Leon AC swap to Climatronic???

Gubien.

What I was expecting to see when you announced that you had bought a clima control unit was the item that fits into the central console, replacing the manual dials, with the LCD screen and pushbuttons. That is the actual control unit, the unit that contains the electronic control system for the Climate Control.

The pictures above show the guts of a cabin ventilation system, including fan, cooling and heating heat-exchange matrices and the servo-controlled flaps.

It should include the inlet air temperature sensor, but may not include the footwell air temperature sensor. The sunlight sensor and dashboard air temperature sensor are completely separate items.

You still need the electronic control unit itself and the remaining sensors: possibly some wiring harness as well. Oh, and the rest of the cooling system, if you don't already have "aircon". EDIT - note that you do already have aircon. You'll need to depressurise the system (probably at a specialist who can deal with the refrigerant without venting it to atmosphere) when you swap the ventilation units over, then get it refilled.

I'd expect that you'll have to dismantle a lot of the dashboard to get this fitted. Best of luck.

Muttley said:

Gubien.

What I was expecting to see when you announced that you had bought a clima control unit was the item that fits into the central console, replacing the manual dials, with the LCD screen and pushbuttons. That is the actual control unit, the unit that contains the electronic control system for the Climate Control.

The pictures above show the guts of a cabin ventilation system, including fan, cooling and heating heat-exchange matrices and the servo-controlled flaps.

You still need the electronic control unit itself and the remaining sensors: possibly some wiring harness as well. Oh, and the rest of the cooling system, if you don't already have "aircon". EDIT - note that you do already have aircon. You'll need to depressurise the system (probably at a specialist who can deal with the refrigerant without venting it to atmosphere) when you swap the ventilation units over, then get it refilled.

I'd expect that you'll have to dismantle a lot of the dashboard to get this fitted. Best of luck.

Click to expand...

I know about the control unit and all the extras... but the unit costed me 50euro including shipping... and the list price is around 1000-1200 euro (new).

Dont know whether I will try out the install myself(After Seat has de-gassed the system)

Those are really nice pics of the dismounted unit, and show up the locations of the components well.

Hijacking your pictures:


That flap is the recirculated/outside air flap, the cabin air inlet temperature sensor is the grey spike coming in from below. The fan is underneath it. Gold-ish metal item to the right is where the refrigerant pipes connect to. Red item is the fan control unit.


Water connections to the heater matrix on the right, refrigerant connections on the left. Flap top right is screen/footwell. Good view of the inlet air temp sensor.



Yellow lever is the footwell/deicing flap



Dash vents




Green lever is the dashboard vents flap, the pink one behind it is the temperature control flap. Someone was asking about that a while ago, hope he's lurking . . .
Fan off to the right, footwell vent connection on the left

mjtuning said:

Hey,
I have a 2002 Leon tdi with the normal a/c system. Can i install the climatronic?
What I need then? climatronic module/display, new center console, ...???? is wire harness same or??

Click to expand...

buy a car with it in ?

So what we can conclude is, all the servos/flaps in on the unit itself.

I need, cabin temp sensor, solar sensor, fascia, control unit, maybe some harness, unless they are on the unit and the unit only need power and is fully operated by the control unit.

why not just stick this to the dash and turn the knobs to suit ?



before you flame me, i'm not taking the mick just being honest that it's about the only basic difference between the two apart from the servo motors, a shed load of wires and hassle's and a dash out fitting hassle ??? is it really worth it ?

that said i admire ya for doing it and will be looking out how you get on and if there is any help parts wise diagrams/wiring etc i can source for ya feel free to ask and i'll do my best to help

oooh just to add the motors are fragile and troublesome at best so advise pre-testing it all works 'out the car' if at all possible

For those interested:



This wiring harness is on my unit, so I need, fascia, solar sensor, blower/sensor for measuring cabin temperature and the control unit in the dash.

I have two plugs free, Plug 6 (interior, guess solar sensor and cabin temp) and Plug 14 is the last one without description, so I would assume its the power plug. The rest is mounted to a servo, sensor or blower on the unit.

Gubien wrote

So what we can conclude is, all the servos/flaps in on the unit itself.

It looks to be so.

I need, cabin temp sensor, solar sensor, fascia, control unit, maybe some harness, unless they are on the unit and the unit only need power and is fully operated by the control unit

You might need the footwell temperature sensor. It should be in the footwell vent below the flap but I'm not sure I see it there.

The cabin air temperature sensor sits just above the Climatronic unit itself, behind a panel with a set of small holes drilled in it. There is a small fan which sucks air through the panel and over the sensor.

The Climatronic unit takes several measurements from the ECU (coolant temperature, outside air temperature, etc.) and delivers some signals (radiator fans on slow, refrigerant compressor on/off, and so on), and I suspect connector 14 delivers them. Power connection might also be there.

Looking at the diagrams I can see that the climatronic fan has a different control unit to the manual fan, which has a resistor pack on the bottom of the fan unit.

Mounting the sunlight sensor will be fun. It may need a new demister grill in the dash to fit it into.

You do also have to hope that your existing loom has all the mating connections it needs.

Plug 5 is also unallocated, I think?

Muttley said:

Gubien wrote

So what we can conclude is, all the servos/flaps in on the unit itself.

It looks to be so.

I need, cabin temp sensor, solar sensor, fascia, control unit, maybe some harness, unless they are on the unit and the unit only need power and is fully operated by the control unit

You might need the footwell temperature sensor. It should be in the footwell vent below the flap but I'm not sure I see it there.

The cabin air temperature sensor sits just above the Climatronic unit itself, behind a panel with a set of small holes drilled in it. There is a small fan which sucks air through the panel and over the sensor.

Looking at the diagrams I can see that the climatronic fan has a different control unit to the manual fan, which has a resistor pack on the bottom of the fan unit.

Mounting the sunlight sensor will be fun. It may need a new demister grill in the dash to fit it into.

You do also have to hope that your existing loom has all the mating connections it needs.

Click to expand...

The footwell sensor is there, its placed in the unit.
Yeah I know, I can turn out to be complicated, found the blower motor and sensor to the cabin. around 30 euro used.
Havent seen a sunlight sensor or demister grill, but I'm just getting started )

Regarding the existing loom, I cant see what should be missing, there are only two free plugs on the unit.

Plug 5 is also connected, I reckon it was the the first servo motor to control the outside air getting in.

I can see there are en section in the demister grill, so right now I have a cover in it, which can be replaced with the other part, prepared for the sunlight sensor.

About the possible wiring to the existing loom, I really do think it mates, as I dont think the VAG concern is that studpid, but I dont think I can avoid lang encoding.

This project is dead, due to back problems I simply dont have time or energy to fullfill the project, and I really dont think it would make sense to pay a seat dealer in denmark to do the job(110 £ a hour).

If anyone could use the unit, just pm me.

Seems pretty sick the harness alone cost 458 euro!
http://www.ebay.de/itm/Seat-Leon-1M...&otn=3&po=LVI&ps=63&clkid=6973008304781750620