1991 Mercedes-Benz 300E Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Mercedes-Benz 300E
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1991 Mercedes-Benz 300E ProblemsFailure of EHA valve may cause fuel/engine problems
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.
Leaks may develop from the differential seals and/or cover on older or high mileage vehicles. Our technicians recommend a complete reseal of the differential unit when these leaks are addressed.
1991 Mercedes-Benz 300E Questionshow to clean cruise control unit (1 answer)
cruise control wont maintain speed
my 91 300E seems to run good. I am concerned about the smell of gas . I am due for smog before Mar 8 this year. I am thinking maybe a clogged fuel filter or maybe a new one? I am not to keen when it comes to anything under the hood. I am female and just turned sixty so I could sure use a little h...