1991 Mercedes-Benz 350SD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Mercedes-Benz 350SD
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1991 Mercedes-Benz 350SD ProblemsPower steering hoses can develop leaks
Power steering hoses and components can develop leaks.
One or more blend door vacuum actuators may fail resulting in the incorrect output temperature from the HVAC system. Failed actuators will require replacement to restore proper HVAC operation.
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.
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