[Ikwalsh6677]

I am a first time poster. I run a 2012 M5 (it's the best car I ever owned) and a 2006 Z4M Roadster. I recently carried out an oils swap on the Z4M and came across these two grommets/ bushes, sat on the tray that protects the sump. I had recently changed the spark plugs and wonder if they had fallen down when I removed the spark plug cover. Has anyone any idea where they go. They are 22mm in diameter, tapering to 16mm and look to have a course thread on the inside, they have a depth of about 6mm. Both are imprinted with the word Bruss, one with the number 37 and the other with the number 114. Any help is much appreciated. Thanks in anticipation.