I want to replace the Crankshaft Position Sensor on my '93 400E.

I found this DIY pictorial which is pretty good.

http://pingelblog.blogspot.com/2008/06/c43-amg-crankshaft-position-sensor.html

However this is the M113 motor.

Can someone please tell me if this applies to the M119 or if not,what else is involved. Thanks for any help.

Bad news - your car has two parts named the crankshaft position sensor. It's like the Larry character on the Bob Newhart Show that had two brothers named Darryl - very confusing. One goes to the front crankshaft, from the wiring harness I believe. But if you're trying to solve an operating problem you're likely more interested in the other one - that goes from the ignition control module on the left (driver) inside fender to the top of the bell housing, a bit left of center, accessed from below, allen bolt as I recall, tight but doable if you can get the car off the ground a bit.

Hmmmm confusing indeed.Sometimes I have to crank the starter several seconds before the motor starts.
So, I guess the second one you spoke of? Any idea of the part number on that?

Thanks for the info.

AllPartsExpress shows both of them - http://www.allpartsexpress.com/ShopByVehicle.epc?q=&yearid=1993%40%401993&makeid=MERCEDES+BENZ%40%40MERCEDES+BENZ%40%40X&engineid=1194656%40%40400E++%2F+V8%2D4196cc+4%2E2L+GAS+FI%40%40400E&keyword=sensor&subcatid=Crank+Position+Sensor@@Crank+Position+Sensor%2FIgnition+System&mode=PA but those symptoms could be a lot of things, better to read the fault codes first. Bad Crand Position Sensor is code 17 on pin 17.