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General => General discussion => Topic started by: stainesy on 31 January 2012, 18:14
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Anybody want to change my heater matrix in my bora for me? I will pay you to do it. Phones a couple of garages and non of them bothered getting back to me as think they can't be arssed with it. Anybody on here want to earn some cash and do it for me?
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on a bora :shocked: :shocked: thats not a small job!
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i changed my matrix when i had the vr6,this was a non aircon and it was a mother of a job to do.one guy charged me £350 to do it and i just thought feck it,gonna diy it,never again.i can help you out best i can,where bouts you mate?
c'mon guys,lets make this a forum day out and change this mans heater matrix.
Anthony
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Yeah it looks like a total Cnut of a job. Watched a video on YouTube of one being done on a mk4 golf wich is same as mine. Mine is air con aswell.
I just don't want to fcuk my car up by doing it wrong. Its a complete centre console and dash out job.
I'm in Dunstable.
Am willing to pay and help with the job for somebody to do it. May be able to muster up a couple of hundred notes in a couple of weeks. How much you recon they would charge at VW?
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I did one on a polo 6n and even that was a pain in the arse and i had help! Good luck dude :smiley:
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Bought one of them plug in car heaters that stuck to the dash today. It don't do sh!t. Total wast of £12 :rolleyes:
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As long as you Give yourself a full day, it's not that hard. Very time consuming and lots of awkwardness, but you are more than capable of doing it yourself mate. Just label any plugs that you pull out of the dash for reference when you put it back together. Also remember to bleed the cooling system afterwards. :smiley:
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i no what im like though. i will start to get the ars with it after a wile and start being abit heavy handed.
i will end up breaking things :grin:
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Mate take it on, record what you're doing, post it up in the maintence section :laugh:
Don't forget to take pictures of messed up hands to show us you actually did the job yourself fella :wink:
Luton is a bit far for me :sad:
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Yeah it looks like a total Cnut of a job. Watched a video on YouTube of one being done on a mk4 golf wich is same as mine. Mine is air con aswell.
I just don't want to fcuk my car up by doing it wrong. Its a complete centre console and dash out job.
I'm in Dunstable.
Am willing to pay and help with the job for somebody to do it. May be able to muster up a couple of hundred notes in a couple of weeks. How much you recon they would charge at VW?
You best bend over and lube up. . . .
Big job but doable. I wouldn't fancy doing it :lipsrsealed:
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i no thats why i aint gona do it myself. will just have to save and freeze till i can get it done.
i range 2 diferant local garages last week asking for a quote and they both said they was gona phone me back the same day with a price and none of them bothered :angry:
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Are you 100% sure it is the heater matrix :undecided:
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f*ck that. scrap it! :grin:
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Are you 100% sure it is the heater matrix :undecided:
Well what els could it be? Temp read bang on 90 all he time and don't take long to get up to temp.
Ran hosepipe through heater matrix pipes and it flows fine. Both pipe to and from the matrix get nice and hot. Had a good fiddle around inside the car and all the heater dials and switches seem to be working ok.
Plus if the heater is off for a wile then I turn it on. I get hot ish air come out but it fades back to cold as if it get hot ish but the blower is taking the heat from it and cooling it down to much. Wich tells me it's got hot water through it but for some reason it's not staying hot enough for the heat transfer.
What type of matrix is it? Is it just a coiled ish pipe that has fins on it? Or like somebody said in another thread is it a 2 chamber box type thingy? Anybody got a diagram of a cut in half one?
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Not really cut in half but gives you an idea
(http://img.photobucket.com/albums/v617/Lee81281/a521dfb5-630a-4f82-aa97-49678df751c0.jpg)
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Are you 100% sure it is the heater matrix :undecided:
Well what els could it be? Temp read bang on 90 all he time and don't take long to get up to temp.
