5kcstq loosing water?

[Huw Powell]

> I am having a small problem with my 5kcstq, it seems to be loosing
> coolant, lately about every 2 weeks I get the low coolant light, and
> have to top it off(about half the tank). I have checked most of the
> coolant hoses and have not found any rips or tears, My thought is that I
> have a pin hole leak in one of the coolant lines? Or my headgasket is
> leaking?

If your engine is clean, you can often see the residue of things like
coolant leaks as a greenish or bluish crusty deposit.

It's tougher if it's not...

One likely suspect is the multifunction temp sender, usually in the top
coolant hose flange.  The sender itself can leak, and its boot can hold 
at dispense the leakage as it sees fit, making it harder to see.  I
pulled mine the other day due to an erroneous coolant OBD warning - the
boot was full of pretty blue coolant.

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/