2014 Audi S5 No cold air from AC

   #1  
Fuzk

Fuzk

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My aircon has stopped working.

There are not fault codes (related to this I thing)
I have replaced the pressure sensor (G395)
The AC button illuminates when I press it and stays on.

What can I do to further troubleshoot this please?




Aircon Off:
https://drive.google.com/file/d/1iPp...ew?usp=sharing


Aircon On:
https://drive.google.com/file/d/1B04...ew?usp=sharing



Code: 
Tuesday,17,June,2025,05:16:41:36251
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 25.3.1.1 (x64)
Data version: 20250415 DS365.0
www.Ross-Tech.com




Chassis Type: 8T-AU48 (8R0)
Scan: 01 02 03 05 08 09 13 15 16 17 19 20 36 42 44 46 47 52 53 56
          5C 5F 62 69 6C 72 A9

VIN: WAUZZZ8T4DA069559   Mileage: 206300km-128188miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
20-High Beam Assist. -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
5C-Lane Maintain. -- Status: OK 0000
5F-Information Electr. -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
69-Trailer -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CGWC)       Labels:. 06E-907-551-CGW.clb
   Part No SW: 8K5 907 551 D    HW: 4H0 907 551
   Component: 3.0l V6 TFSIH07 0005 
   Revision: --H07---    CVN: B4084739
   Coding: 1A250034055601020000
   Shop #: WSC 05157 002 1048576
   ASAM Dataset: EV_ECM30TFS0218K5907551D 001005
   ROD: EV_ECM30TFS0218K5907551D.rod
   VCID: 377625788EC01F233B-8062
   VINID: 9D196AAAA2241144401891452423DA5BA1

No fault code found.
Readiness: 1110 0001

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0B5-927-156.clb
   Part No SW: 8K2 927 156 L    HW: 0B5 927 156 J
   Component: 0B5 30TFSIRdW H01 0011 
   Revision: --H01---    CVN: 00001D3B
   Coding: 000001
   Shop #: WSC 06342 000 00000
   ASAM Dataset: EV_TCMDL501021 001025
   ROD: EV_TCMDL501021.rod
   VCID: 3F864D58A6F02763F3-806A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V1.clb
   Part No SW: 8K0 907 379 CK    HW: 8K0 907 379 CK
   Component: ESP8 quattro  H09 0100 
   Revision: --------    Serial number: --------------
   Coding: 29954C
   Shop #: WSC 05157 002 1048576
   VCID: 040C82B4879684BBEE-8050

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 GD    HW: 8K0 907 064 FD
   Component: BCM2 2.0      H12 0633 
   Revision: 00002001   
   Coding: 01A44040000000000000
   Shop #: WSC 06342 000 00000
   VCID: 78F4E644CB5ED05BF2-802C

   Subsystem 1 - Part No SW: 8K0 959 754 AH    HW: 8K0 959 754 AH
   Component: FBSAUDIB8 IDG  H71 0083
   Serial number: 0513000020367006   

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:. 8Kx-820-043-3Z.clb
   Part No SW: 8K1 820 043 T    HW: 8K1 820 043 T
   Component: KLIMA 3 ZONEN H04 0121 
   Revision: C1000000    Serial number: 01230320130250
   Coding: 6620028080
   Shop #: WSC 06342 000 00000
   VCID: 39722340B0D40953CD-806C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DH    HW: 8K0 907 063 DH
   Component: BCM1 1.0      H16 0103 
   Revision: 08016001    Serial number: 00000044724702
   Coding: 2600C0108074AFE2018140C300001D0D0F9CE30826090201000008004401030100000034000000
   Shop #: WSC 05157 002 104857
   VCID: 78F4E644CB5ED05BF2-802C

   Subsystem 1 - Part No SW: 8T1 955 119 D    HW: 8J1 955 119   Labels: 1KX-955-119.CLB
   Component: WWS 180313  H15 0080
   Serial number: SWF13030185331     
   Coding: 00FD11

   Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0002
   Serial number: 21111298           
   Coding: 02005D

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031
   Serial number: 00000000001303131291

   Subsystem 4 - Part No SW: 4H0 907 658     HW: 4H0 907 658
   Component: AQ_Hum_Sensor  H03 0003
   Serial number: 60998B96000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels: None
   Part No SW: 8K0 907 561 B    HW: 8K0 907 561 B
   Component: ACC3          H11 0100 
   Serial number: 00000000000000
   Coding: 003369
   Shop #: WSC 05157 002 1048576
   VCID: 31621B6068A4C11375-8064

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
   Part No SW: 8K0 959 655 N    HW: 8K0 959 655 N
   Component: AirbagVW-AU10 H45 0610 
   Serial number: 003KFD993UBR   Dataset Number: 8T0909602M  0005
   Coding: 30513938363030303030554A304C38543053
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_AirbaECUVWAUDI010 003010
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 48945684F33E60DB42-801C

