1991 Mercedes-Benz 350SD Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Mercedes-Benz 350SD

1991 Mercedes-Benz 350SD Problems

Cracked Driveshaft Flex Discs May Cause Driveshaft Movement/Vibration

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.

Replace Brake Rotors When Pads are Worn and Squeaking

The brakes may begin to squeak at about the 50 percent wear point. This is due to the size and material used for the brake pads and rotors.  The brake rotor surfaces become uneven, causing a lip to form at the outer edge. This will generally require replacement of the rotors when the pads are worn (pad life varies depending on driving style and terrain).

Flush Brake Fluid Every Two Years

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.

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1991 Mercedes-Benz 350SD Questions

Hello I am liking to buy a lock pin tool and assembly basket for my 1991 350 SD (1 answer)

I get fuel to the injectors but this car was run on bio fuel and most of the injectors were bad and have been replaced, so I guess the pump needs cleaning too although it is not old, 6 months. best wishes to all.

car cranks great when cold,after warm you have to let set for a hour to crank. (1 answer)

glow plugs working right,turns over fast enough,

i put a/c on then fire started under hood ft driver side by brake fluid cont (1 answer)

it looked like a couple of wires why would the fire start there it was like under the brake fluild jug it was hard to see

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