1991 Mercedes-Benz 350SD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Mercedes-Benz 350SD
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
1991 Mercedes-Benz 350SD ProblemsCracked 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.
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).
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.
1991 Mercedes-Benz 350SD QuestionsHello 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.
glow plugs working right,turns over fast enough,
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