Problem Reports

Mercedes-Benz ML500

Report: Spark plug wires causing misfire

• Problem With Ball Joints May Cause Creaking Noise
  A problem with the ball joints can cause a creaking noise. There is an updated part to remedy t...

  Common Problems > Mercedes-Benz ML500

• Worn spark plug wires may develop micro cracks in insulation
  ...heat cycling, they start to develop micro cracks in the insulation around the resistors, which causes misfires and poor fuel economy.

  Common Problems > Mercedes-Benz ML500

• Wire Connector on Transmission May Leak Fluid and Damage Control Module
  The electrical connector at the automatic transmission may leak fluid into the wiring harness. If not repaired, the oil will migrate through the wiring harness and damage the transmission contr...

  Common Problems > Mercedes-Benz ML500

• Plugged drains in HVAC system intake may cause dead battery
  After a heavy rain storm, the drains for the heating, ventilation and AC (HVAC) system intake c...

  Common Problems > Mercedes-Benz ML500

• Wire connector on the transmission leaks fluid into the wiring harness.
  Problem just began yesterday. I was at a stop light and when it turned green it felt like my car was in neutral fighting to eccelerate. It was laboring. I have noticed over the past week that th...

  Q&A > Mercedes-Benz > 2003 Mercedes-Benz ML500