Does every m20 kind of rattle like a rock in a shoe box for maybe 1 second when you turn the key off? What’s the source of the noise?
1987 325e, coupe, 5speed
1989 325i, sedan, 5speed
The m20 can make a familer knocking noise I just cant remember when I would hear it
Ha ha ha, not all.
Not sure if your car has a dual mass flywheel but that rattle you describe is the classic symptom of one that has failed.
If you can leave two black stripes from the exit of one corner to the braking zone of the next, you have enough horsepower. - Mark Donohue
Could be your transmission making that noise. The flywheels on M20 cars are not that great at dampening rattle, and the Getrag transmissions are inherently quite noisy.
Does it happen if you turn off the car with the clutch pedal held down?
I’ll try it, thanks. It doesn’t sound bad, just something making noise when things stop turning, I think it only happens when everything is heat soaked from a long drive.
1987 325e, coupe, 5speed
1989 325i, sedan, 5speed
i have the same issue but it doesn't make that sound if the clutch is pushed in
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