intermittent air conditioning

[martin1611]

Hi people, my air con started to play up last week, ive taken it to have the gas recovered and regased, replaced the high pressure sensor, still no joy

just done a scan of the car and have the following info

could someone place some light on this because i was thinking its the compressor

should i remove the fault codes and rescan, some could be old ones maybe ??????

VCDS Version: Release 11.11.3

Data version: 20120401

Friday,06,July,2012,16:16:06:32803

Chassis Type: 1K0

Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72

VIN: TMBEH21Z Mileage: 125940km/78255miles

00-Steering Angle Sensor -- Status: OK 0000

01-Engine -- Status: Malfunction 0010

03-ABS Brakes -- Status: OK 0000

08-Auto HVAC -- Status: Sporadic communication error 1000

09-Cent. Elect. -- Status: Malfunction 0010

15-Airbags -- Status: OK 0000

16-Steering wheel -- Status: OK 0000

17-Instruments -- Status: Malfunction 0010

19-CAN Gateway -- Status: Malfunction 0010

25-Immobilizer -- Status: OK 0000

42-Door Elect, Driver -- Status: OK 0000

44-Steering Assist -- Status: OK 0000

46-Central Conv. -- Status: Malfunction 0010

52-Door Elect, Pass. -- Status: OK 0000

56-Radio -- Status: Cannot be reached 1100

62-Door, Rear Left -- Status: Malfunction 0010

72-Door, Rear Right -- Status: OK 0000

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

Address 01: Engine Labels: None

Part No SW: CUSTOM-CODE HW: 03G 906 018 EL

Component: JBS PPD DPF G OFF

Revision: --H32--- Serial number: SKZ7Z0F3813160

Coding: 0000072

Shop #: WSC 66565 257 00032

VCID: 234FDE58E2CED91

1 Fault Found:

005685 - Powertrain Data Bus

P1635 - 009 - Missing Message from A/C Controller - Intermittent

Freeze Frame:

Fault Status: 00100100

Fault Priority: 0

Fault Frequency: 1

Reset counter: 33

Mileage: 125781 km

Time Indication: 0

Date: 2000.00.00

Time: 14:38:22

Freeze Frame:

RPM: 800 /min

Torque: 32.0 Nm

Speed: 0.0 km/h

0.00 %

Voltage: 14.01 V

Bin. Bits: 00000000

Bin. Bits: 00000000

Readiness: N/A

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

Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl

Part No SW: 1K0 907 379 AC HW: 1K0 907 379 AC

Component: ESP FRONT MK60 0101

Revision: 00H11001

Coding: 0006786

Shop #: WSC 73430 790 00000

VCID: 73EFEE1812AE091

No fault code found.

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

Address 08: Auto HVAC Labels: 1K0-907-044.lbl

Part No: 1Z0 907 044 H

Component: ClimatronicPQ35 084 0305

Shop #: WSC 00000 000 00000

VCID: 3B7F06387A7E811

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: 00000004470798

Coding: 01880F030004140000110D000000000000087F075C

Shop #: WSC 73430 790 08192

VCID: 2B5F36788A1E111

Subsystem 1 - Part No: 1Z2 955 119 A Labels: 1KX-955-119.CLB

Component: Wischer SK351 012 0401

Coding: 00063477

Shop #: WSC 73430

1 Fault Found:

01320 - Control Module for Climatronic (J255)

004 - No Signal/Communication - Intermittent

Freeze Frame:

Fault Status: 00100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 16

Mileage: 125781 km

Time Indication: 0

Freeze Frame:

ON

Voltage: 14.00 V

ON

ON

OFF

OFF

OFF

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

Address 15: Airbags Labels: 1K0-909-605.lbl

Part No SW: 1K0 909 605 T HW: 1K0 909 605 T

Component: Q4 AIRBAG VW8 020 2300

Revision: 05020000 Serial number: 0038PD0TKD9Y

Coding: 0020788

Shop #: WSC 73430 790 00000

VCID: 3D7B0820646A8F1

No fault code found.

