1990 Mercedes-Benz 300E Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 300E
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1990 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.
1990 Mercedes-Benz 300E QuestionsLow beams not working? (1 answer)
Starts with some delay initially and has stalled on highway when traffic ls moving slowly or at a stop and go condition