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Quote:

Originally Posted by Qsilver7 (Post 908684)

FYI...if you have the auto climate system (IHKA) versus the manual system (IHKR)...then the HVAC fan is designed to come on, in most cases, to not only circulate air within the cabin...but to also allow the microfilters to remove pollen & dust as well. This feature is probably loved by those that have allergies. :)

For those who find this small feature of the IHKA control panel annoying...without finding some type of coding with DIS or INPA etc to stop it...the best you can do is press the FAN SPEED button until all of the dashes " -" are down to one...then left your finger and press the fan speed button one more time. This will turn the HVAC system completely off.

If you come back to the car before 16 minutes (yeah, the ol' GO TO SLEEP time interval)...the system will still be OFF when you start the car. If you are away from teh car longer than this small time frame...the system will turn itself on automatically.

BUT...since the system is out of the AUTO FAN SPEED MODE...the blower will be at the LOWEST setting...thus all it takes is ONE PRESS of the fan speed button and the system will be OFF again.

I know for some...even this simple step of having to press the button (even once) may still find this totally annoying...but that's what you can do if you want to keep the AUTO climate control system off.

Or...you can trade your X5 in and get one that has the manual IHKR system. :)

(total control of the HVAC fan/blower if you have this IHKR control panel...which also comes with a different HVAC system which uses bowden cables to open/close the air flaps/adjust temperature/controls air speed/etc)

http://i19.ebayimg.com/05/a/000/77/47/e90f_4.JPG

sorry to wake up an old thread but in my x5 it wont turn off at all :( if I press the button all the way to off it shuts off then comes back on right away.

any reason why it would do this or is it a faulty climate control?

Quote:

Originally Posted by motordavid (Post 902413)

I run our HVAC on 'manual': if I want A/C I hit the snowflake button, and set vents and temp. If I don't want A/C it is never on: I leave car at '60' or '70' if cold out, and usually just floor and/or floor center vent, and never on 'Auto'.

When I start it up, there is no A/C, just the previously set temp and vent setting.

I realize there are fans of 'Auto' and running their A/C in a mix situ, 24/7, but I have never done that and have had zero probs with A/C in 11+ yrs/85k miles, or in any car I have owned in 50+ yrs of driving, fwiw.

Go to 'manual operation' and it won't be A/C, until you want it.
GL, mD

I do the same. Zero AC issues in over 10 yrs/170k miles (even with FL/TX heat). Last car with AC issues here was a '79 6.6L T/A in the early '80.

Wow, almost a year since I posted this. My original point deals with the AC actually cooling the car, not just fan running or the vent ventilating. My point is this: If I parked my car in the garage, turned off the AC (ie. click the '-' button until nothing is ON), turned off the engine, removed the keys, then the next morning when I wake up and start the car, it should NOT have the AC, Fan, Vent running. Yet every day, regardless if I want the AC or Fan to run, it will run. I would have to click the '-' button again to get it to stop. Only 9 out of 12 months do I have to worry about this, but it is still annoying since I expect the BMW to remember what I did last. And speaking of annoying, why in the hell couldn't BMW have a OFF button and not this stupid '-' button that I have to click multiple times to shut the unit down?

Quote:

Originally Posted by Moezer (Post 954046)

sorry to wake up an old thread but in my x5 it wont turn off at all :( if I press the button all the way to off it shuts off then comes back on right away.

any reason why it would do this or is it a faulty climate control?

Could be a failing IHKA or FSU/FSR.

Do a search for for both..."failing IHKA" & "failing FSU/FSR" (final stage unit/final stage resistor) which is one of the most common HVAC issues on the e53/e39/e46.

This final stage resistor controls the fan/blower and it's ability to regulate (run from low to high etc). A failed FSR/FSU can have symptoms of coming on all by itself even after the engine has been turned off...to not coming on at all...or operating erratically by going from high to low to high...or shutting off, then coming back on etc.

Again, this is a much discussed topic...so much so that you can google "BMW FSR e53" or "BMW FSU e53" and get plenty of results.

Good luck.

I see all the functions work pretty good it remembers the last setting I put it on but it won't shut off can the on I got now be fixed or I'm looking to get another one

Again, you need to determine if the issue is the IHKA...or if its a failing FSR/FSU. And if you're gonna throw money at parts without a proper diagnostic approach (paying a dealer or indy...or buying/using aftermarket software/hardware)...then the FSR/FSU is cheaper & has a higher probability rate at being the culprit.

Please don't take the paragraph above as a slam...it's a basic reality with many BMW owners (myself included) with this issue. You can look at/read about the many FSR/FSU threads and determine that it is most likely your same issue...and replace it (without spending more money for proper diagnostics). You could win and it be the issue...or you could lose and it could be something else (like the IHKA).

Quote:

Originally Posted by anthonytexas (Post 902369)

I've this annoying "feature" ever since I've bought my 2005 X5. Being in Houston, I really didn't pay attention to this since I would eventually turn the AC on anyways. About 9 out of 12 months, AC will be needed. Now that it is getting cooler, I don't like to have the AC come on every time I put my key in the ignition and turn on the engine. Isn't there a chip in the key that remembers my settings prior to engine shut down? Can I program this without having to take it back to the dealer for "key programming?

Sorry to revive such an old post but got same 'issue' 'feature' just dont want the aircon/blower to kickin each time I start the X5...is there any trick been discovered recently?gonna try the spare key and see if this is key specific but not sure...thanks

There is no trick...and the IHKA (auto climate control system) vs the IHKR (manual climate control system) was referenced in Post #19.

The IHKA (off) operating parameters was also discussed in post #19 describing how & when turning off the blower fan...it will remain off if you come back and start the car within approx 16 minutes...versus coming back at a longer time interval....and the AUTO function design elements will turn the system back on at the lowest setting. If you still desire the system totally off...then all it takes is ONE PRESS of the fan speed button to turn the system back off.

Again, if you do NOT want this feature or find it annoying to press the button one time to turn it back off...then the answer is to buy an X5 or trade for one with the IHKR climate system. :) (hopefully no one takes this reply as being mean or flippant...its not intended to be so...its just a reiteration of what was explained in post #19).

You shutoff the air by turning the fan speed down to zero.

Personally, the behavior I want is that the system starts the next time at whatever settings I left it in last time. If off, then remain off. If on at high speed and max cold, then come on at high speed and full cold. I WANT to make the setting changes instead of having a car that thinks it knows what I want it to do before I do it. How come this is not the default operation?