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  1. #1
    Westy's Avatar
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    Anyone changed the heater matrix themselves?

    Any guides kicking about, any tips?
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  3. #2
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    Quote Originally Posted by Westle View Post
    Any guides kicking about, any tips?
    Oh dear, is it leaking Westle
    3.2 V6 with Custom Code VVT Attack Software


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    it looks like an absolute biiaaatch of a job mate! i had a good look at it when i had my dash out to replace my heater fan, definately not a job id choose do to!!
    99' a3 quattro - k03s, carbonio cai, simota cone filter, FMIC, raceland coilovers, fully polybushed, forge TIP, forge 007p, forge coolant hose kit, forge throttle body pipe, stainless catback, brembo pads, stage one map, black angel eyes, 17" radius r3's gt28rs coming very very soon

  5. #4
    Westy's Avatar
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    Quote Originally Posted by sandip View Post
    Oh dear, is it leaking Westle
    The smell is getting worse and I can only assume it's the matrix

    Quote Originally Posted by quattro1 View Post
    it looks like an absolute biiaaatch of a job mate! i had a good look at it when i had my dash out to replace my heater fan, definately not a job id choose do to!!
    If nobody recomends doing it it'll be done by my trusty mech when he does my turb in 3 weeks time.
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  6. #5
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    I reckon a late night mechs sessions with elsawin.

    plus a couple of beers sorted.

    save the labour charge and spend on mods. - I think thats good advise lol.
    Revo Stage 2 with all the Gear
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  7. #6
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    Quote Originally Posted by S3 Baby View Post
    I reckon a late night mechs sessions with elsawin.

    plus a couple of beers sorted.

    save the labour charge and spend on mods. - I think thats good advise lol.
    Well this is what I was thinking mate as we've got nothing to do till the 2nd week of June
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  8. #7
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    That's going to be one heck of a late night session lol
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  9. #8
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    worst case i'll drive you into work till we get it done. lol
    Revo Stage 2 with all the Gear
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  10. #9
    Westy's Avatar
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    Quote Originally Posted by sandip View Post
    That's going to be one heck of a late night session lol
    Friday into Saturday. Tunes pumping, couple of beers and strong coffees. It's what Friday nights are all about
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  11. #10
    Westy's Avatar
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    Quote Originally Posted by S3 Baby View Post
    worst case i'll drive you into work till we get it done. lol
    Dude i'm on my bike, there's no worries
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  12. #11
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    Hell Yeah

    Better than spending £80+ down the drain.
    Revo Stage 2 with all the Gear
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  13. #12
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    owch nice job to-do wouldnt even hazard a guess when u say it smells nothing to do with the atmosheric catch can you got going on affecting the pollen filter? its a long shot but thought i would ask it

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    I can see we are both as busy as each other. lol
    Revo Stage 2 with all the Gear
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  15. #14
    Westy's Avatar
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    Quote Originally Posted by paul syverson View Post
    owch nice job to-do wouldnt even hazard a guess when u say it smells nothing to do with the atmosheric catch can you got going on aftecting the pollen filter? its a long shot but thought i would ask it
    Nah I've had this smell for a long time and it smells nothing like the fuel smell you get from the catch can. It's more of a sweet spicey smell which I'm guessing is a mixture of stagnant water and coolant. You can only smell it when the heater unit is turned on which all points towards the heater matrix if you ask me.
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  16. #15
    Westy's Avatar
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    Quote Originally Posted by S3 Baby View Post
    I can see we are both as busy as each other. lol
    shhhhhh
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  17. #16
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  18. #17
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    Quote Originally Posted by Westle View Post
    Ooooooooo.... that brings back memories of doing the heater matrix in my A4.... a thankless task...

    Just had a quick look in my A3 Haynes manual (yes, I have one!) and it looks a similar job... dash off before you can get to the heater unit... disappointing...

    You will need to get your aircon degassed prior to the job (thats how I did my A4 at least) then regassed after... I also discovered the aircon condensor needed replacing too as it had a leak...

    According to the Haynes manual, you also have to modify the dash panel support to get the heater unit out... involves drilling out a couple of spot welds then cutting part way through... there is a reinforcing plate behind that you don't cut through as this is what you will be bolting it back together with..

    Crappy phone pic of Haynes...



    Drill out 'A' with a 7mm drill and cut carefully through the 'dashed' line underneath but not through the plate at the back is how I read it..

