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[M16]

This is my first real question on here. My 2.5 v6 elite is losing water, and I mean a lot of it. It started about 3 weeks ago so while it was in getting cambelts done I had them check it and they said the water pump was goosed so I got it changed. I am still losing water (about 12 litres in 2 weeks) but there is no sign. I have checked all the pipes and anywhere else I can think of. There is no evidence of it getting in to the oil (No Mayo). I'm starting to thing I am going mad. Anyone got any ideas?

[iainb]

Any pudles underneath the car when left for a time ?
If not you have a pressure leak so look around the engine bay and post up when you find a wet area,my guess is one of the heater pipes or the HBV.

[M16]

cheers. I'll have a go at making one of those pressure tester caps i saw on here and let you know. I haven't seen any puddles so could be pressure. I'll let you know.

[Entwood]

You can also lose water through the header tank cap if the seal is buggered ... the system doesn't pressurise properly and the water evaporates at a high rate .. I know .. spent weeks trying to find a non-existent leak ..

[iainb]

Before making the pressure tester try:
With the engine running get someone try adjust the heater from hot to cold several times while you check the HBV for a leak.
The HBV is at the back of the engine on the right hand side on the V6

[bighed]

Before making the pressure tester try:
With the engine running get someone try adjust the heater from hot to cold several times while you check the HBV for a leak.
The HBV is at the back of the engine on the right hand side on the V6

I thought it was at the back on left. Well thats where mine is anyway  :-/

[Andy B]

Before making the pressure tester try:
With the engine running get someone try adjust the heater from hot to cold several times while you check the HBV for a leak.
The HBV is at the back of the engine on the right hand side on the V6

I thought it was at the back on left. Well thats where mine is anyway  :-/

Ian is using the standard left/right ie as you're sat in the car. Your left is as you're standing infront of the car      8-)

[bighed]

 

[M16]

cheers guys. I will be giving all your ideas a try.