M Klasse Engine Running Rough Cylinder Misfire

Sounds familiar I had similar issues with my M Klasse Cylinder misfires can be tricky Did you check the condition of your spark plugs Also a faulty fuel injector can definitely cause that It might be worth checking the ignition coil as well Have you noticed any fuel smell

I haven't pulled the spark plugs yet that's probably my next step Is there an easy way to tell if a fuel injector is bad without taking everything apart And no I haven't noticed any fuel smell which I guess is a good thing

Without proper diagnostic tools it's tough to pinpoint a bad fuel injector Since you have misfires it's best to take it to a mechanic They can run proper tests I had a similar experience and it turned out to be a faulty fuel injector Cost me a bit to sort out but the engine runs smooth now

Took your advice and brought it to a workshop Turns out you were spot on it was indeed a defective fuel injector They replaced it and now the engine runs perfectly The final bill came to 515€ which included the injector and labor Thanks again for the help