SEAT Leon Climatronic

[quicky1980 0]

I'm planning on fitting air con to my non air con vr6. Ive got the compressor but nothing else.

I may be able to get a complete air con system, but I want to fit the climatronic system from the seat leon as it looks great and would be a great comfort feature. I've heard others have fitted, in Partic' coolrado so I know its possible.

 

Now how much of the seat leon system will fit the corrado? Will it all fit and allow the full conversion, or do I need the standard corrado system and then retro fit the climatronic. I'm going to do a full writeup on installation inc parts and pics if people are able to help out.

 

Any input would be great. Thanks

[coolrado 0]

its not a straight forward swap, although most of the power supply and signal wires have the same colour codes as the original system, i got the complete wiring loom from the seat and spent a very long time looking through wiring diagrams and removing all of the irrelevant wiring, leaving just the climatronic wiring and sensors( which there are a lot of).

 

I also had the complete ducting system from the seat, which was probably the easiest bit to do, you need to remove the complete corrado ducting system and fit the seat one instead, even the centre duct matches up with the corrado dash, you also need to modify the passenger side under dash tray, or get one from an aircon corrado as the motor is bigger and mounted horizontally unlike the corrado one.

 

you may need custom pipework making up to run to the pump, but the seat pump fits on the original corrado bracket (at least on a g60) as well as finding an aircon rad and condensor that will fit, or just get the aircon system from a corrado or passat vr and use that, and just get rid of the corrado controls, the electrical connections should be the same

 

i didnt end up fitting the aircon pump and pipework as i have a toothed belt system now so fitting the pump isnt really an option, although the wires are there to connect it straight up.

 

the passat climatronic controller and seat controller are interchangeable with exactly the same connections on the back, the seat just has a bigger clearer display with dimmable red illumination and bigger buttons.

 

the system does not need to be reset or programmed and does not talk to the cars ecu as i was originally told it needed to be, and as soon as it gets all the correct inputs it works fine, it does have outputs for diagnostics readers but they are not required as it can display fault codes and show input states when you put it into diagnostics mode.

[quicky1980 0]

brilliant, doesnt the climatronic have some sort of motor mechanism to control the temp for each side of the car etc?

 

What I'll do then is fit the VR6 aircon, then I'll fit the climatronic later on. This will give me chance to source all the parts.

[coolrado 0]

yeah all of the motorised flap controls are in the seat ducting system, but its not side to side, thats dual zone climate control and only fitted to the top of the range passats, phaeton and touareg as far as i know.

 

its not really possible to fit the motors onto the corrado ducting hence why i fitted the seat ducting system.

what the climatronic system does also add is a recirculating option.

[quicky1980 0]

when you say ducting, do you mean the pipes that come from the bug air distributor box? I'm calling a guy up tomorrow about a corrado aircon system. Hoping to use this to convert mine to climatronic like yours. Was the wiring difficult? I have wired up the engine (vr6 conversion) and have fitted alarms so would you say its as difficult as that or a case of pluging all the plugs in?

 

Im quite suprised that not many others have done this

[coolrado 0]

by ducting i mean all of the black plastic pipework, fan and flaps, basically everything behind the dash, the only things i would use from the corrado aircon system would be the aircon compressor, pipes, radiator, condensor and evaporator so everything under the bonnet, and the small section of duct from the centre air outlet to the centre ar vents and the side outlets to the side vents and the foot vents.

 

wiring is quite logical to do its just a case of going through all of the wiring diagrams which can be found at the volkswagen.msk.ru site and matching up all of the relevant wires, i didnt have to remove any of the corrado wiring so if wanted to i could change mine back to standard.

 

none of the connectors will fit though they are all a different style (mostly amphenol connectors)

[tonedef 9]

..................... would you say its as difficult as that or a case of pluging all the plugs in?

There's maybe a little more to it than that :norty:

 

Im quite suprised that not many others have done this

I'm not, it's pretty major surgery and unless you've already got half the engine out, the front end off and all the dash out it's a bit daunting knowing where to start. Well worth it in the long run though, stick at it, you'll be fine.

 

Myself, I'd skip buying a Corrado air con system, they only replace the fan box anyway, and the climatronic uses a whole different animal. Start with a climatronic install from a Golf/Passat/Seat, chances are you'll get something that's not already almost 15 years old. If I ever do another one I'd also look at a much later condensor (rad) as the one I used from a Passat VR6 is huge

[quicky1980 0]

I dont think the dismantling of dash and front of the car is difficult. I've done it several times now. :cuckoo:

 

I wanted to get the full corrado system as I wanted a good building block to start from, i would then start replacing the parts for seat versions.

 

What would I deffinately need from the corrado air con system to then ie corrado specific parts? (which are hard to find)

air box?

air con pipes?

wiring loom?

relays?

 

And what cars, model and age can I get the other parts to convert to climatronic.

 

I was looking at the bentley manual and cant seem to find much on the wiring diagram. Is it in there?

[tonedef 9]

I dont think the dismantling of dash and front of the car is difficult. I've done it several times now. :cuckoo:

 

I wanted to get the full corrado system as I wanted a good building block to start from, i would then start replacing the parts for seat versions.

 

What would I deffinately need from the corrado air con system to then ie corrado specific parts? (which are hard to find)

air box?

air con pipes?

wiring loom?

relays?

 

And what cars, model and age can I get the other parts to convert to climatronic.

 

I was looking at the bentley manual and cant seem to find much on the wiring diagram. Is it in there?

