Author Topic: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit  (Read 304 times)

Offline spicypixel

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Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« on: August 18, 2018, 08:02:30 PM »
Question time!

So I've in the past successfully got the Passat panel (3AD907044Q) working in the golf mk5 (dual flap motors version). All was well until my recent condenser fault where it was slow leaking but I blamed my panel wiring for the compressor failing to work - so prior to taking it to a garage to have a look I reverted the wiring back to factory so I could reinstall my mk5 climatronic panel.

Sadly in the process the panel became seriously damaged as I put it in the boot and it somehow got lodged under something heavy...



No big deal I thought, let's get a new one, so I found a Scirocco panel to replace it (1K8907044J):


Car came back from the garage, vacuum tested and gassed up, mk5 panel makes the car ice cold so thought success was close. Prior to removing the mk5 panel again I set it on max heat and re-circulation off so as the fresh air intake flap motor would be left in fully open position when disconnected after.

The new panel lacks auto re-circulation but I just didn't rewire it back in and instead did a straight swap of pins 16 and 20 in Connector A.

Then went on to follow the usual instructions I did with the Passat panel...

Quote
     
These wires you’ll have to remove: 
   
Connector C / 16 pin       Brown  pin 9        white/ green       
Connector C / 16 pin       Brown  pin 10      yellow / green         
Connector B / 16 pin       Black    pin 7        grey / green         

These wires you’ll have to re-pin /change pin output

Connector C / 16 pin       Brown           pin 7        purple / yellow         - put this to PIN10 in the 16 pin Brown connector
Connector C / 16 pin       Brown           pin 8        blue / red                  - put this to PIN9 in the 16 pin Brown connector
Connector B / 16 pin       Black             pin 6        green / white            - put this to PIN7 in the 16 pin Black connector

So, after doing it, turned on the engine and held front air + AC as usual to do a panel re-calibration - then nothing. Blower/heater works but the radiator fans don't start up and the compressor doesn't either...

Connector A changes seem fine as it's retaining the settings on it between power cycling the car, but I suspect the fresh air flap isn't behaving so the compressor is refusing to spin up.

Any thoughts from anyone who has done the mk5 (twin flap motor) conversion to a newer panel, mk6/mk7/scirocco/passat - it shouldn't matter as the panels are all interchangable as much as I can see...

Just stumped as this worked first time using the Passat panel above and I sourced a 'rocco panel instead as it was the only one available at the time on ebay.
« Last Edit: August 18, 2018, 08:14:29 PM by spicypixel »
Mk5 GT TDI 170 - MY2007

Offline willni

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Re: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« Reply #1 on: August 18, 2018, 10:06:27 PM »
I've a Passat Control up for sale if you need part no. 3AA907044BQ

Offline spicypixel

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Re: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« Reply #2 on: August 18, 2018, 10:09:07 PM »
Yeah saw your sale post and replied there back when this was all working!
Did you not get it working yourself? Reason for sale?
Mk5 GT TDI 170 - MY2007

Offline willni

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Re: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« Reply #3 on: August 19, 2018, 07:30:20 AM »
Yeah saw your sale post and replied there back when this was all working!
Did you not get it working yourself? Reason for sale?

Mine was straight plug and play no wiring changes (07 eddy) only selling because the colours didn't match the rest of the trim. Only difference is mine has the silver dials which could be a different revision which could mean why it worked straight out for me, ChristianK informed me with mine is only swapping 1 or 2 wires at most.
« Last Edit: August 19, 2018, 07:38:11 AM by willni »

Offline spicypixel

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Re: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« Reply #4 on: August 19, 2018, 07:51:32 PM »
Okay solved the mystery!
The panel is for a hybrid jetta, and being a hybrid seems to have an incompatible compressor configuration to a diesel/petrol Golf.

So for anyone looking to do this mod, avoid the 1K8907044J at all costs.
Mk5 GT TDI 170 - MY2007

Offline Christiank

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Re: Mk5 to Mk7/Scirocco/Passat B8 climatronic retrofit
« Reply #5 on: September 12, 2018, 09:13:36 PM »
If you take the panel from facelifted Scirocco (facelift panels match the wheels from Discover Media units)

Auto recirc and heated seats then these revision can be used if anyone is looking for panels :
AK, AC, BF and CE
MK5 TDI 2.0 MY2005 - FULL OF RETROFITS:
MK6 dashboard - MK6 R MFSW - Cruise Control - Discover Media 2 - 2016 Passat Climatronic panel - 8 Sensor parking kit - Interior door handle illumination - Door entry lights - TMPS - Custom made 3D cluster - Side Assist - TMPS Highline - Veyron modded LED taillights - NQSBBK front and rear upgrade... And a whole bunch of other stuff!