Engine Coolant Temperature Sensor location

[one1ove]

I can't find this fucking thing to save my life... I looked at the guide which shows the general locations, but still cant find it.. anyone can help me with a specific description? thanks

[BryanR]

If we're talking Audi 1.8T here, it's at the back of the cyl head, close to the firewall, under the PVC/Pump/Muffler doo-dad. It's hard to see and a bit of a bitch to get too. Be sure the car is cool too and there is no pressure in the coolant bottle...