From my personal experience with fitting climatronic I would say that if you buy a Corrado air con system as a base you'll end up selling it on again as it bears no relation to what you're looking for, or scrapping it because most bits are already past their prime. I'm not being negative here regarding your choice of parts, believe me that along with TT wipers I think it's the best thing I've done to the Corrado, I'm just trying to save you the grief of locating a decent Diavia install (if that's possible) to find it's no use:

 

The airbox for cc has the majority of the motorised valves already built in to it, along with lots of cabling etc. It runs a different fan i.e. not the standard four speed set up from the Corrado or Diavia set up. The intake is different as it has a re-circulate valve built in.

 

Refrigerant pipes would be no good as they would be too long and most likely have the wrong fittings to mate with the airbox you need. I used the original Passat VR6 pipes and with a little creativity they went into the engine bay, also the long runs are in ally tubing rather than rubber so IMO look tidier.

 

Wiring loom for a/c again is designed to run only a/c, you're going to need a lot more signalling to run cc and therefore best start with a cc loom.

 

Relays, take a look on here how many people have had trouble with diavia a/c relays and ask yourself if you wanna buy into that? I you have the late VR6 fan controller installed already then some of the relays such as compressor clutch are already there in your car, you just have to connect in to the spare pins.

 

My install came from a 96 Passat VR6, I'd say it's possibly best to use something later as mine is pretty basic with most flap valves controlled by vacuum from the inlet manifold. Later versions had more electric valves so a later nineties Golf/Seat one might be a better bet. As I said before I'd also look out for a condensor from a later model, the one in my Corrado must be almost double the size in every direction to the one I had in my S3!

 

For wiring diagrams I borrowed a genuine Passat folder of VW diagrams from my local dealer, they had long since lost the Corrado one but they are basically the same loom and so give you a good base to work from, Bentley drawings are basic at best. When I get home from Saudi in a couple of weeks I can scan copies of what drawings I have and send them on if you're interested, IIRC I've got the Passat ones I used plus a set of Golf drawings from around 98 somewhere in the garage.

 

Try Carl bigpants as he has something of a knack for locating this type of stuff, plus he knows what and how to strip from a donor car so you've got all the bits you need :notworthy: I've still got my second wiring loom from him (the OBD2 one) sitting in my garage waiting for me to get enough time in UK to install it!

[dinkus 10]

Gah, damn you for bringing this up again - I'd managed to convince myself that now I've got working heater controls, I really don't need to do this. Buuut I'm on a roll after finishing the stereo install, so how hard could it be...

 

Especially as I've already got a Mk4 Climatronic fan box and compressor... hmm... :lol:

 

There's also a nice little bundle of info here that I've collected which may be of use to anyone attempting this:

2.8l 24v Climatronic system.pdf

climatronic wiring-Golf from May 01.pdf

[tonedef 9]

Gah, damn you for bringing this up again - I'd managed to convince myself that now I've got working heater controls, I really don't need to do this. Buuut I'm on a roll after finishing the stereo install, so how hard could it be...

 

Especially as I've already got a Mk4 Climatronic fan box and compressor... hmm... :lol:

 

There's also a nice little bundle of info here that I've collected which may be of use to anyone attempting this:

Well done that there dinkus man, that's loads of the stuff I've posted in the past, recognised me abs pump first! Knew you'd been bitten by the bug, when you ripping the car to bits then? :norty:

[dinkus 10]

Yeah, I think most of that info's come from you :lol:

 

Gotta acquire the bits before I get too carried away and timing chains are needin' a doin' first...

[quicky1980 0]

Lovely job guys.I dont think Bigpants likes me, not sure what Ive done but he's blocked me on ebay :( will hav to source parts elsewhere.

[tonedef 9]

Yeah, I think most of that info's come from you :lol:

 

Gotta acquire the bits before I get too carried away and timing chains are needin' a doin' first...

Do it at the same time you're doing the chains, you'll have more room in the bay then :norty:

[dinkus 10]

Yeah, I think most of that info's come from you :lol:

 

Gotta acquire the bits before I get too carried away and timing chains are needin' a doin' first...

Do it at the same time you're doing the chains, you'll have more room in the bay then :norty:

 

Well that had crossed my mind... :lol:

[Chris 0]

quick question about this, im interested in this install too but simply for aestetic purposes, not fussed about the a/c. could i hook this thing up to just run the fan speeds and the hot/cold like my original now broken heater controls. if so how hard is it to do? any problem areas i should be aware of?

[dinkus 10]

quick question about this, im interested in this install too but simply for aestetic purposes, not fussed about the a/c. could i hook this thing up to just run the fan speeds and the hot/cold like my original now broken heater controls. if so how hard is it to do? any problem areas i should be aware of?

 

i didnt end up fitting the aircon pump and pipework as i have a toothed belt system now so fitting the pump isnt really an option, although the wires are there to connect it straight up.

 

the passat climatronic controller and seat controller are interchangeable with exactly the same connections on the back, the seat just has a bigger clearer display with dimmable red illumination and bigger buttons.

 

the system does not need to be reset or programmed and does not talk to the cars ecu as i was originally told it needed to be, and as soon as it gets all the correct inputs it works fine, it does have outputs for diagnostics readers but they are not required as it can display fault codes and show input states when you put it into diagnostics mode.

 

So yes, you can, but you still need to swap the whole of the ducting in the dash to do so...

[Chris 0]

 

So yes, you can, but you still need to swap the whole of the ducting in the dash to do so...

 

i should pay more attention to these threads! lol, ill let you know when i need spoon feeding again. :)