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Old 01-20-2012, 07:38 AM
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thekurgan thekurgan is offline
Bad Lieutenant
Location: Sacramento, CA
Join Date: Jul 2007
Posts: 6,281
Mein Auto: S62B50 Powered
I experienced this unsmooth idle when the vehicles were warm, felt like an old school vacuum leak. N54 vehicles were extremely smooth at idle.

2002 E39 M5 / TiAg / Tubi Rumore / E60 SSK / Ultimate pedals / NCS Coding /
BMWCCA #453648
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