1990 Mercedes-Benz 300CE Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 300CE
- Insulation Degrades on Engine Wiring Harness and Leaves Conductors Exposed
- Worn seat springs/padding may cause lean or sag
- Engine Problems Due to Distributor Cap and Rotor, Bad Ignition Wires, or Valve Cover Gasket Leaks
- Repair Leaks From Head Gasket/Timing Cover Gasket Before Oil and Coolant Intermix
- Service Cooling System on Older Vehicles Even if Mileage is Low
1990 Mercedes-Benz 300CE Problems
The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.
A rough running motor or lack of power can be caused by a failed distributor cap or rotor, ignition wires (or their resistors), or valve cover gasket leaks. If the valve cover gasket leaks, oil can pool where the ignition wire resistor connects to the spark plug. The resistor can fail and the spark plug may not fire because of a short circuit through the oil.
1990 Mercedes-Benz 300CE Questions
vehicle has a hard or no shift from 1st to 2nd when cold but will shift normal once warmed up
i replaced the crank sensor (front) still have the same problem
Just bought starter whats the next thing it wont even turn over wont crank put key in everything comes on i hear fuel pump kick in im lost