Engine Cutting at 6,500RPM

JohnZP · 03-03-2021, 06:01 PM

Hi guys, whats up? I have been having a problem with my '15 F10 M5, since i got the catless downpipes, the engine starts to stumble at about 6,500rpm (3+ gear), it looks like a rev limit, if i continue to floor for about 2 secs the engine lost all the power and i got the drivetrain error message. Any thoughts?

I already changed the spark plugs and checked the coils.
(Sorry for my bad english, i tried my best

)

M5_Raz · 03-03-2021, 07:15 PM

I had a similar problem after getting my downpipes. After weeks of diagnosing at various shops, it turned out to be a loose DME connection that was causing the wire to come unplugged when accelerating hard after 4K rpm.

Make sure everything is plugged in tightly and that the DME ground wire is tightly secured with the nut.

03-03-2021, 06:01 PM	#1
JohnZP Registered 0 Rep 1 Posts Drives: '15 LCI F10 M5 Join Date: Jan 2021 Location: Brazil iTrader: (0)	Engine Cutting at 6,500RPM Hi guys, whats up? I have been having a problem with my '15 F10 M5, since i got the catless downpipes, the engine starts to stumble at about 6,500rpm (3+ gear), it looks like a rev limit, if i continue to floor for about 2 secs the engine lost all the power and i got the drivetrain error message. Any thoughts? I already changed the spark plugs and checked the coils. (Sorry for my bad english, i tried my best )
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03-03-2021, 07:15 PM	#2
M5_Raz Lieutenant 514 Rep 538 Posts Drives: BMW M5 Join Date: Aug 2020 Location: Bay Area, California iTrader: (0)	I had a similar problem after getting my downpipes. After weeks of diagnosing at various shops, it turned out to be a loose DME connection that was causing the wire to come unplugged when accelerating hard after 4K rpm. Make sure everything is plugged in tightly and that the DME ground wire is tightly secured with the nut.
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