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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 09-01-2004, 03:44 PM   #1 (permalink)
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In the car today, I was stuck in traffic on a hot day. After a few minutes (still at standstill), the revs at idle fell slightly and a judder started. This got worse until the whole car was being shaken - it was quite noticeable. Also, revs dropped further to about 500rpm. Pulling away, revs rose slightly lumpily - but eventually engine pulled as normal as revs rose above 2k. I checked under the bonnet when @i got home and the engine was shaking a fair bit. All this time, while the revs were lower than normal, they were not 'hunting' - it was a fairly even idle. Any ideas? (oxygen sensor??)
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Old 09-01-2004, 09:58 PM   #2 (permalink)
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O2 is possible though they are not that violent on engine. Any check engine lights?? If so get the codes first; these codes may pinpoint your problem or at least steer you in the right direction saving you the guess work. let us know
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