1992 Mercedes-Benz 300SD Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1992 Mercedes-Benz 300SD
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1992 Mercedes-Benz 300SD ProblemsInsulation Degrades on Engine Wiring Harness and Leaves Conductors Exposed
The engine wiring can degrade because the insulating material falls off leaving the bare wire exposed. This can cause many problems depending on which wires are exposed and what they touch.
Problems with the pneumatic system can cause closing assist and door lock issues.
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.
1992 Mercedes-Benz 300SD QuestionsHow to remove Auxiliary fan assembly and fan blades in Mercedes 1992 300SD (1 answer)
Problems to remove the auxiliary.
when i put the car in reverse the engine revs up and jerks in to reverse. also the ac or heat wnt blow out the vents