Ran hosepipe through heater matrix pipes and it flows fine. Both pipe to and from the matrix get nice and hot. Had a good fiddle around inside the car and all the heater dials and switches seem to be working ok.
Plus if the heater is off for a wile then I turn it on. I get hot ish air come out but it fades back to cold as if it get hot ish but the blower is taking the heat from it and cooling it down to much. Wich tells me it's got hot water through it but for some reason it's not staying hot enough for the heat transfer.
What type of matrix is it? Is it just a coiled ish pipe that has fins on it? Or like somebody said in another thread is it a 2 chamber box type thingy? Anybody got a diagram of a cut in half one?
It sounds like the matrix is clogged.
Maybe try something like this?
http://www.ebay.co.uk/itm/Forte-Car-Cooling-Coolant-System-Flush-500ml-New-/140537366018?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item20b8ae0602
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How can it be clogged if I have run water through it ok?
What is inside the matrix? Is it just a pipe weaving left to right all the way down and back up with fins on it or does it have chambers?
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Its exactly like a mini front radiator. Just as you said it has cores snaking down then back up. I've still got my old one in the shed, give me a couple of hours and I'll put a pic up of it cut in half if you like.
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Yeah that wold be sweet mate as if it's just a single curly pipe with fins stuck on it it must be clogged as its not leaking. But if it has chambers then they could have colpapts inside. So the water can still flow but it don't get hot anymore. If you no what i mean. My coolant is a rusty water colour so I will give it a good flush this week as a last try.
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Try a PM to rubjonny he may know a shortcut.
Never done a VW but did a Pug 405 which everyone said was a full dash out job then got told if you take the glovebox out its dead easy!
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How can it be clogged if I have run water through it ok?
What is inside the matrix? Is it just a pipe weaving left to right all the way down and back up with fins on it or does it have chambers?
If the matrix is clogged internally it can still flow properly, but there won't be enough heat transfer.
This is what happened on my old polo, exactly the symptoms you describe, i removed it, flushed it, it flowed perfectly.
In the end a new matrix cured the problem. An easy job on an old polo though..
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So if it was a clogged matrix on your polo why didn't you flush it out?
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i think the cable has snapped that changes from hot to cold air
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So if it was a clogged matrix on your polo why didn't you flush it out?
I said i did flush it in my last post :grin:
Unfortunately it only made a slight improvement, so i replaced the matrix.
Easy job on a 1993 Polo.
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Right mate, here we have 1 x 21 year old heater matrix.
(http://i1236.photobucket.com/albums/ff441/seanlethaby/94d49051.jpg)
Here we have the end cap off, so you can see the waterways from the outside.
(http://i1236.photobucket.com/albums/ff441/seanlethaby/591343ed.jpg)
And here we have it sawn in half with a wood saw!
(http://i1236.photobucket.com/albums/ff441/seanlethaby/a6b25e07.jpg)
Crap pics with camera phone, but u get the idea. Here is a close up of the waterways.
(http://i1236.photobucket.com/albums/ff441/seanlethaby/f513cbc7.jpg)
As you may be able to see, every waterway has hard limescale blocking it the varying degrees. I flushed this through and did get water back out, and both pipes were hot. There just obviously wasn't enough in there through all the sh!te to ensure decent heat transfer.
Hope this helps mate. :smiley:
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Mate ou are a fcuking legand :grin:
I can't belive you actuly cut that in half to show me :grin: your a diamond geezer cheers fella.
So it realy is just a single pipe that goes up and down up and down up and down and up and back out. So it has to be a clogged matrix.
Ok great what do you guys recon I should try on this then?
Coolant flush? Lime scale remover? Jet wash through it?
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Mate ou are a fcuking legand :grin:
I can't belive you actuly cut that in half to show me :grin: your a diamond geezer cheers fella.
So it realy is just a single pipe that goes up and down up and down up and down and up and back out. So it has to be a clogged matrix.
Ok great what do you guys recon I should try on this then?
