How to replace the Crank Position Sensor (CPS) - S500

[amac]

Recently I had to replace the Crankshaft Position Sensor (CPS) in my 2000 S500 due to some starting issues. It is an incredibly quick and easy change, but since it seems like it's a common failure with these cars, I figured I'd document the procedure. BACKGROUND First - I started to notice starting the car when hot took more cranking than normal. Then one day I drove the car 15 minutes, and parked it for ~2 hours, only to return to a car which would crank and crank and crank, but not start. After some research on this forum, I ended up purchasing a new CPS which completely resolved by issue. The CPS issue I experienced was also related to heat--eventually (while waiting for the new CPS to arrive) the car got so bad it would die if sat idling in a parking lot for 10 minutes, then would only re-start ~four hours later after all had cooled off. REQUIRED ITEMS 1) New Bosch Crank Position Sensor (~$40 from autohausaz) 2) E8 female Torx Socket 3) 1/4 ratchet + 8-12in extension PROCEDURE 1) Remove plastic engine cover's (including air filter's) 2) Access the CPS from the drivers side - back / bottom of the cylinder head (access pictured below) 3) Remove CPS Plug 4) Remove the CPS - New and Old CPS ... removed -

To remove this ad, register today or login if you already are registered!

[Skylaw]

Thank you, amac - going into my bookmarks for sure!