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View Full Version : why is my golf gt tdi 115 overheating


lbates70
09-04-2008, 02:38 PM
hi all,

i have a golf gt tdi 115 bhp on a 2001 "y". i have recently been experiencing problems with the car over heating and the climate control blowing cold when it is set to hot.

i have noticed the car only overheats when u drive it hard using the turbo through the gears or when going over about 90 - 100

i have tried putting a new thermostat in and doesnt seem to have resolved the problem

has any1 got any ideas wot it could be or have u had this problem????

thanks alot
Col
09-04-2008, 05:57 PM
Two main causes;

1, Faulty water pump, the impellor slips on the shaft resulting in a pump that does not pump.

2, Head gasket failure.


Neither are a cheap fix I'm afraid.
v6dub
09-04-2008, 10:53 PM
Hello mate. When was the last time it had a cam belt change. Because the water pump should have been changed then. If it was a long time ago then as the chap said above it could be the pump. Are you sure that it is not just a broken sensor saying that it is over heating. Have you draned and flushed the coolant system to make sure you do not have a blockage. Hope this is of some help.
lbates70
09-04-2008, 11:47 PM
Hello mate. When was the last time it had a cam belt change. Because the water pump should have been changed then. If it was a long time ago then as the chap said above it could be the pump. Are you sure that it is not just a broken sensor saying that it is over heating. Have you draned and flushed the coolant system to make sure you do not have a blockage. Hope this is of some help.


thanks for all the replies, i haven't a clue when it was last done, cant find in history.
i havent tried draining the cooling system that is something i will try,

i've been quoted £160 to change water pump by my local specialist,

how much is a head gasket worst case senario????
v6dub
10-04-2008, 08:45 AM
£160 for a water pump change is really good, put a new cambelt kit on at the same time. When you put a new water pump in you will have to repalce the coolent.
lbates70
10-04-2008, 03:14 PM
£160 for a water pump change is really good, put a new cambelt kit on at the same time. When you put a new water pump in you will have to repalce the coolent.

ok thanks i will let u know the outcome
tahir98
31-03-2009, 02:07 PM
HI
got the same problem as yours, when it was over heating was it loosing water? and did the new water pump fix the problem?
Thanks