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Possible leak in vacuum advance system/rough idle and car shakes

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E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

Possible leak in vacuum advance system/rough idle and car shakes

Old 01-11-2019, 07:30 PM
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2001 e430
Possible leak in vacuum advance system/rough idle and car shakes

Hey guys im new to the forum but have had my 2001 mercedes e430 for about 6 months now but about a month and a half ago i started my car to leave my house and the engine ran really loud and the rpms shot way up but went to normal after the car got to normal temp i just changed the oil 3 days ago and it was warm today and took it for a drive and the car ran fine 2 hours later on my way to work i stoped at a red light and my car did it again it sounds like the engine is running hard i wanted yo know if it will hurt the car to run it like this until i can get it fixed in 2 weeks or if i should park ot and wait i do have another car i can use so i dont need to run it if i dont need to but was curious if it will harm anything and idk if it means anything but the car does have 168289 miles on it but other than this it runs great

I did check my motor mounts so there is nothing wrong there any advive at this point is apprciated and how much it may cost to fix thanks all

Last edited by *toxic*; 01-11-2019 at 07:41 PM. Reason: Added information
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Old 01-11-2019, 10:58 PM
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i wouldn't continue driving it in that condition, nor would I gamble on your finances by sitting at my computer
and relying on your description of the sound. the potential cost to repair an engine can be severe. get codes
pulled. sound and engine revs changing sounds like sensor and mechanical combo. it's silly to suggest a
repair cost based on the barest of factual data.
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Old 01-11-2019, 11:30 PM
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Last edited by *toxic*; 01-11-2019 at 11:38 PM.
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Old 01-11-2019, 11:32 PM
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I do have a guy coming to look at it next week i told him everything its been doing and he thinks a vacuum leak i have talked to a lot of mechanics that are benz certified and they all say the same thing its a vacuum leak of some kind
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