1991 Mercedes-Benz 350SDL Problem Reports

Most Reported 1991 Mercedes-Benz 350SDL Problem Reports

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The instrument cluster, along with the turn signal and wiper combination switch, can fail.

Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.

On high mileage vehicles, rear spring wear may cause the rear end to sag.

As brake fluid becomes dirty over time, it can cause a failure of the anti-lock brake system (ABS) modulator assembly. Our technicians recommend a complete brake system flush every two years to help prevent this issue.

The expansion valve can get stuck and is difficult to replace.

The tie rod ends, idler arm, and/or drag link components of the steering linkage may wear prematurely. Please keep in mind the wheel alignment should be checked and adjusted when any of these items are replaced.

Oil leaks can develop around the oil filter housing.
Fuel leaks can develop around the high pressure fuel injection pump.

A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. If not repaired, damage to the driveshaft center support bearing, transmission, or differential can occur.

The fuel pump and/or fuel pump relay can fail, causing the car to crank over but not start. Proper diagnoses will be necessary to confirm if the pump or relay is at fault.

Other than a defective motor, a bad switch or blower motor resistor assembly can cause an inoperative heater blower motor.

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

 

The climate control system can fail or perform erratically due to internal problems with the climate control button electrical contacts. Replacement of the climate control assembly is commonly required to correct this problem.

A worn steering dampening shock can cause a fluid leak at the front of the vehicle. If a leak is noted from the dampening shock, our technicians tell us that it should be replaced.