05/23/2026
2006 BMW Z4 came in with the concern of the car stumbling then shutting off when coming to a stop. Customer attempted a couple repairs but called us for an accurate diagnosis. We test drove the car while monitoring engine data and determined that there was an issue in the VANOS system causing the vehicle to die out. We found that the problem was a clogged filter to the solenoid not letting enough oil pressure return the mechanical plunger back to rest. This was all caused from a previous oil change, someone left out the stem in the cap causing a lot of un filtered oil go through the engine. We did an oil change, replaced the cap, and cleaned out both filters, now this Z4 is back to smooth riding! ๐๐ผ๐ง