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Thread: help needed, air con was intermittent and then suddenly stopped working

  1. #1
    Verified VCDS User dayrider's Avatar
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    Question help needed, air con was intermittent and then suddenly stopped working

    when ac is on, there is no cold air and the radiator fans don't turn on.

    changed the G65 pressure sensor, had no effect. pressure sensor show 7 bar pressure

    checked refrigeration gas with gauges and low side 80psi - high side 60psi , but even though these aint the ideal pressures they would correct themselves if the ac kicked in.

    did hvac test and there is current going to compressor.

    did an output test and when it tests the RCV the radiator fans kick in, so they must be ok?

    and looked on ross-tech wiki for the following fault and couldn't find anything -

    005697 - Please check DTC Memory of A/C Controller P1641 - 000 - - Intermittent


    any help on what to try next would be great :-)



    Code:
    Sunday,23,July,2017,12:56:08:21944
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x86
    VCDS Version: 17.1.3.0  HEX-V2 CB: 0.4401.4
    Data version: 20170320 DS267.7
    www.Ross-Tech.com
    
    
    VIN: WVWZZZ1KZ7B035671   License Plate: VA06OZP
    Mileage: 190270km-118228mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 1K (1K0)
    Scan: 01 03 08 09 15 16 17 19 25 42 44 46 52 56 62 72 7D
    
    VIN: WVWZZZ1KZ7B035671   Mileage: 190270km-118228miles
    
    00-Steering Angle Sensor -- Status: OK 0000
    01-Engine -- Status: Malfunction 0010
    03-ABS Brakes -- Status: OK 0000
    08-Auto HVAC -- Status: OK 0000
    09-Cent. Elect. -- Status: OK 0000
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: OK 0000
    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: Malfunction 1010
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    7D-Aux. Heat -- Status: Malfunction 0010
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: 03G-906-016-BKD.clb
       Part No SW: 03G 906 021 KK    HW: 03G 906 021 KK
       Component: R4 2,0L EDC  000SG  9821  
       Revision: --H02---    Serial number: VWZ7Z0F7057135
       Coding: 0000072
       Shop #: WSC 00521 210 75581
       VCID: 72BED2E208AA7A172BD-8026
    
    3 Faults Found:
    005697 - Please check DTC Memory of A/C Controller 
                   P1641 - 000 -  - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 6
                        Fault Frequency: 5
                        Reset counter: 255
                        Mileage: 189761 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:01:33
    
                 Freeze Frame:
                        RPM: 798 /min
                        Speed: 0.0 km/h
                        Load: 0.0 %
                        Voltage: 13.76 V
                        Bin. Bits: 00000100
                        Temperature: 69.3°C
                        (no units): 0.0
    
    012546 - Motor for Intake Manifold Flap (V157) 
                   P3102 - 000 - No Signal - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 2
                        Fault Frequency: 2
                        Reset counter: 255
                        Time Indication: 0
    
                 Freeze Frame:
                        RPM: 0 /min
                        Speed: 0.0 km/h
                        Load: 0.0 %
                        Voltage: 12.92 V
                        Bin. Bits: 00000100
                        Torque: 0.0 Nm
                        Torque: 351.4 Nm
    
    005746 - Coolant Fan Control 1 
                   P1672 - 000 - Open or Short to Ground - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 3
                        Fault Frequency: 3
                        Reset counter: 255
                        Mileage: 189773 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 17:18:42
    
                 Freeze Frame:
                        RPM: 798 /min
                        Speed: 0.0 km/h
                        Load: 0.0 %
                        Voltage: 14.14 V
                        Bin. Bits: 00000100
                        Temperature: 82.8°C
                        Duty Cycle: 9.7 %
    
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    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: 0023170
       Shop #: WSC 00046 412 16384
       VCID: 73B0D7E677B0731F20B-8026
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC        Labels: 1K0-820-047.lbl
       Part No: 1K0 820 047 FH
       Component: Climatic PQ35   120 0606  
       Shop #: WSC 00000 000 00000
       VCID: 6FB8DB961B9857FFC43-803A
    
    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: 00000004308857
       Coding: E5890F2700041500001400001400000000087F075C
       Shop #: WSC 00046 000 81920
       VCID: 2B000F86EF006BDFA8B-807E
    
       Subsystem 1 - Part No: 1K2 955 119 E  Labels: 1KX-955-119.CLB
       Component: Wischer 070706 020  0501  
       Coding: 00038805
       Shop #: WSC 00046  
    
