|
I recently had my Z3M into a shop, thinking my VANOs needed servicing. Admittedly the S54 is quite a bit different than what you have in your 535. The reason I jumped in here is because ultimately the limp mode on my car was caused by faulty fuel pump. Motor wasn't getting enough fuel pressure when heavy throttle was applied. So, we replaced pump, filter, and MAF. Quite expensive, but problem solved, and VANOs did not need servicing.
|