freeze plugs

[po7553]

Could anyone please tell me or show me a diagram of where the freeze plugs are on a 1992 300 sl .I am leaking coolant.Im hoping it is from the water pump but as far as I can see it is dry.The coolant seems to be dripping from the oil pan gasket so it must be coming from above on the drivers side of the engine it looks like the vicinity of the water pump but I cant see up in there from undrneath.I have a new water pump coming so I will try to replace that anyway since engine seems to be running extra hot in traffic.But I wanted to check the freeze plugs also seeing the car has 219,000 miles on it.Thanks for any help you can give me. Peter