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1991 Mercedes-Benz 300E 4MATIC Repair and Maintenance Costs

A guide to repairs, service, and maintenance costs for your 1991 Mercedes-Benz 300E 4MATIC

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1991 Mercedes-Benz 300E 4MATIC Problems

Electrical 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.

Engine Oil and Coolant Leaks Resulting in Fulid Intermix

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.

Transmission Oil Seals May Leak on High Mileage Vehicles

High mileage vehicles may develop a leak from one or more of the transmission oil seals.

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1991 Mercedes-Benz 300E 4MATIC Questions

Why is my transmission fluid reservoir not able to hold or maintain any fluid? (2 answers)

After filling with trans fluid, I start engine, begin to drive and notice a great deal of smoke coming out of the exhaust pipes. After 10 minutes of the burning smoke, I turn the engine off and measure the transmission dipstick. It measures empty. This problem has been happening with regularity. ...

does anyone know what my temperature gage is suppose to rage around (1 answer)

Gage temperature suppose to be before it starts overheatin

path of the serpentine belt (1 answer)

I cannot seem to figure out the path to re-intall belt.

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