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Old 03-05-2014, 09:43 AM
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Dreaded DSC, 4X4 lights

[cross-post: ]Dreaded DSC, 4X4 lights - Bimmerfest - BMW Forums

Fault codes are 5462 and 5F3A.

Any easy way to know if it's the servo/actuator vs. the transfer case itself? (Trying to avoid giving the dealer an early Christmas.)

Thanks in advance.
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Old 03-05-2014, 01:53 PM
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Did you do the steering wheel trick? Turn the wheel from lock to lock and it may go away...
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Old 03-05-2014, 02:50 PM
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Quote:
Originally Posted by Couper93 View Post
Did you do the steering wheel trick? Turn the wheel from lock to lock and it may go away...
I did. That didn't do anything for me. (Not likely the steering angle sensor.)

In fact/also, the fault codes relate to the transfer case and servo. There's a cheap replacement for a worn gear in the servo, which I'm going to try.

But if that doesn't work, I just wonder, for strategy purposes, if there's a way to know whether the transfer case is the culprit, just the servo, or both.

If it's the servo motor, then it's $800 or thereabouts for the part. And I think I can handle the job myself.

But if it's the transfer case itself, then I'm hesitant to fix. Dealer quoted $4200.

In short, I don't want to spend $800 on a new servo if the problem is the transfer case. (If the dealer is already going to beat me up, I don't want to be punching myself in the face too.)
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Old 03-05-2014, 03:51 PM
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While on bimmerfest you suggest you know about battery related issues, have you checked the battery??...without the basic info on the X it's hard to guess, but I had similar issues but only had 8,000m so it was a bad battery in the end....if you've got 200k on the X then it could be transfer case, if it's an 08 it could be transfer case....need more details otherwise we are all just guessing here....
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Old 03-05-2014, 09:18 PM
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Sorry, Are you about 70K miles? My Money is on a bad throttle body.
Bunch of transfer case codes, transmission codes and a tb that passed adaptation.

Farther troubleshooting reviled one bad spot on the tb motor.

Issue fixed now for 30k miles.

Anything like these images:


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Old 03-06-2014, 02:43 PM
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Quote:
Originally Posted by X-cellent View Post
While on bimmerfest you suggest you know about battery related issues, have you checked the battery??...without the basic info on the X it's hard to guess, but I had similar issues but only had 8,000m so it was a bad battery in the end....if you've got 200k on the X then it could be transfer case, if it's an 08 it could be transfer case....need more details otherwise we are all just guessing here....
Sorry. For some reason, I was expecting info to magically appear below my comments.

2007, 88K.
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Old 03-06-2014, 02:46 PM
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Originally Posted by gregg3gs View Post
Anything like these images:
Yes, pretty much, except for the CEL. What code was your CEL for?
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Old 03-10-2014, 09:54 AM
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Update: Problem turned out to be a worn gear inside the transfer case servo/actuator.

$125 part + Saturday morning under the car = no more DSC/AWD lights.

Notes at the bimmerfest thread linked above.
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