Excessive noise from the front of the S54 engine indicated to the dealer that I had the dreaded situation of loose VANOS cam bolts. Luckily, the repair was done…
One of the most useful mods that I have done was to add a smartTop Controller to my Z4. Normally you have to hold the console or key fob buttons down for the…
Trunk illumination in the Z4 is pretty measly with a single small light tucked all the way on the right side. Put a couple of items in the trunk and the light…
This project is to swap out the Z4M's stock shift knob with that from the M5. The reason is shorter quicker throws and smoothing out some of the notchier…
By November 2016 the high beams on the Z4 had been acting increasingly wonky to the point that it was hard to trust driving at night. They'd flip on at random…