2006 VW Rabbit MK5 - A/C troubleshooting

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strichzwei

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I inherited this well cared for vehicle with no-nop climatic (not climatronic) A/C, blower fans work, brand new pollen filter, all fuses are good but it just blows warm.

While I am somewhat mechanically inclined, A/C is a bit of black art to me 😉. I do not have A/C gauges and would not know how to use them, although willing to give this a try if there is a good tutorial somewhere. I have done a lot of research but did not understand everything I read about troubleshooting the A/C. Below is what I have done so far, if someone knowledgeable could give me some pointers, that would be much appreciated. Please see full auto scan below, along with some supporting images:

I have no A/C related fault codes

All fuses are good

The center bolt of the sanden (model U4568) compressor spins

I reset the basic settings

Compressor code: 0 (zero) with A/C running

Fans work but neither come on when A/C is turned on (not sure if that is supposed to trigger the fan?)

Thanks,
Scott

(For some reason I just cannot get my images to post, not sure what I am doing wrong, certainly user error! But I notice if you put the following url into your browser you can see the images or if you click it, it will link you to the IMGUR images.) There are images here of measuring blocks and the advanced measuring values:


https://imgur.com/a/e4PZP1A


Code:
Monday,13,February,2023,13:33:02:38585
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 22.9.0.0 (x64) HEX-V2 CB: 0.4623.4
Data version: 20220830 DS341.0
www.Ross-Tech.com


VIN: WVWDR71K56W200765 License Plate:
Mileage: 96080km-59701mi Repair Order:



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 1K (1K0)
Scan: 01 02 03 08 09 0F 15 16 17 19 25 42 44 46 52 56 62 72

VIN: WVWDR71K56W200765 Mileage: 96080km-59701miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
0F-Digital Radio -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: Malfunction 0010
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
56-Radio -- Status: Malfunction 0010
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
-------------------------------------------------------------------------------
Address 01: Engine Labels: 06A-906-032-BGP.lbl
Part No SW: 07K 906 032 AQ HW: Hardware No
Component: 2.5l R5/4V G 6746
Revision: -------- Serial number: VWZ7Z0F3702817
Coding: 0000003
Shop #: WSC 01279 785 00200
VCID: 78A9E48BEEDA205BDF3-802C
VINID: 9E69D488705B1469C20001C614C4F1FF1E

2 Faults Found:
000152 - Intake Air Temperature Sensor 2 (G299)
P0098 - 002 - Signal too Low - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 95671 km
Time Indication: 0
Date: 2000.00.00
Time: 04:01:03

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 86.0°C
Temperature: -40.0°C
Absolute Pres.: 980.0 mbar
Voltage: 11.938 V

000275 - Intake Air Temp. Sensor (G42)
P0113 - 002 - Signal too High - Intermittent
Freeze Frame:
Fault Status: 00100010
Fault Priority: 0
Fault Frequency: 1
Reset counter: 255
Mileage: 95671 km
Time Indication: 0
Date: 2000.00.00
Time: 04:01:03

Freeze Frame:
RPM: 0 /min
Load: 0.0 %
Speed: 0.0 km/h
Temperature: 86.0°C
Temperature: -40.0°C
Absolute Pres.: 980.0 mbar
Voltage: 11.938 V

Readiness: 0000 0000

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 09G-927-750.clb
Part No SW: 09G 927 750 GJ HW: 09G 927 750 GJ
Component: AQ 250 6F 0833
Revision: 00H38000 Serial number:
Coding: 0000072
Shop #: WSC 01279 785 00200
VCID: 7F5B0F97CBF417639E9-802A

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl
Part No SW: 1K0 907 379 AA HW: 1K0 907 379 AA
Component: ESP FRONT MK60 0102
Revision: 00H13001
Coding: 0021122
Shop #: WSC 01279 785 00200
VCID: 71BFD9AF8DA0711318D-8024

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 1K0-820-047.lbl
Part No: 1K0 820 047 EC
Component: Climatic PQ35 090 0505
Shop #: WSC 00000 000 00000
VCID: 698FB1CFA57089D350D-803C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels:. 3C0-937-049-23-H.lbl
Part No SW: 3C0 937 049 E HW: 3C0 937 049 E
Component: Bordnetz-SG H37 1002
Revision: 00H37000 Serial number: 00000000225449
Coding: 10088F214004180000140000001400000028770B5C
Shop #: WSC 25152 444 54377
VCID: 2B030BC76F0C5BC3621-807E

Subsystem 1 - Part No: 1K1 955 119 C Labels: 1KX-955-119.CLB
Component: Wischer VW350 013 0402
Coding: 00063445
Shop #: WSC 25152

No fault code found.

-------------------------------------------------------------------------------
Address 0F: Digital Radio Labels: 8E0-035-593-XM.lbl
Part No SW: 8E0 035 593 E HW: 8E0 035 593 E
Component: SDAR XM H03 0080
Revision: 00000000 Serial number: AUZ4Z7F7047887
Shop #: WSC 00000 000 00000
VCID: 2B030BC76F0C5BC3621-807E

2 Faults Found:
00003 - Control Module
014 - Defective
Freeze Frame:
Fault Status: 01101110
Fault Priority: 5
Fault Frequency: 1
Reset counter: 160
Mileage: 3521 km
Time Indication: 0
Date: 2000.00.00
Time: 03:43:27

02788 - Internal Communications Error
000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 7
Fault Frequency: 11
Reset counter: 196
Mileage: 96050 km
Time Indication: 0
Date: 2000.00.00
Time: 02:27:46

