Sometimes when turning left four wheel drive engages

Tiny
AUSTIN LOOSE JR.
  • MEMBER
  • 2014 BMW X3
  • 16,000 MILES
When I drive and sometimes but not always when I turn left my 4x4 engages but as soon as I go straight it goes back to 2x4.
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Wednesday, January 15th, 2020 AT 3:37 PM

1 Reply

Tiny
KEN
  • ADMIN
Hello,

It sounds like you have a wheel bearing hub going out which allows the ABS wheel speed sensor to be off a little which makes the car think it is skidding and engages the 4 wheel drive to regain control. Do you hear any noises that are unusual in the front? We should run the codes as well. here is a video to show you how for the ABS system:

https://youtu.be/rTtAnsOlZU4

Here is how you replace the front bearing hubs in the diagrams below. Check out the diagrams (below). Please let us know what you find. We are interested to see what it is.

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Thursday, January 16th, 2020 AT 12:37 PM

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