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Model specific boards => Golf mk2 => Topic started by: Mk2Kezza on 11 October 2005, 14:14

Title: strange Heater problem
Post by: Mk2Kezza on 11 October 2005, 14:14: Right here goes!
My Mk2 Golf GTi Heater doesn't blow warm air when the engine is up to temperature, just cold. However when you start the engine from cold, within a minute or two, warm/hot air comes from the heater, but only until the engine warms to running temp whereby it goes cold again!
Any suggestions would be much appreciated as its getting colder and damper in my motor!!
Title: Re: strange Heater problem
Post by: 16vbanger on 11 October 2005, 14:24: that will be the valves in the heater pipes buggerd as that's how they go warm air till the engine gets hotÃƒâ€šÃ‚Â :grin:

I'm 99% sure it's vw part no V191 819 911 A Ãƒâ€šÃ‚£26+vat
although I have read on here that vw cannot supply these my local dealer had them in stock :cool:
Title: Re: strange Heater problem
Post by: Mk2Kezza on 11 October 2005, 15:37: Thanks mate, i'll try that and keep you posted

Kez
Title: Re: strange Heater problem
Post by: Mk2Kezza on 11 October 2005, 18:35: Right, i've has a look in the Haynes manual, but it doesn't show whrereabouts the heater valves are located. Could you narrow down where i'm to look?!! :undecided:
Title: Re: strange Heater problem
Post by: 16vbanger on 11 October 2005, 18:47: on the heater pipes between the engine and the heater just below the coil one silvery alloy and one black plastic with a little pipe linking the two
Title: Re: strange Heater problem
Post by: rubjonny on 11 October 2005, 18:49: follow the coolant hose thats attached to the plastic flange on the RHS of the block, the pipe goes into the passenger compartment.
Title: Re: strange Heater problem
Post by: Mk2Kezza on 11 October 2005, 18:58: Thanks again lads, a bit late to look at it tonight so i'll have a mess about tomoz.
Ta.
Title: Re: strange Heater problem
Post by: Mr Blue on 11 October 2005, 19:04: when you find the valves bin them! there crap!
Title: Re: strange Heater problem
Post by: Mk2Kezza on 12 October 2005, 19:48: Job done,

Phoned my local VW and they wanted Ãƒâ€šÃ‚£33 all in for the valves but couldn't tell me when they would recieve it form Germany, as that part is difficult to get hold of. However went to my local scrappy and picked one up for a fiver - more like it!!
The heater now works a treat! Needed it today too cos of the bloody weather.

Thanks lads - this site is great!

P.s there are a few other niggles to iron out so i'll be back on here soon enough!
Title: Re: strange Heater problem
Post by: Organisys on 12 October 2005, 21:18: It may just be an airlock mate.

Remove the coolant header tank and run the car from cold until the coolant starts to boil, then stop engine immediately.
You should see bubbles coming up through the tank.
Massage the coolant all the hoses while you do this, especially two about 1 inch diameter, top right of the engine bay, these are the ones that pass to the heater matrix.
Also, rev the car a little to get the coolant pumping around.
Then wait for car to cool, top up coolant if needed, then replace cap.
Title: Re: strange Heater problem
Post by: Mk2Kezza on 26 October 2005, 11:59: Ok, update.

I changed the Heater bypass valve and had hot air for a week. But now its back to warm air until the engine gets up to temp - So? I am right in thinking that the heater bypass valve has gone again?! If it was the heater matrix then I wouldn't have any hot air at all right?
Title: Re: strange Heater problem
Post by: Organisys on 26 October 2005, 12:11: Try my previous instructions on removing air locks.
Title: Re: strange Heater problem
Post by: rubjonny on 26 October 2005, 13:38: Sounds like the valves have packed up again, buy a new pair of uncut heater hoses for about Ãƒâ€šÃ‚£20 from GSF and bin the valves completely!
Title: Re: strange Heater problem
Post by: Rain on 26 October 2005, 14:35: Quote from: Mk2Kezza on 26 October 2005, 11:59
Ok, update.

I changed the Heater bypass valve and had hot air for a week. But now its back to warm air until the engine gets up to temp - So? I am right in thinking that the heater bypass valve has gone again?! If it was the heater matrix then I wouldn't have any hot air at all right?

that sounds normal to me warm then hot when at running temp.
Title: Re: strange Heater problem
Post by: Mk2Kezza on 31 October 2005, 19:33: Right, I have done what Organisys suggested and knocked the valves on the head completely! Went to my local motor factor and bought a metre of hose for Ãƒâ€šÃ‚£1.20. Replaced the valves with the hose and hey presto, sitting in the car is like sitting in Hawaii! Nice. I'm not sure how faulty the heater matrix are in the A2S but I'm hoping that I don't get scalded! A small price to pay to have heat!! :smiley:
Title: Re: strange Heater problem
Post by: Judderi on 03 November 2005, 15:59: If it does blow then replace it for a stronger mk3 version.
Title: Re: strange Heater problem
Post by: Organisys on 03 November 2005, 21:58: Quote from: Mk2Kezza on 31 October 2005, 19:33
Right, I have done what Organisys suggested and knocked the valves on the head completely! Went to my local motor factor and bought a metre of hose for Ãƒâ€šÃ‚£1.20. Replaced the valves with the hose and hey presto, sitting in the car is like sitting in Hawaii! Nice. I'm not sure how faulty the heater matrix are in the A2S but I'm hoping that I don't get scalded! A small price to pay to have heat!! :smiley:

It was blue who suggested it, but mine have been removed as well, and it does help alot. Still get airlocks every once in a while though.