Bimmerfest - BMW Forums

Bimmerfest - BMW Forums (
-   7 Series - F01 / F02 / F03 / F04 (2008 - 2015) (
-   -   F01 Drivetrain malfuction (

shakmonster 06-02-2020 08:45 PM

F01 Drivetrain malfuction
Hello all recently I encountered a check engine light as I was driving with a message that said "drive train malfunction loss of power." When I read the code on my scanner it said cylinder three is misfiring. Prior to this I changed all sparks and both left and right PCV valves car was running smooth until this issued occurred. As of now I took out the cylinder 3 spark and cleaned it and the coil pack put them back in and got the same problem any tips/help would be appreciated.

Poncherello 06-03-2020 08:22 AM

It's a bad coil on #3. I got the same error last summer/fall. Under hard acceleration at first then progressively got worse. Came up drivetrain malfunction error. When I checked the codes I had a misfire of #3 and #7. I was about 10-15K miles over due for spark plugs at that time. I replaced the spark plugs and all the coils myself and no issues again. I would suggest replacing all the coils just because when one goes bad others will as well.

BMW wanted about $1500 for that job. My mechanic wanted almost $1100 for that job. I bought everything on RMEuropean for $265 including overnight shipping. Took me about an hour or hour and a half to do the whole job.

isstatu1 06-03-2020 08:53 AM

Swap cylinder 3 coil with cylinder 4 or any other and see if the error moves along. Then you'll know it's a bad coil.

HerbP 06-04-2020 07:29 PM

Swap the COP to a different cylinder, & see if the problem follows the COP. Misfires can be caused by a bad spark plug, a bad COP, or a bad fuel injector. If the problems is caused by the fuel injector, there should be a goodwill replacement on it. Call BMWNA & ask them if you injector would be covered at no charge.

All times are GMT -7. The time now is 07:30 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
© 2001- VerticalScope Inc. All rights reserved.