Huge water loss

[teedeeeye]

Hi,04 Passat highline estate,218,000 miles.I checked my expansion tank ,it looked low so i topped it up,it took 2 litres of water.Next day i checked it again after my blowers were blowing cold air,when they were set to max,it seemed low again, so i drove home to get some water,soon as i drove off the heaters went hot again,but when i got home five minutes later,it took another two and a half litres of water.There are no obvious signs of a leak,no water in the oil or vice versa,any ideas?

[Sam]

Remove the bellypan/skidplate/underenginecover/whateveryouwanttocallit and see if you can see any signs of coolant and/or water.

[phil miller]

as Sam has said look for a leak, the amount of water you are losing you should be able to see a leak, if not get it pressure tested at a garage mate

[martin1810]

Usually the bottom corners of the radiator rot. You may not see alot of water because it evaporates.

[teedeeeye]

Thank,s for your reply,that is exactly what happened.I now have a new radiator supplied and fitted for £92.00 plus the dreaded V A T