       Subsystem 2 - Part No: 1K0 955 559 AE  Labels: 1K0-955-559-AF.CLB
       Component: RLS     110706 014  1201  
       Coding: 00208933
       Shop #: WSC 00046  
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 1K0-909-605.lbl
       Part No SW: 1K0 909 605 T    HW: 1K0 909 605 T
       Component: 38 AIRBAG VW8   020 2300  
       Revision: 05020000    Serial number: 0038PD0LR8X9  
       Coding: 0013112
       Shop #: WSC 00046 412 16384
       VCID: 3D2431DE0174F56F06F-8068
    
       Subsystem 1 - Serial number: 6332MSME112D0F216
    
       Subsystem 2 - Serial number: 6342MSME0F0D0245B
    
       Subsystem 3 - Serial number: 6352QSME12502251 
    
       Subsystem 4 - Serial number: 6362QSME10241E358
    
    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 035 0070  
       Coding: 0000012
       Shop #: WSC 00046 412 819200
       VCID: 74B2D4FA72BE7427391-8020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 1K0-920-xxx-17.lbl
       Part No SW: 1K0 920 963 B    HW: 1K0 920 963 B
       Component: KOMBIINSTRUMENT VDD 1610  
       Revision: V0003000    Serial number: VWZ7Z0F7057135
       Coding: 0003403
       Shop #: WSC 00011 888 96745
       VCID: 2B000F86EF006BDFA8B-807E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 1K0-907-530-V2.clb
       Part No SW: 1K0 907 530 H    HW: 1K0 907 951 
       Component: J533__Gateway   H12 0150  
       Revision:   H12       Serial number: 31001067088A6B
       Coding: 3D3F0B4007000003
       Shop #: WSC 00046 412 1966080
       VCID: 2C020C9AEA0E6CE7A11-8078
    
    2 Faults Found:
    01305 - Databus for Infotainment 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 1
                        Fault Frequency: 1
                        Reset counter: 25
                        Mileage: 190243 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:22:04
    
    01304 - Radio 
                004 - No Signal/Communication - Intermittent
                 Freeze Frame:
                        Fault Status: 00100100
                        Fault Priority: 2
                        Fault Frequency: 7
                        Reset counter: 68
                        Mileage: 190243 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:39:58
    
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer        Labels: 1K0-920-xxx-25.clb
       Part No SW: 1K0 920 963 B    HW: 1K0 920 963 B
       Component: IMMO            VDD 1610  
       Revision: V0003000    Serial number: VWZ7Z0F7057135
       Shop #: WSC 00000 000 00000
       VCID: 2B000F86EF006BDFA8B-807E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels: 1K0-959-701-MIN3.clb
       Part No SW: 1K0 959 701 M    HW: 1K0 959 701 M
       Component: Tuer-SG         005 0964  
       Coding: 0000692
       Shop #: WSC 00046 412 1966080
       VCID: 382A20CA2E56D047D59-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1Kx-909-144-G2V3.clb
       Part No: 1K2 909 144 L
       Component: EPS_ZFLS Kl.069 H07 1806  
       Shop #: WSC 02069 000 90108
       VCID: 353429FE39442D2FCEF-8060
    
    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 0202  
       Revision: 00020000    Serial number: 00000000000000
       Coding: 199002005103087F2D04840570085FC690FCA0
       Shop #: WSC 00046 412 212992
       VCID: 035087262710439F30B-8056
    
       Subsystem 1 - Component:   Sounder No Answer     
    
       Subsystem 2 - Component:       NGS No Answer     
    
       Subsystem 3 - Component:      IRUE No Answer     
    
    3 Faults Found:
    01135 - Interior Monitoring Sensors 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 25
                        Mileage: 190243 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:38:51
    
    00323 - Vehicle Inclination Sensor (G384) 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 25
                        Mileage: 190243 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:38:51
    
    01134 - Alarm Horn (H12) 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 25
                        Mileage: 190243 km
                        Time Indication: 0
                        Date: 2000.00.00
                        Time: 14:38:51
    
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass.        Labels: 1K0-959-702-MIN3.clb
       Part No SW: 1K0 959 702 M    HW: 1K0 959 702 M
       Component: Tuer-SG         005 0964  
       Coding: 0000692
       Shop #: WSC 00046 412 1966080
       VCID: 392C25CE155CC94F2A7-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio
    Cannot be reached
    