   Crash sensor for side airbag: driver side:
   Serial number: 6334MSME78536C29P

   Crash sensor for side airbag: passenger side:
   Serial number: 6344MSME7A204653B

   Rear Side Airbag Crash Sensor (on driver's side):
   Serial number: 6352QSME142D2D64M

   Passenger side rear thorax airbag crash sensor:
   Serial number: 6362QSME052D1358F

   Crash sensor for front airbag: driver side:
   Serial number: 63732SME6E2C02765

   Crash sensor for front airbag: passenger side:
   Serial number: 63832SME202F4542Y

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 M    HW: 8K0 953 568 M
   Component: Lenks.Modul   H03 0005 
   Revision: --------    Serial number: 90372MCE0000C
   Coding: 0000FE
   Shop #: WSC 06342 000 00000
   VCID: 448C42B4C71644BBAE-8010

   Component: E221 - MFL  H03 0004

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8T0 920 932 D    HW: 8T0 920 932 D
   Component: KOMBIINSTR.   H35 0556 
   Revision: 00300000    Serial number: UV5254F3E     
   Coding: 13E7310046010008010000
   Shop #: WSC 06342 000 00000
   VCID: 39722340B0D40953CD-806C

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 P    HW: 8R0 907 468 D
   Component: GW-BEM 5CAN-M H11 0055 
   Revision: 1Z100027    Serial number: 2741Z133080207
   Coding: 80CF07FF00
   Shop #: WSC 06342 000 00000
   VCID: 4C9C6A94EF468CFB66-8018

   Subsystem 1 - Part No SW: 8T0 915 181     HW: 8T0 915 181
   Component: J367-BDMHella  H03 8041
   Serial number: 4109050203         

   Subsystem 2 - Part No SW: 8K0 959 663 B    HW: 8K0 959 663 B
   Component: J532_DCDCStab  H05 0006
   Serial number: 13072000701011200410

No fault code found.

-------------------------------------------------------------------------------
Address 20: High Beam Assist. (J844)       Labels:. 8K0-857-511.clb
   Part No SW: 8T0 857 511 AD    HW: 8T0 857 511 AD
   Component: FLA           H04 0012 
   Revision: AA001002   
   Coding: 02019864747464545425363E00
   Shop #: WSC 06342 000 00000
   VCID: 7CFCFA54FF66FC7B96-8028

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels:. 8T0-959-760.clb
   Part No SW: 8K0 959 760 D    HW: 8K0 959 760 D
   Component: MEM-FS        H06 0076 
   Revision: AA000000    Serial number: 00000054991849
   Coding: 01581300000000000000
   Shop #: WSC 06342 000 00000
   VCID: 3B7E3948BAE83B43DF-806E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8T0 959 793 P    HW: 8T0 959 793 G
   Component: TSG FA        H09 0304 
   Revision: --------    Serial number: --------------
   Coding: 011C02625E00450005
   Shop #: WSC 06342 000 00000
   VCID: 56A888FC218AC62BC0-8002

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8K0 909 144 F    HW: 8K0 909 144 B
   Component: RCEPS         H37 0507 
   Revision: 00001000    Serial number: 0001309815 Dataset Number: 8T0909852H  0018
   Coding: 100001010001
   Shop #: WSC 06324 000 00000
   ASAM Dataset: EV_RCEPSAU48X 008014
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 346C12749FB6F43B1E-8060

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 GD    HW: 8K0 907 064 FD
   Component: BCM2 2.0      H12 0633 
   Revision: 00002001    Serial number: 0303053435   
   Coding: 0100062020B90080803004368000000F
   Shop #: WSC 06342 000 00000
   VCID: 78F4E644CB5ED05BF2-802C

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 8T1 035 223 A    HW: 8T1 035 223 A
   Component: DSP Prem      H05 0030 
   Revision: 00005001    Serial number: 94813012238202
   VCID: 2D5A0710749CA5F351-8078

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8T0 959 792 P    HW: 8T0 959 792 G
   Component: TSG BF        H09 0304 
   Revision: --------    Serial number: --------------
   Coding: 011C02225E00450005
   Shop #: WSC 06342 000 00000
   VCID: 55AA8FF03C8CCD33C9-8000

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 L    HW: 8K0 907 801 J
   Component: EPB-4         H01 0003 
   Revision: --------    Serial number: 10000000185738
   ASAM Dataset: EV_ParkiBrake 001027
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 3874264483DE105B32-806C

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels:. 4F0-035-0xx-56.clb
   Part No SW: 4G1 035 053 G    HW: 4G1 035 053
   Component: Radio U Basic H41 0121 
   Revision: AB001007    Serial number: 227C+0D7713947
   Coding: 010003010000000001
   Shop #: WSC 06342 000 00000
   VCID: 234EE12822586383F7-8076

No fault code found.

