset zero ride height. When I started the car it rose to that level and held.

Note, I don't suspect leaks, as it held overnight and the bags were still inflated.

i have a bmw x5 3.0d e53 2005 model x5 sportpack.i have air suspension in the rear what does it actually do since i cannot adjust the air myself

What does it do
 

If your vehicle has extra weight on rear end, the ride-height sensor will detect this and use the air suspension to return the vehicle to the programmed ride height.

this may help:


BMW Technology Guide : Self-levelling suspension


https://www.youtube.com/watch?v=fpc0QAiQrzU

Selfleveling suspension

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