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E60 / E61 (2004 - 2010)
BMW 5-Series E60 Sedan was first seen in the Unites States in the fall of 2003 with a 2004 Model Year designation. The E61 wagon followed shortly there after. The E60/E61 5 series is now available as a 528i, 528xi, 535i, 535xi, 550i and a 535xi sports wagon! -- View the E60 Wiki

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Old 04-17-2019, 09:42 AM
jcbryant6 jcbryant6 is offline
Just some guy
Location: Central Coast, CA
Join Date: Nov 2012
Posts: 59
Mein Auto: 2010 550i
Question Pending Engine Misfire Code

I have a 2010 550 with about 145,000 miles on it. When I am traveling at highway speeds (65+) and apply heavy accelerator pressure the check engine light flashes, stays on, then I loose power and it feels like I have a misfire (engine vibration). If I shut the car off it runs fine. I check the CEL with my BlueDriver and it only says a pending misfire, but only on a single random cylinder each time I have this issue. The error clears with no probelm and only comes up agains when the same scenerio is repeated.

The coils and plugs were replaced about 40k ago and I have the Bavarian High-Performance coils. I look at the plugs during recent maintenance and the look pretty good.

I just recently replaced the valve cover gaskets and was very careful when removing all of the sensors and putting them back in the same location.

If it was a cam position sensor I would think it would happen all the time, not just when I'm flooring it while already at speed.

Any help it greatly appriciated, trying to figure this out without paying the stealership to read the error codes.
2010 550 M sport - Deep Sea Blue Pearl / Beige - Premium Pkg - Sport Auto w/ paddles - NAV - Active Steering - L7 - Comfort access - 20% Tint - Trinity 12w LED AEs - Smoked side markers - Solaris blinkers - Dinan intake
TO DO: - Dinan exhaust - throttle body -Stage 3 - Dual RPI ram air scoops

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Old 04-17-2019, 04:04 PM
Gnote505 Gnote505 is offline
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Location: Ocean County NJ
Join Date: Apr 2019
Posts: 2
Mein Auto: 2008 BMW 550i M Sport
I have a 2008 550 M sport I have it at the dealership now. having a similar issue miss firing. the dealer has had it a week and charged me $700 to tell me the valve seals are bad and they want $7000 to pull the engine and fix it . My normal mechanic put plugs in it and switched the coils around and still gets the same cylinders miss firing. My car has 85k on the clock. BMW also changed the coils around same misfires. Now I have the shop mechanics bidding on buying the car.
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