-------------------------------------------------------------------------------
Address 5C: Lane Maintain.        Labels: None
   Part No SW: 8T0 907 217 A    HW: 4E0 907 217 C
   Component: J759 HC             0040 
   Revision: 00H08006    Serial number: 60021332100064
   Coding: 0122005
   Shop #: WSC 05157 002 1048576
   VCID: 3776257846C01F233B-8062

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R1 035 666 B    HW: 8R1 035 666 C
   Component: H-BN-EU       H45 0639 
   Revision: --------    Serial number: 205C10D7576947
   Coding: 14010004020689EF6D80EB5E00000403E40000020000000000
   Shop #: WSC 05157 002 1048576
   VCID: 3776257886C01F233B-8062

   Subsystem 1 - Part No: 8R0 060 884 GS
   Component: EUR 2020  3001

   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104
   Serial number: A130CX0D2685592     

   Subsystem 3 - Part No SW: 8T0 919 611 K    HW: 8T0 919 611 B
   Component: E0380 Bedient  H02 0030
   Serial number: 00000001449214     

   Subsystem 4 - Part No: 8R0 060 961 E
   Component: CD-Database  4949

1 Fault Found:
03276 - Please Check Software Version Management
            000 - -
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 205
                    Mileage: 206306 km
                    Time Indication: 0
                    Date: 2025.06.17
                    Time: 05:10:03

             Freeze Frame:
                    Text: DUA130,Front,M,0,0,6                   


-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HL        H07 0304 
   Revision: --------    Serial number: --------------
   Coding: 010C02224000450005
   Shop #: WSC 06342 000 00000
   VCID: 59B283C05094E953ED-800C

No fault code found.

-------------------------------------------------------------------------------
Address 69: Trailer (J345)       Labels:. 8K0-907-383.clb
   Part No SW: 8K0 907 383 E    HW: 8K0 907 383 E
   Component: Anhaenger     H09 0100 
   Revision: 1A001001    Serial number: 00000193656584
   Coding: 0100000000000000
   Shop #: WSC 00000 000 00000
   VCID: 3668287C81CAE62B20-8062

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8T0 907 441 C    HW: 4L0 907 441 B
   Component: J772__Rearview      0040 
   Revision: --H03---    Serial number: 525PA8-J0190BY
   Coding: 1022006
   Shop #: WSC 06325 000 00000
   VCID: 387426444BDE105B32-806C

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-794.clb
   Part No SW: 8T0 959 795 Q    HW: 8T0 959 795 H
   Component: TSG HR        H07 0304 
   Revision: --------    Serial number: --------------
   Coding: 010C02224000450005
   Shop #: WSC 06342 000 00000
   VCID: 59B283C05094E953ED-800C

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8K0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0005 
   Serial number: 130124200456
   ASAM Dataset: EV_SoundActuaGen2AU64X 002005
   ROD: EV_SoundActuaGen2AU64X_002_AU48.rod
   VCID: 72E0D46CA522BA0BCC-8026

No fault code found.

End-------------------------(Elapsed Time: 04:17)--------------------------
-------------------------------1 Fault Found-------------------------------
 
   #2  
SaVAGeSoot

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Have a read

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   #3  
Ziddywerks

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What was the ambient temp when the screenshots were taken? I would say system is either empty or ac compressor grenaded showing 6.0 bar with ac compressor running. System is low on charge,empty or compressor shit the bed. With AC running fully charged system will show 12-17bar of pressure not 6bar. Check charge in system put dye when recharging system.
 
   #4  
Fuzk

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EuroX said:
What was the ambient temp when the screenshots were taken? I would say system is either empty or ac compressor grenaded showing 6.0 bar with ac compressor running. System is low on charge,empty or compressor shit the bed. With AC running fully charged system will show 12-17bar of pressure not 6bar. Check charge in system put dye when recharging system.
Click to expand...
Outside temp was about 20c

Is the a bad regulating valve (N280) out of the question?
 
   #5  
Ziddywerks

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Fuzk said:
Outside temp was about 20c

Is the a bad regulating valve (N280) out of the question?
Click to expand...
Why condemn a N280 when we don't even know if there is sufficient charge in the system? Start with the basics verify charge. Not only that but according to the screenshots a/c compressor was on at full capacity and duty cycle.
 
   #8  
Dr Sheldon

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Fuzk said:
Address 08: Auto HVAC No fault code found.
Click to expand...

So every one is at the party but the lady is not singing ?

Pressure must be ok so it is likely that enough of the refrigerant has escaped to paralyse cooling.

Basics - Evacuate, Vacuum, Recharge
 
   #9  
Jef

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If you don't have a shut down code and no AC, then odds are you have a compressor issue. You might get lucky with a N280 swap, otherwise plan on replacing the compressor. I don't know about this generation of compressor, but do they also blow crap into the system so the AC has to be flushed and dryer replaced?
 
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