PeachParts Mercedes-Benz Forum - View Single Post

LUVMBDiesels · #9 04-12-2009, 12:31 AM

Quote:

Originally Posted by snookwhaler

Just replace the thermostat no holes needed. Just be sure your fan clutch is in good shape, use the "correct" coolant and you should be fine.

Be sure to drain the old coolant out of the block (on pass. side engine). Be careful with the drain on the bottom of the radiator. It is plastic and breaks easily.

I don't bother with the drain. I just take the hose clamp off the small reservoir hose and yank it to drain the radiator.

If you want to build a cheap reverse flush kit get some 1/4 galvanized pipe nipples a coupler a 90 degree elbow and about six feet of garden hose. You remove the block drain and screw in a 3 inch pipe nipple. Then screw on the elbow. Then screw on a longer nipple (4 to 6 inches). Take a piece of garden hose and clamp it to the last nipple. Then you can attach this hose to your normal garden hose turn on the water and watch the crap come out the lower radiator hose (which you pull off) I also put a valve on the end of the vertical pipe nipple with an additional 2 inch nipple to attach to the hose. This way I could flush, reattach the radiator hose and then fill the system then close the valve and run the engine for a while. Once the water is fairly clean, I leave the radiator hoses on and flush the whole system with the water coming out of the filler cap. I run the car this way for about 1/2 hour with the mono valve unplugged to get the water through the heater core. If you are changing the T-stat anyway, remove it but leave the gasket and put the cover back on. This way you can flush with the T-stat out as the cold water will prevent the thermostat from opening is it is in place...