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E63 / E64 6 Series (2004 - 2010)
The E63/E64 BMW 6 Series builds on BMW's sporty heritage with aggressive lines and an incredible motor to back the design up. Available in coupe and convertible trims with a standard 4.8 liter engine producing 360 horsepower and 360 lb-ft of torque, the 6-series is a popular choice that exceeds expectations.

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Old 05-06-2013, 03:57 AM
Phreeto Phreeto is offline
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Location: Virginia
Join Date: May 2013
Posts: 7
Mein Auto: 2005 645ci
2005 645ci Cold Start misfire

Hey guys!

A week or 2 ago my BMW would stutter when turning the engine on from a cold start. I took it to the dealer who saw 5 misfires P0304, all of these happened on cold start. (Especially in cold mornings.) They replaced #4 spark plug and ignition coil. The day of the work was great. The next morning there was a misfire. Misfire the day after that. The Check engine blinks for a few seconds and then just stays on. When the engine warms up, everything seems fine. The Engine light stays lit... but it's probably due to the misfire.

Any suggestions to narrow down the wide range of issues would be excellent.

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