    -------------------------------------------------------------------------------
    Address 62: Door, Rear Left        Labels: 1K0-959-703-GEN3.clb
       Part No SW: 1K0 959 703 K    HW: 1K0 959 703 K
       Component: Tuer-SG         005 0912  
       Coding: 0000144
       Shop #: WSC 00046 412 1012544
       VCID: 382A20CA2E56D047D59-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 72: Door, Rear Right        Labels: 1K0-959-704-GEN3.clb
       Part No SW: 1K0 959 704 K    HW: 1K0 959 704 K
       Component: Tuer-SG         005 0912  
       Coding: 0000144
       Shop #: WSC 00046 412 1012544
       VCID: 392C25CE155CC94F2A7-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 7D: Aux. Heat        Labels: 1K0-963-235.lbl
       Part No SW: 1K0 963 235 E    HW: 1K0 963 235 E
       Component: PTC-Element         0404  
       Revision: 00800000    Serial number:               
       Shop #: WSC 00000 000 00000
       VCID: 2D04019ED11465EFB6F-8078
    
    1 Fault Found:
    00361 - Heater Element for Auxiliary Heater (Z35) 
                014 - Defective
    
    End----------(Elapsed Time: 01:09, VBatt start/end: 12.3V/12.3V)-----------

  2. #2
    Benevolent Dictator Uwe's Avatar
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    005697 - Please check DTC Memory of A/C Controller

    That just means that the ECU is aware of a fault in the HVAC module. However, it's flagged "Intermittent", meaning the fault condition that set this code did not exist (or could not be detected) at the time the scan was performed. I'd speculate that the fault(s) in the HVAC module have been cleared, but not the the ECU...

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  3. #3
    Verified VCDS User dayrider's Avatar
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    Quote Originally Posted by Uwe View Post
    005697 - Please check DTC Memory of A/C Controller

    That just means that the ECU is aware of a fault in the HVAC module. However, it's flagged "Intermittent", meaning the fault condition that set this code did not exist (or could not be detected) at the time the scan was performed. I'd speculate that the fault(s) in the HVAC module have been cleared, but not the the ECU...

    -Uwe-
    thanks for your response Uwe

    how would i clear it in the ecu so it don't show up again?

    also would that be the same for all the other intermittent faults like -
    005746 - Coolant Fan Control 1
    P1672 - 000 - Open or Short to Ground - Intermittent

  4. #4
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    If compressor is taking current but not operating it suggest it is faulty or stuck. remove drive belt and see if you can physical turn the compressor inner and outer by hand

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  6. #5
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by dayrider View Post
    how would i clear it in the ecu so it don't show up again?
    [Select]
    [01-Engine]
    [Fault Codes]
    [Clear Codes]

    Note that you cannot prevent a fault code from being set again if the fault condition re-occurs.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

  7. #6
    Verified VCDS User dayrider's Avatar
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    does this look like everything is working?

    First pic off.



    Last edited by dayrider; 07-27-2017 at 04:06 AM.

  8. #7
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    According to your second picture the compressor should be pulling 0.8amp but the actual reading is blank. give the compressor clutch a good live and earth, see if it then pulls the clutch in and works . Obviously stay well clear of any moving parts.

  9. #8
    NostraJackAss Jack@European_Parts's Avatar
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    The compressors are known for shear pin breakage in addition if you find that the clutch engages after jump out advised by paull.
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  10. #9
    Verified VCDS User dayrider's Avatar
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    Quote Originally Posted by paull View Post
    According to your second picture the compressor should be pulling 0.8amp but the actual reading is blank. give the compressor clutch a good live and earth, see if it then pulls the clutch in and works . Obviously stay well clear of any moving parts.
    Quote Originally Posted by Jack@European_Parts View Post
    The compressors are known for shear pin breakage in addition if you find that the clutch engages after jump out advised by paull.


    Mine doesn't have a clutch, it's always engaged on the mk5s.

  11. #10
    Verified VCDS User Danners74's Avatar
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    Quote Originally Posted by Jack@European_Parts View Post
    The compressors are known for shear pin breakage in addition if you find that the clutch engages after jump out advised by paull.

    Guys there are no clutches to speak of on these any more. That's what the N280 is for on the compressor. That's PWM'd and have swash plates inside on some. Do check the spindle as stated as they do fall apart internally and the two separate on the front of the pulley. Done loads in dealer and out of.

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