1990 Mercedes-Benz 420SEL Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Mercedes-Benz 420SEL

1990 Mercedes-Benz 420SEL Problems

AC hoses may leak

A refrigerant leak may develop from one or more of the AC hoses. Proper leak detection procedures should be followed if refrigerant loss in encountered. Replacement of any leaking hoses will we required to restore proper AC operation.

Blend Doors in HVAC May Stop Working Due to Bad Vacuum Actuators

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.

"No start" Caused by Failed Fuel Pump/Relay

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.

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1990 Mercedes-Benz 420SEL Reviews

what other automobile would you even consider that has 150k miles and still cost $5k or better..and get a consistent thumbs up!

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