C8 Topping Water Up

[rich5315]

Hi all i bought 2.2 hdi C8 on an 05 plate had it 18 months all fine but noticed ive had to start topping the header tank up more often it is the warning comes on the dash. it takes about 1 litre of water from minimum to max on the header tank, im doing this every 10/14 days. its got worse as time has gone by. Im having it pressure checked next week but theres no leek underneath, or wet anywhere, nothing apparent in the exhuast outlet, the oil is fine nothing brown in there, is this normal for this vehicle? its done 130K miles. I do drive the car quite hard and generally do about 200 miles a week

[Simple]

No, it is not normal. There may be a small leakage in the form of steam from the radiator, one of the hoses, the water pump or the tank cover itself. 

[rich5315]

thanks we will have to see if they find anything when it pressurised and tested :-)

[paul.h]

Did the pressure test find anything, we are all in suspense waiting to know ?