just giving my 10 cents here read these other posts and well i had all three abs related lights on ,on my dash....so i just went out and crawled underneath my 320 where the pump and motor are located behind the drivers headlight and just wiggled the 15 pin connector without even removing it just yet and sweet it worked.....and another thing to removing if you do so everything on mercedes are known to be torx bits internal and external which are metric which are not cheap as regular sockets and bits.....you can go to any auto parts store and by them mostly sold individualy.....also the cover over the 15 pin connector you wont break it off if you lay down underneath like i said before and just push the cover up it slides in place .....