BenzWorld Junior Member
Date registered: Jan 2007
Vehicle: 1966 300se coupe
Location: Baltimore, MD, USA
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If you have factory or dealer installed A/C then you have a hydraulic clutch. No A/C, then it's electric, as mercmad posted above. Viewed from the front of the car, the hydraulic unit has a metal and black rubber oil line that comes up behind it and curves to right, and connects to metal cylinder right behind the belt for the air compressor. This is the thermostat which also has coolant lines connected to it.
If the fan isn't engaged by the time the engine reaches 180F then I would guess the thermostat is sticking and needs to be cleaned out. The only thing that can go wrong with the clutch itself is that the seals leak and it sprays a fine mist of oil all over the front of the engine. I've had to rebuild mine because of this.
Oh, now that you got it running, make sure you use a lead additive in the gas! If you car actually has only 67,000 miles on it then you probably have the original valves and guides, which deteriorate quickly on unleaded. If you read my latest post then you know you don't want to have to do a valve job on this engine.
Last edited by baltobenz; 10-26-2007 at 09:10 AM.