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  19. #18
    Westy's Avatar
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    Tuffty what's happened to your name?

    Oh and I think I'll give this job a miss! I'll see what my mechanic says.
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  20. #19
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    sod that!!! lol
    99' a3 quattro - k03s, carbonio cai, simota cone filter, FMIC, raceland coilovers, fully polybushed, forge TIP, forge 007p, forge coolant hose kit, forge throttle body pipe, stainless catback, brembo pads, stage one map, black angel eyes, 17" radius r3's gt28rs coming very very soon

  21. #20
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    Quote Originally Posted by quattro1 View Post
    sod that!!! lol
    You are not wrong... was an long winded job!! My A4 went from this..



    to this...


    Fun it was not but feck knows how much a dealer would have charged!!

    Neil, the symptoms on my A4 were condensation on the inside of the windows whilst the heater was on and a sweet sickly smell of coolant... if yours has gone I wouldn't advise driving too far with it as it will make you ill... mine was like it for a month before I got around to doing it... I never felt so 'well' afterwards... G12 is not nice stuff..

    <tuffty/>
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    jesus that looks like a complete ballache lol, fair play to you for having the drive to get it done! dont think i could do it!
    99' a3 quattro - k03s, carbonio cai, simota cone filter, FMIC, raceland coilovers, fully polybushed, forge TIP, forge 007p, forge coolant hose kit, forge throttle body pipe, stainless catback, brembo pads, stage one map, black angel eyes, 17" radius r3's gt28rs coming very very soon

  23. #22
    <tuffty/>'s Avatar
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    Quote Originally Posted by quattro1 View Post
    jesus that looks like a complete ballache lol, fair play to you for having the drive to get it done! dont think i could do it!
    It was but the motivation was purely financial... as was when I did the cam belt on her..


    Fairly std process on longitudal VAGs to remove the front though to do 'anything'....

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  24. #23
    A3Tom's Avatar
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    Heater matrix?.........................rather you than me!
    2000 Audi A3 1.8T Sport - Custom Code Phase 1 remap / Custom Stainless Catback Exhuast / MKII 18" RS4 Reps / Wietec Ultra GT40mm / KW ARB's / Forge TIP / Forge 007 / Green Panel Filter / EBC Greenstuff pads / 312mm S3 front brake upgrade / Aero Wipers / LED Interior Lights / LED Side Repeaters / Face Lift Rear Lights and covered in Dodo Juice

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    omg tuft lol, that looks unreal. i bet that would cost an absolute friggin fortune in labour!!!!!!!!!!!!!!!!
    99' a3 quattro - k03s, carbonio cai, simota cone filter, FMIC, raceland coilovers, fully polybushed, forge TIP, forge 007p, forge coolant hose kit, forge throttle body pipe, stainless catback, brembo pads, stage one map, black angel eyes, 17" radius r3's gt28rs coming very very soon

  26. #25
    Westy's Avatar
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    Paul I've been driving round like it for nearly a year and it's been getting worse and worse. I've got the heater off at the moment. No condensation but it smells like spicy celary! That's the only way I can describe it!
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  27. #26
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    Thought I'd revive this thread as the mornings are starting to get cold and I really need to get it sorted.

    I got a quote from my usual audi mechanic who quoted me around £300 for the heater matrix to be changed due to the amount of time it takes. £300 is not an option because I refuse to pay that amount just to be warm, so I'll have a crack at it myself.

    The smell that comes through is definitely coolant as it smells exactly the same as when you stick your nose inside the header tank but it's stronger when heated and in the car.

    I did the old heater on full blast with AC on and pointing at the windscreen to see if there was any moisture that would show a leaky heater matrix. Not a bean, nothing on the screen at all!

    My mechanic said that he's never had to change an S3s heater matrix so I assume it's quite rare that they go! I'm wondering what else it could be but It looks like i'll need to strip out the dash and investigate the heater matrix before I find out. I'll keep you updated.
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  28. #27
    Westy's Avatar
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    Ok guys I need your help!

    I'm getting together all the needed parts this week ready to tackle this job next week.