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

Address 16: Steering wheel Labels: 1K0-953-549-MY8.lbl

Part No SW: 1K0 953 549 BC HW: 1K0 953 549 BC

Component: Lenksäulenmodul 036 0070

Coding: 0000042

Shop #: WSC 24066 576 88149

VCID: 74EDED0417A00E9

No fault code found.

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

Address 17: Instruments Labels: 1K0-920-xxx-17.lbl

Part No SW: 1Z0 920 912 E HW: 1Z0 920 912 E

Component: KOMBIINSTRUMENT VD1 1610

Revision: V1610056 Serial number: SKZ7Z0F3813160

Coding: 0003401

Shop #: WSC 28051 576 92332

VCID: 37771A084656A51

1 Fault Found:

00562 - Sensor for Oil Level/Temperature (G266)

010 - Open or Short to Plus - Intermittent

Freeze Frame:

Fault Status: 00101010

Fault Priority: 2

Fault Frequency: 1

Reset counter: 16

Mileage: 125781 km

Time Indication: 0

Date: 2000.00.00

Time: 14:30:44

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

Address 19: CAN Gateway Labels: 1K0-907-530.lbl

Part No SW: 1K0 907 530 H HW: 1K0 907 951

Component: J533__Gateway H12 0150

Revision: H12 Serial number: 31001069130043

Coding: 3D3F034007001303

Shop #: WSC 73430 790 00000

VCID: 2C5D35648F10169

3 Faults Found:

01305 - Databus for Infotainment

004 - No Signal/Communication

Freeze Frame:

Fault Status: 01100100

Fault Priority: 1

Fault Frequency: 1

Reset counter: 32

Mileage: 43016 km

Time Indication: 0

Date: 2000.00.00

Time: 13:11:57

01304 - Radio

004 - No Signal/Communication

Freeze Frame:

Fault Status: 01100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 32

Mileage: 43016 km

Time Indication: 0

Date: 2000.00.00

Time: 13:12:01

01320 - Control Module for Climatronic (J255)

004 - No Signal/Communication - Intermittent

Freeze Frame:

Fault Status: 00100100

Fault Priority: 2

Fault Frequency: 1

Reset counter: 15

Mileage: 125781 km

Time Indication: 0

Date: 2000.00.00

Time: 14:38:24

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

Address 25: Immobilizer Labels: 1K0-920-xxx-25.clb

Part No SW: 1Z0 920 912 E HW: 1Z0 920 912 E

Component: IMMO VD1 1610

Revision: V1610056 Serial number: SKZ7Z0F3813160

Shop #: WSC 00000 000 00000

VCID: 37771A084656A51

No fault code found.

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

Address 42: Door Elect, Driver Labels: 1K0-959-701-MIN3.lbl

Part No SW: 1T0 959 701 D HW: 1T0 959 701 D

Component: Tuer-SG 005 0944

Coding: 0000756

Shop #: WSC 73430 790 00000

VCID: 387519344B48AA9

No fault code found.

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

Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb

Part No: 1K2 909 144 L

Component: EPS_ZFLS Kl.074 H07 1806

Shop #: WSC 28051 576 92332

VCID: 356B10005C5A571

No fault code found.

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

Address 46: Central Conv. Labels: 1K0-959-433-MAX.clb

Part No SW: 1K0 959 433 BT HW: 1K0 959 433 BT

Component: KSG PQ35 G2 020 0203

Revision: 00020000 Serial number: 00000000000000

Coding: 18801A085283007F3F04850540085F96907CA0

Shop #: WSC 24066 576 88149

VCID: 830F3ED8C20EB91

Subsystem 5 - Part No: 1Z0 951 171

Component: Innenraumueberw.008 4801

Coding: 00000000

Shop #: WSC 24066

Part No: 1K0 951 605 C

Component: LIN BACKUP HORN H03 1301

Component: NGS n.mounted

2 Faults Found:

01320 - Control Module for Climatronic (J255)