Freeze Frame:
Bin. Bits: 00000010
Bin. Bits: 00000000


-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1K0-909-605.lbl
Part No SW: 1K0 909 605 P HW: 1K0 909 605 P
Component: 5L AIRBAG VW8R 032 7900
Revision: 03032000 Serial number: 0038FD05VXU9
Coding: 0013644
Shop #: WSC 01269 785 00200
VCID: 392F218F9550F953E0D-806C

Subsystem 1 - Part No: 1K0 959 339 D
Component: BF-Gewichtsens. 006 0006

Subsystem 2 - Serial number: 6332MSME0E6215324

Subsystem 3 - Serial number: 6342MSME0E0B4604B

Subsystem 4 - Serial number: 6352QSME0E2F2127K

Subsystem 5 - Serial number: 6362QSME0C792E75Y

Subsystem 6 - Serial number: 63727SME0A171B6A6

Subsystem 7 - Serial number: 63827SME0A172040S

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl
Part No SW: 1K0 953 549 AH HW: 1K0 953 549 AH
Component: J0527 034 0070
Coding: 0010022
Shop #: WSC 01279 785 00200
VCID: 78A9E48BEEDA205BDF3-802C

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 1K0-920-xxx-17.lbl
Part No: 1K0 920 953 C
Component: KOMBIINSTRUMENT VDD 4312
Coding: 0007203
Shop #: WSC 07228 444 53711
VCID: 2B030BC76F0C5BC3621-807E

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels:. 1K0-907-530-V1.clb
Part No SW: 1K0 907 530 F HW: 1K0 907 951
Component: Gateway H10 0120
Revision: H10 Serial number: 280010642511D7
Coding: 3F3F0360070002
Shop #: WSC 01279 785 00200
VCID: 2A0D0EC360F642CB997-807E

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb
Part No: 1K0 920 953 C
Component: IMMO VDD 4312
Shop #: WSC 00000 000 00000
VCID: 2B030BC76F0C5BC3621-807E

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN2.lbl
Part No: 1K0 959 701 K
Component: Tuer-SG 024 2373
Coding: 0001205
Shop #: WSC 01279 785 00200
VCID: 36352AB3A44E162B0DF-8062

2 Faults Found:
01552 - Motor for Central Locking; Drivers Door (V56); Lock
012 - Electrical Fault in Circuit
00928 - Locking Module for Central Locking; Front Driver Side (F220)
008 - Implausible Signal - Intermittent

-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-144-G2V2.clb
Part No: 1K1 909 144 K
Component: EPS_ZFLS Kl.5 D06 1701
Shop #: WSC 00000 000 00000
VCID: 333313A7B73C03032A1-8066

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels:. 1K0-959-433-MIN.clb
Part No: 1K0 959 433 AF
Component: KSG 0401
Coding: 13C803281B09058F880F048050CC
Shop #: WSC 00000 785 00200
VCID: 74B1D0BBF2B2443BF3B-8020

Subsystem 1 - Component: Sounder n.mounted

Subsystem 2 - Component: NGS n.mounted

Subsystem 3 - Component: IRUE n.mounted

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN2.lbl
Part No: 1K0 959 702 K
Component: Tuer-SG 024 2373
Coding: 0001205
Shop #: WSC 01279 785 00200
VCID: 372B27B7A344EF23169-8062

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio Labels: 1K0-035-1xx-56.clb
Part No SW: 1K0 035 180 C HW: 1K0 035 180 C
Component: Radio PM6 016 0017
Revision: 00016000 Serial number: VWZ5Z7F2072215
Coding: 0040400
Shop #: WSC 01279 785 00200
VCID: 2019ECEB16CA889BC73-8074

1 Fault Found:
00821 - Antenna 2 for Radio (R93)
011 - Open Circuit
Freeze Frame:
Fault Status: 01101011
Fault Priority: 3
Fault Frequency: 2
Reset counter: 156
Mileage: 96050 km
Time Indication: 0
Date: 2000.00.00
Time: 02:22:35


-------------------------------------------------------------------------------
Address 62: Door, Rear Left Labels: 1K0-959-703-GEN2.lbl
Part No: 1K0 959 703 F
Component: Tuer-SG 021 2438
Coding: 0000144
Shop #: WSC 01279 785 00200
VCID: 333313A7B73C03032A1-8066

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right Labels: 1K0-959-704-GEN2.lbl
Part No: 1K0 959 704 F
Component: Tuer-SG 021 2438
Coding: 0000144
Shop #: WSC 01279 785 00200
VCID: 343110BBB232043B33B-8060

No fault code found.

End----------(Elapsed Time: 01:08, VBatt start/end: 13.5V/13.8V)-----------
 
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   #2  

EuroX

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Code wrap please. Based on the picture posted I would say compressor is coming on. The question is whether there is a charge in the system. I would check if there a charge in the system if not get it recharge with dye. If system has a charge check pressure on high and low side of system. If system pressure is even on both side with AC on your compressor is shot to shit.
 
   #3  

strichzwei

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EuroX, thanks for that feedback, I will get those readings.
Scott
 
   #4  

Jef

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General rule of thumb... no DTCs + no shutdown code = bad compressor. :(
 
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   #5  

EuroX

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General rule of thumb... no DTCs + no shutdown code = bad compressor. :(
I never load the parts cannon I like to know for a fact.
 
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MVB_

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You only show 2bar /29psi in system.
 
   #8  

MVB_

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G65 sensor for high pressure on the high side. The only way to know if you have the correct charge is to have the system evacuated and charge it back by the correct weight.
 
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