SL500 coolant drain plug?

[rjpeters98]

I planning to flush my cooling system (1994 SL500), but cannot find the engine drain plug(s). I've had the car up on ramps and checked the bottom and sides of the engine with no luck. Can anyone help me locate these little hummers?

[DR.DIESEL]

There is the petcock drain on the bottom of the radiator.
The block drains are pretty hard to see, but can be accessed.
They are on the l and r head under the exhaust manifolds aiming
down towards the ground. They look like nipples and have a
6mm allen socket in the center for loosening.
They are pretty much above the motor mount arms.
Good luck.
DR.D

[rjpeters98]

DR.D,
Thanks, your description really helps. I'll check it out tomorrow.