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      02-20-2014, 08:36 PM   #1
TheDoc53
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CEL/Reduced Power Warning/Fuel Injectors

Got the reduced engine power warning @ 20k miles and CEL. 3 Defective fuel injectors were making codes but all 8 were replaced under warranty along with coils. Only one spark plug was found to be "cracked" due to heat buildup and BMW allowed replacement. Odd that the other plugs weren't replaced. Also they found the cowl and engine cover was damaged due to heat build up.

Is the cracked cover issue related to fuel injectors and do you folks think they should have replaced all the plugs or is this OK? Car is running fine.

FYI, Noticed smoke from the tailpipes since delivery but service said it was condensation back then.
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      02-20-2014, 09:17 PM   #2
miahendersons
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I had my X5 50i in 2 weeks ago for the slow starting/cranking and black soot on the rear. Thanks to other people on this forum, I mentioned my issues and also mentioned Service Bulletin Number: SIB-13-07-12 to the SA and they replaced all of the injectors and plugs in the car. I would think they would do the same for you but maybe I am crazy.
Good luck.
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      02-21-2014, 05:23 PM   #3
TheDoc53
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Thank you for your advice.

Dealer told me that only one plug was defective. I am waiting for the tech to find out if they checked the others. Sounds odd based on how extensive the work was related to this. Never had a plug crack from heat in any car before this.

FYI, the TSB number is for a 7 series.
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      11-05-2014, 02:05 PM   #4
shark715
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I kept getting the reduced power warning as well as the engine running very roughly on our 2011 50i, and the dealer seems to have fixed the problem by just updating the software. They said it had been throwing a cylinder 8 misfire code, but apparently the problem is now solved.
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