2004 Mercedes-Benz ML500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2004 Mercedes-Benz ML500

2004 Mercedes-Benz ML500 Problems

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

The power steering return hose may leak at the radiator cooler fitting. If the clamp is not properly tightened, the hose can blow off, causing increased steering effort and a mess under the hood.

It is not uncommon for the power steering rack to develop a fluid leak requiring replacement of the rack assembly. Loss of power steering fluid may also cause an abnormal noise and damage to the power steering pump.

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2004 Mercedes-Benz ML500 Questions

I have a 2004 ML500 and when I try to lock the doors the right rear door lock activates 3 - 4 times but doesn't lock.

The radiator light is on, the ac is not blowing cool air, and it's running a bit hot. The fan isn't circulating ( unless I'm on the freeway).

The car (ML 55 amg) will cold start without any problem, after 5min driving it then cuts out and will not start before 10m has expired. It started doing this only every now and then, the intervals have become shorter, I now can only start the car and cuts out after 2min.

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2004 Mercedes-Benz ML500 Recalls

MERCEDES-BENZ IS RECALLING 125,228 MY 1998-2004 M-CLASS VEHICLES. THE HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE POWER STEERING FLUID COOLER MAY NOT PROVIDE SUFFICIENT CLAMPING FORCE FOR THIS CONNECTION.

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