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.
Car Problem Reports
Mercedes-Benz 300CE Engine Problems Due to Distributor Cap and Rotor, Bad Ignition Wires, or Valve Cover Gasket Leaks
Mercedes-Benz 300CE Problem
6 Reports
Model Years Affected: 1990, 1991, 1992, 1993
Average Mileage: 225,000 mi (193,000 mi - 257,000 mi)
Verified
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Visitor, 1990 Mercedes-Benz 300CE, 257,000 mi
engine misses cracked distributor
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