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1990 500SEC
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41 Posts
Discussion Starter #1
Good evening from Ireland
I have been informed i have throttle body problems is this a commom 126 problem and would it explain my high idle and uneven running i have also replaced manifold gaskets and vacum pipes anyone have similar problems.
many thanks Niall

1990 500 SEC
 

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1988 560SEL sold:
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4,717 Posts
It does contribute to high idle issues and therefore it is a common issue. There is much written abut high idle on this forum and performing a search would unearth a treasure trove of knowledge and wisdom.

Have you checked to see if the throttle control switch is working properly?
 

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Hi
I just had a hight idle problem which i fixed
all the information is here..

The symptoms were it would idle normally when i first turn the motor on but after it warms up it start to idle high..like 1,500 rpm..if that is what is happening to u just do what i did in this thread and u should fix the problem

http://mbnz.org/forums/forums/thread-view.asp?tid=296914&posts=17&fid=12
 
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