I have to replace the antifreeze in my SL500. Can anyone help me with the procedure. ie. drain plugs and how to flush the block and radiator. thanks

 

it should be an easy thing, on the bottom right hand (passenger side) facing the floor is the nut that will allow you to empty the radiator, just open it and once done, refill it with one of the preston radiator flush (you can find it at any auto part) and water, run the engine for a little while (about 15-20 minutes) and empty the raditor again, once this is done, just refill back whith 50% water - 50% antifreeze. If you are on a hot location (ie. florida) I also recommend a product called water wetter (you can buy it on any auto part too, do a search on the internet for info), it helps with the tempature, mine was running on the 110-118 degrees, and after adding the water wetter it does not go above 80 degrees (90 on an 100 degrees day), good product.