2003 Mercedes-Benz ML350 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Mercedes-Benz ML350

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

The camshaft adjuster solenoid (which is related to the variable valve timing system) may fail or timing chain/balance shaft components may wear, resulting in illumination of the Check Engine Light and various drivability issues. Mercedes-Benz has released a service bulletin outlining specific repair instructions depending on fault codes stored.

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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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. 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.

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Very expensive car to own. All repairs cost double what you would expect to pay. Brakes go quickly (every 10k-15k miles). My AC compressor required replacement at 75k. Ridiculous engineering jacks up repair cost. For example, my REAR seatbelt sensor went out, which meant that the FRONT passenger airbag would not function. Tell me why those are tied together? Another example: a broken w...

i bought 2003 ml 350 brand new. here is story. 145k miles and 6 time brake pads change and 3 times rotors. brake only last 25k miles. rear drive shaft worn out and replaced.. head gasket leaks. in past leaky pwr steering pump leaked and replace. again once pwr steering columb totaly replaced. wind shield pump out of order. very costly repair. Compare to brand new 2005 lexus es. brake job do...

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