Water Pump

[Monocle]

I was told at my last service that I needed to replace the water pump on my 220D. €500 all in. So, I had a look at it myself having said I'd get back to them about it. I saw a small leak coming out from the bottom of the pump. I decided that the gasket was the problem and ignored Lexus' advice thinking they were taking the easy option of replacing the whole lot and making a few quid!

Well I bought the gasket and tried to install at the weekend. Relatively easy job, just a serious pain taking the lower engine cover off. Took off the pump and realised that, yes, Lexus had been right all along. The pump was leaking where the shaft of the pulley enters the housing. So I had to put the whole thing back together and order a pump today. Serves me right I suppose!

The problem I had was that I couldn't find the cylinder block coolant drain coc k. It wasn't an issue as I let the coolant pour out freely when I removed the pump. Saved me 4-5 litres of coolant also as this amount remained in the system. Can anyone decribe where this is located? I have to do the full job again this weekend when I get the pump.

Thanks!