Mercedes-Benz 300SL Repair and Maintenance

A guide to problems, costs, maintenance and repair for your Mercedes-Benz 300SL

Repair Estimates

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Mercedes-Benz 300SL
$118 to $214
Mercedes-Benz 300SL
$236 to $371
Mercedes-Benz 300SL
$94 to $155
Mercedes-Benz 300SL
$145 to $228
Mercedes-Benz 300SL
$409 to $1,115

Related Content

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.

See More Problems 29

was running great parked for a week would not start. replaced distributor cap and rotor, cam and crank position sensors. ecm and ezl checked all fuses has correct fuel pressure showed code for oxygen sensor which was also replaced along with ignition switch. mechanic has gave up on vehicle

The meters are going up and down sometimes. Eventually it may brake down completely some workshop guy told me.
Any tips for what to do? Is he right? What will be the price for a new or used one?

See More Questions 73

1) the electrical wire issue. Basically this makes the car a rolling wreck with it only a matter of time before they short out and your entire computer system and or EZL explodes...anyone out there care to guess how much that would cost (an EZL for this particular car is extremely expensive) I was told that the insullation was designed to be GREEN and biodegrade...which is why it falls apart......

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.

Nice car but does have a number of issues after 20+ years. There is a wealth of information and help on the MB forums. The bad "green" wires came in 1994 for a few years. And, EZL's do NOT explode. (Where does this stuff come from?)

See More Reviews 8