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X3 E83 (2004 - 2010)
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Old 12-24-2012, 10:18 AM
Ron Birchard Ron Birchard is offline
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Location: California
Join Date: Dec 2012
Posts: 1
Mein Auto: X3
Question X# hard to start when cold

I have this same problem and BMW Dealer can not figure it out.

Our 2007 X3 began to start and stall on cold mornings. This got progressively worse. Once started, it would not rev over1900 rpm until it reached near operating temp. Once up to temp, runs normally. Took it to dealer, they reprogramed, forund valvetronic faults, replaced motor, charged me $650+, did not solve problem. Still showing valvetronic faults.Got second opinion. Checked thermo time switch, coolant temp sensor, normal. Any ideas?"

After warming up it runs fine????
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