I really have too much free time... My friend says ordinary people just drive Corsa and then sell it. 
This summer i got one 2005. C with a busted engine as a donor car for the climate control and some other bits and pieces. But a man has to eat so i was away from home for 4 months making some €€€. Now that im back in big style, the project can begin.
What is needed and what i took from the donor car...
-obviously, the control panel
-temperature sensors - 2 pieces (footwell vents and the upper "head" vents)
-Sunlight sensor
-(optionally) dash that has a perforation for a sunlight sensor (in between the windscreen vents), otherwise you need to cut
-fan controller. The old one (resistor type) is useless for ecc
-electric actuators for vents and heater flap, together with the microswitch.
-linkage for the actuators. Although similar, linkage of the manual control is not the same. Namely you will need lever of the heater flap and the windscreen vent. If you are a bit skilled and have some machining equipment, you may even adapt those of the manual control.
-(optionally) a complete ventillation box that already has holes for all these sensors and motors. It will make your life easier and harder in the same time. You will need to release the refrigerant and the coolant. There is no other way to replace it. If you don't want that (like me), then you need to drill holes for the sensors, and for the new (bigger) fan controller.
-(optionally) recirculation motor. There are two types of them (Hella and Bosch) as it looks to me. Apparently they are physically the same but not electrically
-wiring looms. There are two of them. The one with the blue connector goes around the sensors and motors. The one with the grey connector is connected to the main wiring loom of the dashboard. Speaking of which you may (like me) take the entire wiring loom of the dashboard. It will make your life easier, as you will "simply" disconnect the old loom from the BCM box and from all the switches, tacho and what not, and then connect the one from the donor car. Have in mind however that you may have different connectors for the radio and display depending on the year of yours and the donor car. Not a big deal if you are using aftermarket stereo however. Some other things may also be missing from the donor loom, so you need to think carefully. If you dont want to replace the loom then you need to re-wire the existing one. It is not "that" hard and the schematics are available on AutoData.
As you can see the list is quite big. If you want to source all these parts separately, it may be a tough and time-consuming job unless you find a complete set. The best thing-find a donor car at the scrapyard or elsewhere. It took me just a few hours, set of torx keys, 6-13 spanners and a ratchet, to remove everything from the donor car. And i never before removed a dash from the Corsa.
You will need opcom as well, to reprogram your bcm and ecu with the climate control instead of manual control.
Some pics...
Sunlight sensor location
All out - donor wiring loom in place and tested - so far so good.
Not exactly clearly visible, actuator motors fitted in place. They come right in place of manual controls, however the two above mentioned levers had to be changed. Also on a pic indicated a place where to drill a hole for the footwell temp sensors.
Right now i'm having some issues with the controller. It keeps the rear demister constantly on (cant be switched off for some reason) and the fan is constantly at the highest speed. Vent movements are sometimes a bit strange and the display sometimes flickers on and off. While it was still in the donor car, there was an error code in it indicating a faulty eeprom.
Hopefully a new controller will do the trick.
When this rain stops there will be more updates. 🤓
This summer i got one 2005. C with a busted engine as a donor car for the climate control and some other bits and pieces. But a man has to eat so i was away from home for 4 months making some €€€. Now that im back in big style, the project can begin.
What is needed and what i took from the donor car...
-obviously, the control panel
-temperature sensors - 2 pieces (footwell vents and the upper "head" vents)
-Sunlight sensor
-(optionally) dash that has a perforation for a sunlight sensor (in between the windscreen vents), otherwise you need to cut
-fan controller. The old one (resistor type) is useless for ecc
-electric actuators for vents and heater flap, together with the microswitch.
-linkage for the actuators. Although similar, linkage of the manual control is not the same. Namely you will need lever of the heater flap and the windscreen vent. If you are a bit skilled and have some machining equipment, you may even adapt those of the manual control.
-(optionally) a complete ventillation box that already has holes for all these sensors and motors. It will make your life easier and harder in the same time. You will need to release the refrigerant and the coolant. There is no other way to replace it. If you don't want that (like me), then you need to drill holes for the sensors, and for the new (bigger) fan controller.
-(optionally) recirculation motor. There are two types of them (Hella and Bosch) as it looks to me. Apparently they are physically the same but not electrically
-wiring looms. There are two of them. The one with the blue connector goes around the sensors and motors. The one with the grey connector is connected to the main wiring loom of the dashboard. Speaking of which you may (like me) take the entire wiring loom of the dashboard. It will make your life easier, as you will "simply" disconnect the old loom from the BCM box and from all the switches, tacho and what not, and then connect the one from the donor car. Have in mind however that you may have different connectors for the radio and display depending on the year of yours and the donor car. Not a big deal if you are using aftermarket stereo however. Some other things may also be missing from the donor loom, so you need to think carefully. If you dont want to replace the loom then you need to re-wire the existing one. It is not "that" hard and the schematics are available on AutoData.
As you can see the list is quite big. If you want to source all these parts separately, it may be a tough and time-consuming job unless you find a complete set. The best thing-find a donor car at the scrapyard or elsewhere. It took me just a few hours, set of torx keys, 6-13 spanners and a ratchet, to remove everything from the donor car. And i never before removed a dash from the Corsa.
You will need opcom as well, to reprogram your bcm and ecu with the climate control instead of manual control.
Some pics...
Sunlight sensor location

All out - donor wiring loom in place and tested - so far so good.

Not exactly clearly visible, actuator motors fitted in place. They come right in place of manual controls, however the two above mentioned levers had to be changed. Also on a pic indicated a place where to drill a hole for the footwell temp sensors.

Right now i'm having some issues with the controller. It keeps the rear demister constantly on (cant be switched off for some reason) and the fan is constantly at the highest speed. Vent movements are sometimes a bit strange and the display sometimes flickers on and off. While it was still in the donor car, there was an error code in it indicating a faulty eeprom.
When this rain stops there will be more updates. 🤓