004 - No Signal/Communication - Intermittent

Freeze Frame:

Fault Status: 00100100

Fault Priority: 4

Fault Frequency: 1

Reset counter: 16

Mileage: 125781 km

Time Indication: 0

Date: 2000.00.00

Time: 14:38:25

01135 - Interior Monitoring Sensors

004 - No Signal/Communication - Intermittent

Freeze Frame:

Fault Status: 00100100

Fault Priority: 4

Fault Frequency: 2

Reset counter: 240

Time Indication: 0

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

Address 52: Door Elect, Pass. Labels: 1K0-959-702-MIN3.lbl

Part No SW: 1T0 959 702 D HW: 1T0 959 702 D

Component: Tuer-SG 005 0944

Coding: 0000756

Shop #: WSC 73430 790 00000

VCID: 39731C307042B31

No fault code found.

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

Address 56: Radio

Cannot be reached

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

Address 62: Door, Rear Left Labels: 1K0-959-703-GEN3.lbl

Part No SW: 1K0 959 703 J HW: 1K0 959 703 J

Component: Tuer-SG 005 0907

Coding: 0000144

Shop #: WSC 73430 790 1012544

VCID: 37771A084656A51

1 Fault Found:

00934 - Electric Window Motor; Rear Left (V26)

005 - No or Incorrect Basic Setting / Adaptation - Intermittent

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

Address 72: Door, Rear Right Labels: 1K0-959-704-GEN3.lbl

Part No SW: 1K0 959 704 J HW: 1K0 959 704 J

Component: Tuer-SG 005 0907

Coding: 0000144

Shop #: WSC 73430 790 1012544

VCID: 387519344B48AA9

No fault code found.

End ---------------------------------------------------------------------

[martin1611]

anyone ?

no air con at all now, VCDS says the pump is turning and with a load of 1.2n of force.

[Anddenton]

The fault codes relating to the air con all look recent, have you checked all of the fuses? it sounds a bit like power is missing to something, I take it the little LCD's still come to life on your climatronic unit and the fan still blows?

Also I wonder if the G266 sensor has anything to do with the air con? (Maybe someone that knows more can chip in here) as you are getting a fault on that.

Radio/infotainment faults look like old faults, I'd be tempted to clear them all down and see what reoccurs. I do know that in some cases once the fault is fixed the systems still don't work until the fault codes are cleared.

[martin1611]

Hi anddenton, I must admit that I was pulling fuses to check them,

Just one thing I've noticed is that when the comp was running it sounded louder than what I can remember from befor. Maybe the comp shaft has snapped .

I go rescan now :p

[Lofty79]

mines intermittent too. it worked for 3 years, not for the last 6 and a half years, fingers crossed its just a glitch...........bit too aircony for me,,,, ill just wait

Edited 9 July, 2012 by Lofty79

[martin1611]

But how do you put up with steamed up windows lol. Does my head in lol

Can anyone get some live data on the "08 auto HVAC" showing compressor load etc, mine is saying 1.2n load at tickover.

Please

[cheezemonkhai]

Check the wiring and power supply the the AC compressor and the like.

[martin1611]

Evening all, been playing with the Vcds watching the air con pump load / amps to the pump / rad fan speeds, ok the air con will run when the temp is set to low eg feeding the compressor with 0.7 amps ish, when I select Eco mode compressor load / fan etc all zero off then when I turn it back to auto vcds says its running but the comp load is only 1.2n for sometimes upto 3 mins then it go's to 4.8n (blows cold)

Can I assume it's the solenoid in the end of the pump not working correct (sticking etc)

Oh and turned the radio off in the can gateway, did a rescan and no faults

Cheeze - there is 12v feed to the ac pump with ac on and 3.7v with ac off (Eco mode)

Rgs Martin