Coolant flush? Lime scale remover? Jet wash through it?
No, it's 8 separate parallel pipes, each of which has a spiral plastic feature (not limescale) inside it to aid transfer of the coolant heat to the tube walls. There may be some sludge in there too, but those plastic bits (like pasta spirals) are meant to be there.
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Jet wash through it?
I would not recommend that you stand a chance of blowing the matrix apart, coolant flush may help.
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Mate ou are a fcuking legand :grin:
I can't belive you actuly cut that in half to show me :grin: your a diamond geezer cheers fella.
So it realy is just a single pipe that goes up and down up and down up and down and up and back out. So it has to be a clogged matrix.
Ok great what do you guys recon I should try on this then?
Coolant flush? Lime scale remover? Jet wash through it?
No, it's 8 separate parallel pipes, each of which has a spiral plastic feature (not limescale) inside it to aid transfer of the coolant heat to the tube walls. There may be some sludge in there too, but those plastic bits (like pasta spirals) are meant to be there.
It does look like parallel pipes looking at the pics now actually. :rolleyes:
These spiral plastic bits then, if they are meant to be there, were extremely brittle, They felt like blocks of limescale and fell apart when rubbed between my fingers into tiny grit like particles. If these collapse then I reckon they could cause blockages on their own. Either way, it was blocked, and now a new matrix has sorted my problem out. :wink:
No worries Stainsy! It was the old one and sat in the shed anyway! :smiley:
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Bet you havin cutting that in half realy didn't you :grin:
Ok looking at the history of the car. It has had a new head gasket about 10k miles ago and the coolant looks dirty brown so I am going to flush it. Should I use forte coolant flush or forte bio degreaser?
The flush says it get rid of rust and lime scale but not sludge and the bio degreaser says it gets ridge of congealed oil and sludge. What ou recon?
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If it has had the headgasket replaced then you may have an airlock.
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Just run a hosepipe through it for a minute. Not worth all that crap flush stuff if u ask me. It's only gonna make all the hard crusty bits float around with the possibility of blocking more things by using something to brake it all down anyway.
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Flush it though with a hose pipe. Then refill and try to get all of the air out. Rev it at 2k for a few minutes with the coolant tank top off. With heathers on hot pointing at the windscreen.
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I have one this. I had the cap off and car running for 45 mind the other day. I have also run water through the matrix with a hose.
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ok just took both heater matrix hoses off and gave them a good wash throught with a hose. also give it a good blow through with my mouth both directions then another wash through.
lost alot of coolant from the block so put it all back together and topped up the coolant again. had it running wile i was waiting for it to circulate. had the return pipe off the header tank so i new when it was flowing again nicely. then put that back on.
when it was running for about 15 mins and all back up to temp the header tand water started bubbling like mad. like it was boiling over realy badly and evan was spitting out really badly. is that just coz it was hot? should it do that?
i turned engine off to stop it and the water level dropped down way below min mark so topped it back up again and left it running for a wile then when it was up to temp again it started coughing and spluttering from the header tank again. thought i was just all the air coming out so left it for a wile and it just keeps doing it.
heater got warm then went cold again. all the time the temp is fin at 90.
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Yeah as it's not pressurised with the cap off, as soon as it gets close to boiling point and the water is expanding, it just coughs and spits water out. Just top it up to max now and put the filler cap on. You should have cleared any air locks in there. Looks like you've hit a brick wall mate, get the matrix changed. As I said, I ran a hose through mine initially and got water back out, it all seemed fine but changing it actually made the difference. Don't think there is anything else you can change now so it's the only thing remaining.
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Fcuking hell it's all settled down now and I actuly have heat from the heaters. It's not realy hot but it's a constant warm air flow. Enough to get the car warm inside in about 5 mins. I recon if I do another few matrix flushes and give the system a full flush and put nice new stuff in may get abit hotter aswell. I'm well chuffed now.