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Old 01-16-2013, 03:05 PM
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DHoang DHoang is offline
Location: Austin, Texas
Join Date: Dec 2008
Posts: 1,075
Mein Auto: '98 528i, '82 323i
That idle problem sounds like it's caused by a bad idle control valve that's either sticking or not opening up. Does your 535 motor have something that looks like this part?

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