Originally Posted by t1hybrid
Had it professionally installed on a 2010 335i xdrive and it didn't work. the shop called customer service and still couldn't get it to work so they put my car back together and gave it back to me in the box. Anybody know what eas return policy is??
We've never had 1 failure on these modules, they're essentially bulletproof.
Pictures of your connections would be helpful to diagnose where the issue is.