So far so good with the new CPS.

Here are some links with info that helped me.

http://www.peachparts.com/shopforum/showthread.php?t=102905&highlight=crankshaft+position+sensor+diy

http://www.benzworld.org/forums/w210-e-class/1219451-installation-cps-sensor-pictures.html?highlight=sensor

I used a 1/4" E8 torx socket with a short extension. A stubby would work well too.

Be sure and pinch the plastic clip at the end of the cable to release the clip before you pull the plug out of the sensor housing. It comes out easily.

All I had to do was to remove the plastic engine cover - about a 15 minute job total.

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2004 E320 4matic
2000 E320 wagon
-- in the past---
1992 190E 2.3 5-speed! (European Delivery Baby)
2000 ML320
1978 240D - 340k mi