|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Is my transfer case bad?
|
|
11-26-2022, 06:34 PM | #1 |
New Member
0
Rep 5
Posts |
Is my transfer case bad?
After driving on the highway I am getting a yellow break light and 4x4 light. If I turn off the car and remove the key the lights will go away when I start it up next. Had the dealer look at it and said I needed a new transfer case ($4000). I have ISTA and am reading the following codes.
0055C3 - VTG: AWD limp-home control activated. No DSC specified nominal torque 0054C8 - VTG: Classification resistor 005EC0 - DSC: steering angle sensor adjustment Originally thought it was the transfer case servo motor so I replaced it and reset the adaption in ISTA. Still getting the same errors. Going to change the transfer case fluid to see if that does anything, but it did not look bad when replacing the servo motor. ISTA is saying there is a communication problem with the VTG control unit. The 4 wheel drive works after startup until the codes come on and they only pop up when driving on the highway. Around town it works fine, after driving about 5 miles on the highway the codes come up. So im not sure if it would be the Transfer Case itself or maybe the control unit? As far as I can tell the only thing happening is im loosing AWD drive and only using RWD, but this also disables my cruise control which is annoying. Any input would be helpful, im hoping to get the AWD working for the winter, but don't want to spend $2k on a transfer case. Last edited by BurningRubber92; 11-26-2022 at 06:37 PM.. Reason: typos |
11-29-2022, 07:24 AM | #3 |
Lieutenant
254
Rep 501
Posts |
How many miles were on your transfer case when it failed? Did you change the oil at all?
My TC oil was changed at 95k. Also hoping it doesn't fail. |
Appreciate
0
|
11-29-2022, 05:32 PM | #4 |
New Member
0
Rep 5
Posts |
It's been going on since under 75k, currently have 85k on it. I'm waiting on fcpeuro to send me new tc oil to see if that fixes it. I bought the car used so I doubt it was ever changed. It's just strange that it works fine if I drive under 40 around town but once I'm on the highway for a few miles it fails.
|
Appreciate
0
|
11-30-2022, 07:22 AM | #5 | |
Lieutenant
254
Rep 501
Posts |
Quote:
|
|
Appreciate
0
|
12-06-2022, 08:27 AM | #6 |
First Lieutenant
169
Rep 335
Posts |
If the steering angle sensor is bad or lost calibration then the car shuts off DSC and you get the 4x4 warning and limp home..You need to make sure the SAS is working and communicating with the DSC module. Protools or ISTA is needed to check this.
|
Appreciate
0
|
12-08-2022, 04:30 PM | #7 | |
New Member
0
Rep 5
Posts |
Quote:
PS. Im not sure if the actuator motor was bad, but the calibration was way off (1000 degrees). After installing the new motor it stays between 110 and 160 degrees. This is also my first time using ISTA so took much longer than it should. Great and simple program to use and saved me hundreds in programing costs. Last edited by BurningRubber92; 12-08-2022 at 04:33 PM.. Reason: update |
|
Appreciate
0
|
03-24-2023, 07:54 PM | #8 |
Registered
0
Rep 2
Posts |
If you do end up needing a new TC. I had mine replaced in my e90 328ix for about $700. I had a used TC with 90k miles and a trusted euro shop install it. Labor was about half of the cost. Goodluck
|
Appreciate
0
|
Bookmarks |
|
|