Daily Driver Review: Performance Power Kit S1 - N55 335i
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05-28-2012, 01:30 AM
Drives: 335xi Silver
Join Date: May 2012
Location: Troy, MI
Originally Posted by
Anyone else notice RPM surging up and down at cold start?
As it warms it idles more smoothly?
I had the same thing happen to me this morning, first time.
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