Stueymac
Member
Registered: 7th Dec 03
Location: Deeside, North Wales
User status: Offline
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I not long had a new head gasket fitted and evr since my heaters never go warm? I've checked all the pipes are attached and theres water but I can think what else it could be? b4 I changed the gasket there was loads of mingy orange gunk in the water tank and i'm thinking it may be this? do you think the pipes are blocked or is my heater just buggered?? opions please
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Icy
Member
Registered: 31st Jan 01
Location: Edinburgh Drives: Mk3 Golf Gti
User status: Offline
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what about your heater matrix thingy
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Stueymac
Member
Registered: 7th Dec 03
Location: Deeside, North Wales
User status: Offline
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Is that behind the dash? my heaters work, they just don't get hot, they blow out warmish air, not very warm though, usually freeze to death on the way to work.
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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thermostat failed open.
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Jonster
Member
Registered: 17th Oct 03
Location: Chester.... Drives: Clio Sport 16v.. XBL: Jono2445
User status: Offline
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quote:
Originally posted by miles
thermostat failed open.
are these hard to change on a 16v engine?
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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Nope. Just take the top rad hose off, undo the 3 bolts and swap it iirc.
Check if the header tank gets warm gradually, as the rest of the engine does, or if the rest of the engine gets hot with the header tank still being cold.
If its cold then gets hot after the rest of the engine is getting very hot then the thermostat is fine.
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Icy
Member
Registered: 31st Jan 01
Location: Edinburgh Drives: Mk3 Golf Gti
User status: Offline
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thermostat!
thats it
thats wat packed in in mine
durin winter was feckin cold
windows always fogged up n couldnt get it away coz no heat
arent dear got mine changed 
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Jonster
Member
Registered: 17th Oct 03
Location: Chester.... Drives: Clio Sport 16v.. XBL: Jono2445
User status: Offline
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nice one mate. will check it in the week. if it needs replacing, do I need a vaux one or can i get a patern one from halfords etc. any idea how much they are?
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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About £60 from vaux as they only sell them with the housing.
I got a motor factor one for about £6.
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Icy
Member
Registered: 31st Jan 01
Location: Edinburgh Drives: Mk3 Golf Gti
User status: Offline
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was gona say about £6 too but forgot if that was for somethin else i bought 
tried to/asked how to change on here but has to flush the system etc am like  lol
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miles
Member
Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
User status: Offline
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You dont have to flush the system, just top it up and run it at idle til very hot with the header tank cap off and heaters on. You wont loose much water from there as its at the top of the engine.
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Icy
Member
Registered: 31st Jan 01
Location: Edinburgh Drives: Mk3 Golf Gti
User status: Offline
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ah too late anyways lol
took it to a garage back then
was glad i got my heat back
but............ the wire attached to the heater nob snapped so was permanently at hot n couldnt turn it down 
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Stueymac
Member
Registered: 7th Dec 03
Location: Deeside, North Wales
User status: Offline
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cheers ppl, thermostat it is then!!
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greengoddess
Member
Registered: 17th Jun 03
Location: Northern Ireland, formerly Enfield North London
User status: Offline
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u might have an airlock in the heater matrix. When refilling your your coolant from empty u should always put the heater to hot so as when u refill with water it goes to the matrix as well, and u dont get any trapped air there.
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