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Thread: Where are the air quality sensors?

  1. #1
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    Where are the air quality sensors?

    I have issues with the interior air temperature. I have to have the temp on max to get any heat (which becomes too hot) or it is cold on any other setting.
    I have done a scan but got no idea where the sensors are in order to replace them.
    Can anyone tell me where they are based on this scan if possible. Thanks.

    Code:
     Sunday,16,February,2020,18:45:38:40439
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 19.6.2.2 (x64)
    Data version: 20200210 DS308.0
    www.Ross-Tech.com
    
    
    VIN: WVWZZZ13ZAV437053   License Plate: MA10RZN
    Mileage: 267580km-166266mi   Repair Order: 16/02/20
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 13-VW36 (1K0)
    Scan: 01 03 08 09 10 14 15 16 17 19 25 2E 37 42 44 46 4F 52 55 56
              77
    
    VIN: WVWZZZ13ZAV437053   Mileage: 267580km-166266miles
    
    01-Engine -- Status: OK 0000
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: Malfunction 0010
    10-Park/Steer Assist -- Status: OK 0000
    14-Susp. Elect. -- 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
    25-Immobilizer -- Status: OK 0000
    2E-Media Player 3 -- Status: OK 0000
    37-Navigation -- Status: OK 0000
    42-Door Elect, Driver -- Status: OK 0000
    44-Steering Assist -- Status: OK 0000
    46-Central Conv. -- Status: OK 0000
    4F-Centr. Electr. II -- Status: OK 0000
    52-Door Elect, Pass. -- Status: OK 0000
    55-Headlight Range -- Status: OK 0000
    56-Radio -- Status: OK 0000
    77-Telephone -- Status: Malfunction 0010
     
    -------------------------------------------------------------------------------
    Address 01: Engine (CBD)       Labels: 03L-906-022-CBA.clb
       Part No SW: 03L 906 022 KD    HW: 03L 906 022 G
       Component: R4 2,0L EDC 0000SG  6166  
       Revision: 13H03---    Serial number:               
       Coding: 0001072
       Shop #: WSC 00020 790 00000
       VCID: 71E9A7EF6834EDC75A-8024
    
    No fault code found.
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 1K0-907-379-60EC1F.clb
       Part No SW: 1K0 907 379 AH    HW: 1K0 907 379 AH
       Component: ESP MK60EC1   H30 0107  
       Revision: 00H30001    
       Coding: 763B40F5492500016E0B02E9921C0082300000
       Shop #: WSC 00020 790 00000
       VCID: 78FF9ACBCB4EBC8F9D-802C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels:| 5K0-907-044.clb
       Part No SW: 5K0 907 044 BT    HW: 5K0 907 044 BT
       Component: Climatronic   H15 0709  
       Revision: 00003001    
       Coding: 0000000002
       Shop #: WSC 00020 999 00000
       ASAM Dataset: EV_Climatronic A01006
       ROD: EV_ClimaAutoBasis_VW36.rod
       VCID: 7EF38CD3E16A82BFD7-802A
    
    2 Faults Found:
    9479185 - Signal Line for Air Quality Sensor 
              B10A4 11 [008] - Short to Ground
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 3
                        Fault Frequency: 7
                        Reset counter: 98
                        Mileage: 267368 km
                        Date: 2020.02.13
                        Time: 15:54:47
    
    9479189 - Signal Line for Air Quality Sensor 
              B10A4 15 [008] - Open or Short to Plus
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 3
                        Fault Frequency: 15
                        Reset counter: 99
                        Mileage: 267342 km
                        Date: 2020.02.13
                        Time: 15:25:47
    
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 1K0-937-08x-09.clb
       Part No SW: 5K0 937 087 D    HW: 5K0 937 087 D
       Component: BCM PQ35 H    011 0028  
       Revision: BE011001    
       Coding: 4C100A3B9025E10040080080740049E643550B88736D8560648000000000
       Shop #: WSC 00020 790 00000
       VCID: 366354F381DA8AFF4F-8062
    
       Subsystem 1 - Part No: 1K8 955 119 E  Labels: 1KX-955-119.CLB
       Component: Wischer 11011  22  0614 
       Coding: 009795
    
       Subsystem 2 - Part No: 1K0 955 559 AH  Labels: 1K0-955-559-AG.CLB
       Component: RLS 160210 05  54  0403 
       Coding: 0330ED
    
       Subsystem 3 - Part No: 1K8 951 171 
       Component: DWA-Sensor 00  001 0104 
       Coding: 000000
    
       Subsystem 4 - Part No: 1K8 951 605 
       Component: LIN BACKUP HO  H09 9002 
       Coding: 000000
    
    2 Faults Found:
    00924 - Relay for Headlamp Cleaning System (J39) 
                009 - Open or Short to Ground
                 Freeze Frame:
                        Fault Status: 01101001
                        Fault Priority: 4
                        Fault Frequency: 103
                        Reset counter: 54
                        Mileage: 255812 km
                        Time Indication: 0
                        Date: 2014.02.14
                        Time: 17:56:60
    
