Explore Your 1990 Mercedes-Benz 350SDL

A guide to problems, costs, maintenance and repair for the 1990 Mercedes-Benz 350SDL

1990 Mercedes-Benz 350SDL Problems

Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.

Fuel leaks can develop around the high pressure fuel injection pump.

The instrument cluster, along with the turn signal and wiper combination switch, can fail.

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1990 Mercedes-Benz 350SDL Questions

The pump is off the engine.

The problem happens after driving at higway speeds for apbout a hour then the transmission will downshift onto lower gears and will not go back into 4th

Is there an access panel under the mat in the trunk?

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