M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Uneven idling around 600-1000

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Old 09-29-2016, 10:16 PM
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1999 Mercedes Ml
Uneven idling around 600-1000

My ml430 constantly idles around 600-1000 and it keeps fluctuating, is this normal, should I clean the throttle body?
Old 10-01-2016, 11:46 AM
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2002 ML 320 & 2006 ML500
Look for a broken vacuum hose under the hood.

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