1990 Mercedes-Benz 350SDL Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 350SDL
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1990 Mercedes-Benz 350SDL 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.
1990 Mercedes-Benz 350SDL Questionsfuel pump leaking (1 answer)
fuel pump on left side of engine has a leak
The pump is off the engine.