In this guide, you will learn how to replace BMW clock spring (also referred to as spiral cable).
A faulty BMW clock spring is common and causes the airbag light to come on.
Replacing the clock spring on a BMW is a fairly easy job that most DIYers can accomplish on their driveway. Be aware that you may need to reset the steering angle sensor which requires a BMW specific diagnostic scanner. To learn more about clock spring and how they work read this article.
A brief overview of BMW clock spring.
Disconnect BMW battery. The battery is located in the trunk area on most BMWs. including 3, 5, 6 X1, X3, X5 series.
Remove BMW airbag and steering wheel from the steering column. On the back of the steering wheel, you will notice one or two access holes.
Inset a rod and press on the spring to release the airbag.
Next, remove the steering wheel center bolt.
If you need help with this step follow this guide on How to remove airbag and steering wheel on a BMW. Mark the steering column and the steering wheel before you remove the steering wheel.
Remove BMW steering wheel from the steering column.
Remove Torx bolts in order to remove the clock spring from the SZL module.
Use a small screwdriver to unlock the BMW steering wheel clock spring from the SZL module.
Install new BMW clock spring.
Reconnect the steering wheel, airbag, battery and start the car.
Watch video on how to perform this step.
Clear SZL fault codes and carry out steering angle sensor calibration using a BMW scan tool.