1991 Mercedes-Benz 300SL Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Mercedes-Benz 300SL
- Hard/Soft Tops May Develop Problems Due to Age
- Repair Leaks From Head Gasket/Timing Cover Gasket Before Oil and Coolant Intermix
- High Usage Vehicles May Experience Ignition Lock and Tumbler Failures
- Insulation Degrades on Engine Wiring Harness and Leaves Conductors Exposed
- Failure of EHA valve may cause fuel/engine problems
1991 Mercedes-Benz 300SL Problems
As vehicles age, various problems may develop with the hard and soft tops. If problems are encountered, it would be recommended to have a technician familiar with these tops perform the diagnoses.
Internal and External engine oil & coolant leaks can develop from the head gasket and/or timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix which can result in severe engine damage.
On high usage vehicles, the ignition lock may become difficult to turn due to wear of the ignition lock and tumblers. Replacement of the ignition lock cylinder will generally be required to correct this concern.
1991 Mercedes-Benz 300SL Questions
The light has been recent.
I had the front bumper replaced and now the oirginal temperature sensor that gives the outside temperature reading on the instrument cluster is dark. What are the steps in correcting this problem? Does the whole thing need to be replaced?
1991 Mercedes-Benz 300SL Reviews
my 1991 300 sl was experiencing symptoms of running fine when cold, and breaking up and stalling when engine got warm. changed crank sensor, no fix, still getting stuck on many occasions. car wold only start when it cooled off. thought it had to do with some kind of temperature sensor..changed fuel filter, and the problem went away. driven hundreds of miles trouble free now..car often sits for ...
air conditioner not cold blowing cool
My 1991 SL mercedes is a beautiful car. When it sits for a long period, once driven, it cuts off. The car will start after sitting a couple of hours. Restart car and drives fine.