First I apologize for adding a non-Benz item but I'm pulling my hair out trying to figure this issue out.

1. Car starts perfect when it cold or has sat. However, if it is warm and sets a 10-15 minutes it cranks and cranks - finally starts and then white smoke
2. I have had the car into my favorite shop and they have done everything possible
a) Compression great
b No error codes
c) Timing belt replaced a few months -- preventative maintenance
d) New fuel and air filters
e) glow plugs are ok

The only item that they thought could contribute was that the operating temperature was a little cool about 10 C less than what it should be.

Does anyone have any suggestions.


Please and thank you

3pointstar

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