1990 Mercedes-Benz 300E 4MATIC Repair and Maintenance Costs
A guide to repairs, service, and maintenance costs for your 1990 Mercedes-Benz 300E 4MATIC
Never overpay. Check prices with our estimator
Verified by mechanics, reported by drivers like you
1990 Mercedes-Benz 300E 4MATIC ProblemsElectrical Issues Due to Degraded Engine Wiring Harness
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.
Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.
High mileage vehicles may develop a leak from one or more of the transmission oil seals.
1990 Mercedes-Benz 300E 4MATIC QuestionsMuffler wont stay up on car (1 answer)
have taken car back to shop about 10 times they keep putting new clamps on muffler but it will only hold it up for a short time i think its the wrong muffler but they say not