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Old 07-24-2010, 11:56 PM
Registered User
Join Date: Dec 2009
Location: Sydney Australia
Posts: 29
300TE M103 rough idle when pointed down hill.

Hi guys i hope you can help. I pulled out my O2 sensor yesterday and gave it a good clean. It appears to have helped as my idle is much more consistent on level ground. The weird thing is when i stopped at traffic lights on a slope the idle was really rough but fine again on the flats. Any ideas what could cause this weird behaviour?

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Old 07-26-2010, 12:19 PM
david s poole
Join Date: Mar 2005
Location: dallas
Posts: 1,822
dirty strainer in the fuel tank at fuel outlet.
David S Poole
European Performance
Dallas, TX

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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Old 07-26-2010, 12:47 PM
mak mak is offline
Join Date: Jul 2006
Location: Westfeld .
Posts: 687
Originally Posted by david s poole View Post
dirty strainer in the fuel tank at fuel outlet.
Great to have professional advise, much appriciated with odd faults like this.


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