    I need a list of parts to do the job including any bespoke tools and gaskets etc. Please add to my list:

    - Heater Matrix (obviously)
    - Coolant
    - Steering Wheel removal tool
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  29. #28
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    Torx and Hex tools
    Some pliers
    Spanner no.17 or 19 don't remember
    some spare time
    and obviously couple of beers lol
    Currently not in the country

  30. #29
    Westy's Avatar
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    Quote Originally Posted by Danio View Post
    Torx and Hex tools
    Some pliers
    Spanner no.17 or 19 don't remember
    some spare time
    and obviously couple of beers lol
    Have you done this before Danio?

    Can I de-gas the AC myself or is it best to just go to my local garage?
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  31. #30
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    Quote Originally Posted by Westy View Post
    Have you done this before Danio?

    Can I de-gas the AC myself or is it best to just go to my local garage?
    Yes I've done it before on my A3 when I was fitting air con.

    Yes you can de-gas AC yourself if you know how to. I went to Halfords to do it as I had voucher.
    Obviously it is not hard to do it but you have no guaranties that all system is tight so maybe better is to go to garage and re-gas it.
    Currently not in the country

  32. #31
    Westy's Avatar
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    Quote Originally Posted by Danio View Post
    Yes I've done it before on my A3 when I was fitting air con.

    Yes you can de-gas AC yourself if you know how to. I went to Halfords to do it as I had voucher.
    Obviously it is not hard to do it but you have no guaranties that all system is tight so maybe better is to go to garage and re-gas it.
    Will definitely get it regassed at a garage but was thinking about de-gassing it myself if it's not too difficult?
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  33. #32
    ScottD3's Avatar
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    Good lucky westy.
    Mine is starting to smell.
    But it has to wait a couple of months before I tackle it. I need to get my electronic bits sorted out.

    Can't wait for the post.

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  34. #33
    Danio's Avatar
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    Quote Originally Posted by Westy View Post
    Will definitely get it regassed at a garage but was thinking about de-gassing it myself if it's not too difficult?
    No just open both valves one near radiator and the second one behind maf sensor.
    Currently not in the country

  35. #34
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    Quote Originally Posted by Danio View Post
    No just open both valves one near radiator and the second one behind maf sensor.
    Thats bad for the environment, bad for your health and illegal.
    Give it to a registered garage.
    If you talk to them nicely, they might empty it for free if you go back or pay to empty but free refill.

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  36. #35
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    Always wondered how many heater matrixes rot from the inside out due to not having the coolant changed. Say a car is coming on ten years old, then how much corrosion inhibitor is going to be left in the original coolant?

  37. #36
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    Quote Originally Posted by a3tdi2001 View Post
    Always wondered how many heater matrixes rot from the inside out due to not having the coolant changed. Say a car is coming on ten years old, then how much corrosion inhibitor is going to be left in the original coolant?
    Not alot in the original coolant but it should be changed. I can't remember when it should be changed it should deffo be changed.
    I think its part of the service schedule.

    People run water, the wrong mixture of coolant or the wrong coolant does not help.
    If it corrodes a heater matrix, just think what it is doing to the rest of the coolant system. :|

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  38. #37
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    I thought that the coolant was for life according to Audi. Oh well.
    Don't like the new G++. They've gone back to using silicates which I'm not so sure about, especially for water pump seals. Time will tell all I guess.
    Last edited by a3tdi2001; 10th October 2011 at 18:03.

  39. #38
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    Quote Originally Posted by scott b5 View Post
    Thats bad for the environment, bad for your health and illegal.
    Give it to a registered garage.
    If you talk to them nicely, they might empty it for free if you go back or pay to empty but free refill.
    Scott never heard about it that is illegal or bad to environment.
    I thought that gas has got no smell, at least I never smell anything.
    And next thing what if your system is not tight (you don't know about it) and all gas going to atmosphere?? Is that mean everyone will be sick??
    Currently not in the country

  40. #39
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    Quote Originally Posted by Danio View Post
    Scott never heard about it that is illegal or bad to environment.
    I thought that gas has got no smell, at least I never smell anything.
    And next thing what if your system is not tight (you don't know about it) and all gas going to atmosphere?? Is that mean everyone will be sick??
    I take it back.
    The old R12 gas is what was harmful, the new R134A is not. Still, I would not trust it as its under pressure.

    It might not be illegal for joe public, I know garages has to dispose of it properly.

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  41. #40
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    Found an official audi doc which shows you how to remove the dash if you want it fella. PM me your email address if you do
    '01 AMK, completely standard except for the Ambient Lighting Pack.

 

 
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