it is running really rough, almost stalling
25

Asked by betty1benz Jun 10, 2007 at 05:10 PM about the 2000 Mercedes-Benz M-Class ML 320 4MATIC

Question type: Maintenance & Repair

my ml320, 2000 suv is running really rough and it does not stall, but it will not go over 65 mph

3 Answers

lightGear answered 17 years ago

Check the fuel pump and the fuel pump regulator. Those would be the first things I would check. Does it run really rough the faster you go?

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omegaman99 answered 17 years ago

If you have over 100k miles and havn't changed the spark plugs, will damage wires also. If you've had a check engine light on for months but ignored it could be mass air flow meter, ignition coils will go bad(gives a constant misfire) have checked by a shop before it damages expensive(Catalytic conv.,engine) parts

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Robert answered 17 years ago

Also check your fuel filter. If it's still the original, it's probably almost completely blocked.

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