[IghtCya]

hello, I have an 08 328xi and when I take the car for a drive after about 10-15 miles my traction control light comes on with the 4x4! warning light, but when I turn the car off and go to drive again it goes away until I drive another 10-15 miles

[Brandoch]

Scan the car with a scanner that does BMW specific codes.

[IghtCya]

I have already done that no codes related to the problem

[lordnikon]

Have you checked your ABS sensor

[IghtCya]

yes I replaced all 4 already

[chilledn52]

Check your battery terminal connectors to make sure they are tight

[Brian86]

If it's giving the 4wd trifecta, there is a malfunction code stored.

The OP has not scanned the car with a BMW capable scanner. Probably a run-of-the-mill OBD scanner.

The helpful thing is to direct him to a foxwell/schawben scanner, INPA/ITSA, or some similarly capable cell-phone app.

Or we can just throw darts at a list of parts and post which ones we hit.

[IghtCya]

its not giving all the lights it did but I replaced the tc motor actuator and abs speed sensors and the lights went away the only one that comes back is the traction control triangle and 4x4!

[Brandoch]

And yet no codes have been divulged. Anyone want to play darts?

[IghtCya]

this is error memory if anyone knows if this could cause the problem

[Brian86]

From the looks of that, the problem was not wheel speed sensors.

Educated guess: T-case is smoked, the actuator is bad, or the actuator gears have failed.

Sounds like changing the actuator did not fix the problem. Did you perform the T-case actuator re-learn/adaption reset?

Is there fluid in the T-case?

Are the gears damaged?

[IghtCya]

from what I could tell when I felt inside the tc while doing the change all the gears were solid and I reused the plastic connector thing from my old tc actuator so Im not sure if I would still need to do the the actuator thing you mentioned

[IghtCya]

oh and yeah I did a tc fluid change while I was doing the tc actuator

[e91Owner]

Originally Posted by IghtCya

oh and yeah I did a tc fluid change while I was doing the tc actuator

But you didn’t reset the adaptations, otherwise you wouldn’t have the fluid wear faults.

[IghtCya]

Originally Posted by e91Owner

But you didn’t reset the adaptations, otherwise you wouldn’t have the fluid wear faults.

how do I go about resetting the adaptations?

[e91Owner]

Originally Posted by IghtCya

how do I go about resetting the adaptations?

There may be ways other than ISTA, but I’ve always used the VTG function in ISTA.