Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #11  
Old 02-16-2024, 08:12 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,862
andrewwynn will become famous soon enough
Wet bought two nearly identical e53 X5. We used them both as daily but it was exceedingly helpful to have a "spare parts" host at times. Pulled parts more than once to make one operational. Also as one was older I got to practice a repair on one that I would be able to fix faster on the second go.
__________________
2011 E70 ē N55 (me)
2012 E70 ē N63 (wife)
Reply With Quote

Sponsored Links

  #12  
Old 02-28-2024, 09:22 AM
Member
 
Join Date: Nov 2021
Location: UK
Posts: 135
Themoog is on a distinguished road
Further to my trans failsafe program..
I took the car to the transmission specialist who rebuilt the unit.

I drove the car for about 1 1/2 miles absolutely fine. No problem whatsoever until I had stopped and turned the engine off when I dropped the daughter off.

Upon restarting it went into failsafe mode which also included failure of all the instruments on the cluster apart from the fuel gauge. The temp gauge was all the way over the hot side. No speedo and no rev counter.
I maybe mistaken (due to my heater blower fault - see other thread) but the HVAC didnít seem to respond when I fiddled with the Ď-Ď and Ď+í for the fan either.
Everything else seemed to be working ie lights, radio, steering and seat auto wheel adjustment (I have the comfort option).

Anyway, Ian at the garage plugged in the diagnostic machine to see whatís what and all that came up were 3 modules to read. He said that there should be lots more on the display which suggests ( to him anyway) a wiring fault or body control module fault but he did say that he is an expert on transmissions, not electronics.

Thoughts or experience anyone?
Reply With Quote
  #13  
Old 02-28-2024, 11:02 AM
EODguy's Avatar
Member
 
Join Date: Jun 2018
Location: Saudi Arabia/Philippines/USA
Posts: 3,852
EODguy is on a distinguished road
What 3 modules?

I would point out that the cost of a foxwell nt-510 that can stay in the car without issue (60c here) should be just fine there and then you'd have the ability to check right away without hoping that the fault repeats for your indie...

Sent from Embassy network using Tapatalk
__________________
"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course
Reply With Quote
  #14  
Old 02-29-2024, 03:24 AM
Member
 
Join Date: Nov 2021
Location: UK
Posts: 135
Themoog is on a distinguished road
I don’t know what 3 modules. I should have took a screenshot.. Someone on Bimmerforum uk mentioned that if the temp gauge is all the way over in red it means that there is no data from the ecu. Apparently.
Reply With Quote
  #15  
Old 02-29-2024, 06:54 AM
Member
 
Join Date: Jan 2011
Location: Blackburn UK
Posts: 417
RRPhil is on a distinguished road
Is Fuse 1 okay in this fuse block? It powers the engine & transmission ECUs. (This is actually off a L322 Range Rover, but I assume the E53 is the same).




I had similar symptoms on my L322 when the thermostat heater shorted.

https://www.rangerovers.net/threads/...4/#post-421594

Phil
Reply With Quote
  #16  
Old 02-29-2024, 01:22 PM
Member
 
Join Date: Nov 2021
Location: UK
Posts: 135
Themoog is on a distinguished road
Iíll take a look when it stops raining.. The engine is running ok - starts ok too. Itís just the other things mentioned above.
On a side note - could my hvac system cause this as Iíve noticed that although the blower motor is groaning it sometimes doesnít run like itís stuck or something.
Just thinking out loud.

Last edited by Themoog; 02-29-2024 at 01:27 PM.
Reply With Quote
  #17  
Old 03-02-2024, 09:42 AM
Member
 
Join Date: Nov 2021
Location: UK
Posts: 135
Themoog is on a distinguished road
Ok, so Iíve not checked those fuses yet as itís raining all the time. I have however, scanned the car when it was cold before starting. Only the ignition was on.
This time-
DD CAN timeout ASC/DSC
DC CAN timeout, electronic transmission management (EGS/AGS)
78 signal, vehicle speed
80 CAN BUS monitoring
82 CAN ABS/DSC signal
81 CAN timeout DME
20 wheel speed sensor front right transmits no signals
21 wheel speed sensor front left transmits no signals
68 steering angle sensor internal

Some of those may be explained as the car was stationary Iím not sure.
I took it for a drive for 30 min and it drove ok.
The heater blower motor would not work at all and the hill decent switch was illuminated and would not turn off.
No lights on the dash.
During the drive I reconnected my scanner but it would not communicate with the car at all.
Got home and switched off. When I restarted it was in trans failsafe mode with no speedo or rev counter and the temp gauge was right over in the red again.
Something is going on that I canít figure out.
Anyone around the globe got any ideas?
Reply With Quote
  #18  
Old 03-02-2024, 10:32 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 10,862
andrewwynn will become famous soon enough
Seems you have a lot of wiring issues. Was this car ever in a flood situation?

I would pull all the connections off on the ebox and clean them with contact spray and reassemble.

I think there's a tie to can buss on the oil sensor known to short and cause problems. (not sure if it's that sensor. I had a problem in that neck of the woods once but it ended being something else so I didn't need to swap the oil sensor).
__________________
2011 E70 ē N55 (me)
2012 E70 ē N63 (wife)
Reply With Quote
  #19  
Old 03-02-2024, 10:32 AM
Henn28's Avatar
Member
 
Join Date: May 2021
Location: Louisiana
Posts: 729
Henn28 is on a distinguished road
So many of those symptoms are identical to those I had when my DSC module failed. Perhaps your model hasn’t failed (hence no trifecta), but there is a communication issue to/from it with a harness or connector?

My AC and blower were dead
My speedometer was dead
Transmission failsaife mode activated
Almost all of the same timeout codes were present
Pegged temp gauge
Strangely, my aftermarket backup camera that I installed stopped working. I’m assuming because the circuit/fuse I tapped off of in the trunk went dead

It would run fine for a few miles and then all the above would appear, presumably as it warmed up and something shorted internally. I didn’t have the wheel speed sensor codes though. Long odds that they both would fail at the same time. I’m still thinking your DSC module or wiring harness is failing.

I had no luck with eBay modules and had to buy a new one. Fortunately they are still available, but not cheap. Hopefully you can find an x5 or two in a junk yard and yank the modules. If in fact it ends up being the DSC module.
__________________
Current
Original owner 2002 E53 X5 4.4i to 4.6i swap
1993 Mopar 318 Jeep Grand Cherokee - original owner
2015 V6 Jeep Grand Cherokee - the nice car for my wife
Former
1972 Audi Fox
1986 Saab 900S
1996 BMW Z3
1998 BMW E36 M3 Sedan
2004 BMW E46 M3
2006 Audi A3 Quatro

Last edited by Henn28; 03-02-2024 at 10:39 AM.
Reply With Quote
  #20  
Old 03-02-2024, 10:58 AM
Member
 
Join Date: Nov 2021
Location: UK
Posts: 135
Themoog is on a distinguished road
No itís never been in a flood.
The climate controls still light up and the led fan speed bar goes up and down but nothing from the fan.
I also noticed that when I switch the ac on and off I couldnít detect the compressor kicking on or off and altering the rpms.
I think I need an expert..
Cambridge Uk anyone..?
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 07:09 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.