E-Class (W211) 2003-2009

car won't start in the cold

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Old 12-06-2009, 07:04 PM
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2008 ML350
car won't start in the cold

For a few weeks now I’ve noticed that on cool mornings about 42-45 degrees, and sitting for about 16-20hrs, my car will crank longer than usual 3-5 sec and then it will start. On warmer days it will start right up no problem at all.

Today it got down to about 32-34 degrees; the car will crank normally but won’t start at all. Check engine light does not come on, spark plugs were changed in june2009, and the crank shaft sensor was also changed a few months ago. Have not changed fuel filter yet could it be …

Car has over 99000 miles.
Appreciate your replies
Old 12-06-2009, 09:35 PM
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2008 ML350
Just realized that I wouldn’t get a check engine light unless I get the car started
So, I used the OBD II scanner got the one code P0335 (crank shaft position sensor) could it be that I purchased defective part on eBay?

think i'll go to the dealer tomorrow...
Old 12-07-2009, 01:48 PM
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2008 ML350
New bosch oem CPS did the trick ...
Old 12-08-2009, 05:32 PM
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'03 E500
Engine crank sensor may be failing...


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