2003 Mercedes-Benz ML320 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz ML320

2003 Mercedes-Benz ML320 Problems

Replace air filter when replacing failed mass air flow sensor

The mass air flow (MAF) sensor tends to fail. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

"No Start" Due to Drive Authorization's Failure to Recongnize Keys

A no start condition may develop due to an anti-theft system fault. If the drive authorization module fails to recognize the keys, the engine will not start. In many cases, a new module and keys will be needed to correct this problem.

AC System Leaks/Bad Temperature Sensors May Cause Poor Cooling

AC system leaks and/or a faulty evaporator temperature sensor can cause poor AC cooling. The failed sensor can prevent the AC compressor from coming on. Leaks cause a low refrigerant level, which reduces the ability to cool.

See More Problems (28)

2003 Mercedes-Benz ML320 Questions

Car stops on highways! ..driving about 30min over 40-50 mil/hr and transmission (1 answer)

Car stops on highways!
Sorry for my English ! :)
..driving about 30min over 40-50 mil/hr and transmission gets "disconnected from engine". stop on side of the road. tiptronic doesn't work. On slope parking position doesn't hold a car !
Was towed few times ! As soon as you get...

when I took mercedes-benz ml320 2003 to emissions test ,it failed emissions test (1 answer)

I HAVE MERCEDES BENZ ML 320 2003. How long will it take computer to kick in afte (2 answers)

See More Questions (33)

2003 Mercedes-Benz ML320 Recalls

Recall 08V465000
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.
Recall 03V121000
ON CERTAIN PASSENGER 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.

See More Recalls (2)

2003 Mercedes-Benz ML320 Reviews

I have mercedes ml 320 2003 . i have problem while i drive the car the car lost the power i mean when i push down the gas pedal nothing happens its take about 3 to 5 second to get the power again, the problem come once or twise aweek. I send the car to the dealer and they did the diagnos and replace the first time the throttel pedal sensor, and i still have the same problem and the second time...
I love the car is strong and powerful but is a real pain, sensor go out shift control etc. Every other month look like a Christmas the dash board, no saying the brake switch the I have one on the glove box, I want to tell you the I had the has bean tow, and not only ones.

See More Reviews (2)