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#1
05-08-2005, 08:29 PM
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hesitation
This is my first post from down-under. I've just purchased a 2001 E39 525i sport with 50k kms. It has a strange hesitation from idle when I attempt to accelerate hard. It seems to relate to the motor as there is no rise in revs, so I don't think it is the transmission. It just keeps idling for a split second and then accelerates as normal. Gradual acceleration is fine, no problems once the thing gets going with kickdown etc-only from idle and only when I try to go hard. Disconcerting when the gap in the traffic is small. Anyone got any ideas? Thanks from kangaroo land.
Aussie 525i Last edited by Aussie 525i; 05-09-2005 at 08:50 PM. 
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#2
07-26-2005, 02:26 AM
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No worries mate. She'll be right! Could be the MAF sensor. Sometimes the flap inside can bind, causing a hesitation. I believe it's a potentiometer. You can try cleaning it first to see if things improve. I've used throttle body cleaner. Not too much though, just a few short spirts.Work the flap back and forth manually a few times, and wipe any excess off.
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