Just out of curiosity did you get a scan done?
Mine was working fine until I had my engine replaced (long story), scanned it, came up with 3 error codes relating to low pressure, faulty control modules etc, I thought they never regassed the system but turned out to be a faulty sensor.
Dealer replaced the sensor and all is well.
Get it scanned first.
Right I done a scan and this is what came up, can you remeber what sensors went on yours ? or what you replaced ? Would the faults on mine be what is casuing the aircon not to work ?
Any advice would be great !
Address 08: Auto HVAC (J255) Labels: Redir Fail!
Part No SW: 8T2 820 043 AG HW: 8T2 820 043 AG
Component: KLIMA 3 ZONEN H08 0171
Revision: D1000000 Serial number: 01301020091267
Coding: 34040000
Shop #: WSC 00137 210 91044
VCID: 77F7F505C6D6651
3 Faults Found:
00457 - Control Module for Network (J519)
013 - Check DTC Memory
Freeze Frame:
Fault Status: 01101101
Fault Priority: 6
Fault Frequency: 115
Reset counter: 9
Mileage: 191809 km
Time Indication: 0
Date: 2016.05.05
Time: 17:07:21
00256 - A/C Pressure/Temperature Sensor (G395)
008 - Implausible Signal
Freeze Frame:
Fault Status: 01101000
Fault Priority: 7
Fault Frequency: 115
Reset counter: 9
Mileage: 191809 km
Time Indication: 0
Date: 2016.05.05
Time: 17:07:21
Freeze Frame:
Temperature: 23.0°C
01187 - Rear Temperature Flap Positioning Motor (V137)
002 - Lower Limit Exceeded
Freeze Frame:
Fault Status: 01100010
Fault Priority: 3
Fault Frequency: 5
Reset counter: 5
Mileage: 192482 km
Time Indication: 0
Date: 2016.06.03
Time: 12:42:51
Freeze Frame:
Voltage: 12.50 V
Temperature: 28.0°C
Temperature: 28.0°C
Count: 10000
Count: 9676
Bin. Bits: 01000000
Bin. Bits: 00000101
Time: 5.00 s
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels: 8K0-907-063.clb
Part No SW: 8K0 907 063 D HW: 8K0 907 063 D
Component: BCM1 1.0 H22 0253
Revision: 05022001 Serial number: 00000000295612
Coding: 260050914034AF010001000300001D0D001D270800010141000000
Shop #: WSC 06335 000 00000
VCID: 30650E196338729
Subsystem 1 - Part No SW: 8K2 955 119 A HW: 8T2 955 119 Labels: 1KX-955-119.CLB
Component: WWS 150109 H05 0070
Coding: 00FD11
Subsystem 2 - Part No SW: 8K0 955 559 HW: 8K0 955 559 Labels: 8K0-955-559.CLB
Component: RLS H04 0003
Coding: 025028
Subsystem 3 - Part No SW: 8K0 941 531 AA HW: 8K0 941 531 AA
Component: E1 - LDS H07 0080
2 Faults Found:
01854 - Heated Seat; Right Front (Z46)
012 - Electrical Fault in Circuit
Freeze Frame:
Fault Status: 01101100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 244
Mileage: 192702 km
Time Indication: 0
Date: 2016.07.07
Time: 16:37:00
00256 - A/C Pressure/Temperature Sensor (G395)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 3
Fault Frequency: 249
Reset counter: 9
Mileage: 191808 km
Time Indication: 0
Date: 2016.05.05
Time: 17:00:00
I don't know if this is related to it as well
Address 17: Instruments (J285) Labels: 8T0-920-xxx-17.clb
Part No SW: 8K0 920 980 B HW: 8K0 920 980 B
Component: KOMBIINSTR. H18 0224
Revision: 00000000 Serial number: 9E3735JD8
Coding: 2F04100003002600010000
Shop #: WSC 06335 000 00000
VCID: 31630B1D68327B1
1 Fault Found:
00003 - Control Module
005 - No or Incorrect Basic Setting / Adaptation
Freeze Frame:
Fault Status: 01100101
Fault Priority: 6
Fault Frequency: 1
Reset counter: 163
Mileage: 190903 km
Time Indication: 0
Date: 2016.04.11
Time: 13:07:52
Address 19: CAN Gateway (J533) Labels: 8T0-907-468.clb
Part No SW: 8T0 907 468 P HW: 8T0 907 468 K
Component: GW-BEM 4CAN-M H09 0095
Revision: EB500046 Serial number: 4600E0910783BA
Coding: 000303
Shop #: WSC 06335 000 00000
VCID: 4E9970E119CC049
Subsystem 1 - Part No SW: 8K0 915 181 B HW: 8K0 915 181 B
Component: J367-BDM H04 0150
1 Fault Found:
03041 - Energy Management Active
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 44
Reset counter: 32
Mileage: 192692 km
Time Indication: 0
Date: 2016.06.29
Time: 15:46:00