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BMW M5 F90 (2018+) General Forums F90 M5 General Forum    Misfiring

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      09-01-2021, 11:39 AM   #1
Damzz
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Misfiring

I have a '19 M5C with about 21k miles on it. On 2 separate occasions, the car has misfired pretty badly on the highway without throwing error codes. I had the car on sports plus everything and all assistants off + RWD. Ive tried pushing it while misfiring to throw a code but tbh it's pretty scary so I pull over - Shut the car off for a few minutes, start it back up (the first occurrence it kept misfiring til I got to my destination and was fine the next day. Second occurrence , was fine after shutting it off for a few minutes). This does not happen when driving in the city with the same settings. I'm assuming it could be anything from a bad coil to fuel pump. Dealership is very busy and can't get in with a loaner until Sept. 13.

Has anyone else experienced this?
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      09-01-2021, 12:58 PM   #2
AngryInch
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Check the spark plugs, your plugs are probably fouled up.
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