GolfGTIforum.co.uk
Model specific boards => Golf mk4 => Topic started by: gavgtiturbo on 30 December 2011, 15:42
-
As titled my heater is blowing cold air and sometimes warm (mostly cold).
Checked the water pump today by taking the top hose off the expasion tank with engine running and got a steady flow of water back to the tank(if i rev the flow is stronger).
The bottom hose from the thermostat to the rad is getting hot when the thermostat opens and top hose to the rad is getting hot as normal.(thermostat is 3 months old).
The 2 pipes that go through the bulk head to the heater matrix are hot.
The pollen filter is new.
Theres no temp issues at all(stays at 90)
There is no water in the front carpets(so i dont think the matrix has gone).
When the heater is on and i push the buttons to direct the air flow from say floor to windscrean it doesnt seem to do much. Any one got any ideas ???? its a 1.8t agu :cry: :cry: if i dont sort this soon im just going to break it as im at a loss.
-
sounds like your climate control unit isnt working
-
Does the blower work on 1 2 3 and 4 ?
-
Does the blower work on 1 2 3 and 4 ?
Yes it gets faster all the buttons when pressed display on the little screen what you press,thaught it was an air lock, but flushed the system and nothing :angry:
-
Well that rules out water gettin in thru pollen filter housing and shorting things out . Heater matrix ?
-
Faulty climate unit not turning up the temp as it should? :undecided:
-
Hmm maybe rich.
Myt b worth a trip to scrappy and ask if u can try a diff climate control unit . Just plug new one in and see if prob still persists if not then buy it LOL if not its bk to the drawing board
-
Hmm maybe rich.
Myt b worth a trip to scrappy and ask if u can try a diff climate control unit . Just plug new one in and see if prob still persists if not then buy it LOL if not its bk to the drawing board
or find some1 near u tht will let u use there unit see if that works :smiley:
-
Yep then you can rule that out
-
Im pretty sure its not the control unit as it goes hot sometimes and then starts blowing cold,if it was this it would more than likely be stuck on one setting.
-
Heater flap motors or popped off linkages if it not doing much from what you say it could be a good possibility
-
Think its sorted it now,just used coolent flush and put a new temp sender on and all seems fine :smiley:.
-
temp sender lol they a pain