Ikwalsh6677
New member
I'm looking for a bit of help. I recently bought an 06 Z4M. It's in good order but I felt mechanically it was a little under the weather. I checked the fluids and spark plugs and decided to do a full change as everything looked dirty, worn and well used. I'm most of the way through but when I took out the shield under the front of the car I found two black rubber 'grommets', they are 22mm diameter tapering to 16mm diameter and coarsely threaded on the inside. I can only think they came loose when I took the engine cover off above the spark plugs. The both have the word Bruss and one has the number 114 the other 37. Does anybody have any ideas? Thanks in anticipation.