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Reviews.

 

Amazon Storefront reviews for Car Analysis

 

 

Amazon reviews for Crystal Multimedia Controller Knob Bimmerpost review 1
Amazon reviews for Crystal Start/Stop Button Bimmerpost review 2, page 1
Amazon reviews for Crystal Gear Shift Knob Bimmerpost review 2, page 2
Comment: Some buyers are reporting damage to their cars resulting from installation of the Crystal gear shift knob, blaming the product. This is incorrect information. The gear shift knobs are tested and verified with all BMW models we claim they are compatible with. If the vehicle cannot shift into gear after installation, a short circuit in the gear shift module under the gear shift knob has occurred. There are three possible causes:
a) BMW dealership tried to install, following their installation procedures instead of ours.
b) All vehicle batteries were not disconnected or the center gear console removed before installation.
c) The ribbon cable was not in the correct position when the cable lock was closed. The cable tabs have to fit exactly into the connector's cutouts before closing the lock.
It is very important to follow our installation instructions in detail and view our installation videos before installation!
Bimmerpost thread for Crystal Volume Button, page 1
Amazon reviews for Crystal Volume Button Bimmerpost thread for Crystal Volume Button, page 2
  Bimmerpost thread for Crystal Volume Button, page 3