                 Freeze Frame:
                            Term 15 On
                        Voltage: 13.90 V
                            ON
                            ON
                            OFF
                            OFF
                            OFF
    
    01134 - Alarm Horn (H12) 
                000 - - - Intermittent
                 Freeze Frame:
                        Fault Status: 00100000
                        Fault Priority: 4
                        Fault Frequency: 30
                        Reset counter: 96
                        Mileage: 258624 km
                        Time Indication: 0
                        Date: 2014.03.20
                        Time: 13:59:01
    
                 Freeze Frame:
                            Term 15 Off
                        Voltage: 12.05 V
                            OFF
                            ON
                            OFF
                            OFF
                            OFF
    
    
    -------------------------------------------------------------------------------
    Address 10: Park/Steer Assist (J446)       Labels:. 1K0-919-475.clb
       Part No SW: 1K0 919 475 K    HW: 1K0 919 475 K
       Component: PARKHILFE     005 1706  
       Revision: 00005000    Serial number: 0 263 004 388 
       Coding: 100001
       Shop #: WSC 00020 790 00000
       VCID: 3A7B40C3B5C26E9FAB-806E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 14: Susp. Elect. (J250)       Labels:. 3C0-907-376.clb
       Part No SW: 3C0 907 376 A    HW: 3C0 907 376 
       Component: DAEMPFUNGS-SG H07 0070  
       Revision: 00000000    Serial number: 08021003800002
       Coding: 000180
       Shop #: WSC 00020 790 00000
       VCID: 275D89B75670E377C4-8072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 1K0-909-605.lbl
       Part No SW: 1K0 909 605 AE    HW: 1K0 909 605 AE
       Component: 0H AIRBAG VW8   020 2300  
       Revision: 05020000    Serial number: 003D1D0249DF  
       Coding: 0012360
       Shop #: WSC 00020 790 00000
       VCID: 6FEDA1977E00FB374C-803A
    
       Subsystem 1 - Serial number: 6332MSME4F04295CM
    
       Subsystem 2 - Serial number: 6342MSME4E722F78V
    
       Subsystem 3 - Serial number: 6352QSME3D4C0002B
    
       Subsystem 4 - Serial number: 6362QSME4E4E4508V
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 16: Steering wheel (J527)       Labels:| 5K0-953-569.clb
       Part No SW: 5K0 953 521 T    HW: 5K0 953 569 D
       Component: LENKS.MODUL   009 0122  
       Revision: FF010035    Serial number: 20100213200752
       Coding: 108A040000
       Shop #: WSC 00020 999 00000
       ASAM Dataset: EV_SMLSNGVOLWS A01002
       ROD: EV_SMLSNGVOLWS.rod
       VCID: 3D714BDFACEC59A78E-8068
    
       Multifunction steering wheel control module: 
       Subsystem 1 - Part No SW: 5K0 959 542     HW: 5K0 959 542   Labels: 3C8-959-537.CLB
       Component: E221__MFL-TAS  H05 0010 
       Coding: 820000
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:| 5K0-920-xxx-17.clb-SRI1
       Part No SW: 1K8 920 971 C    HW: 1K8 920 971 C
       Component: KOMBI         H05 0305  
       Serial number: 00000000000000
       Coding: 470F00
       Shop #: WSC 00020 999 00000
       ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04052
       ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod
       VCID: 33656DE79AA89FD768-8066
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels:. 1K0-907-530-V4.clb
       Part No SW: 1K0 907 530 AE    HW: 1K0 907 951 
       Component: J533  Gateway   H06 0112  
       Revision:   H06 01    Serial number: 270110F2001357
       Coding: E9A91F06400613004001
       Shop #: WSC 00400 210 83203
       VCID: 6ADBB08345E21E1F1B-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 25: Immobilizer (J334)       Labels:| 5K0-920-xxx-25.clb
       Part No SW: 5K0 953 234     HW: 5K0 953 234 
       Component: IMMO          H05 0305  
       Serial number:               
       Coding: 000000
       Shop #: WSC 00000 000 00000
       ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03005
       ROD: EV_Immo_UDS_VDD_RM09.rod
       VCID: 6ADBB0838DE21E1F1B-803E
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 2E: Media Player 3 (J650)       Labels:. 5N0-035-342.lbl
       Part No SW: 5N0 035 342 B    HW: 5N0 035 342 B
       Component: SG EXT.PLAYER H13 0090  
       Revision: A1001003    Serial number: 7667802176    
       Coding: 010000
       Shop #: WSC 00000 000 00000
       VCID: 264384B3517AFA7FFF-8072
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 37: Navigation (J0506)       Labels:. 1T0-035-680.clb
       Part No SW: 1T0 035 680 P    HW: 1T0 035 680 F
       Component: RNS-MID       H60 5238  
       Revision: AB001001    Serial number: VWZ6Z7L4234015
       Coding: 04000402040000A0000F
       Shop #: WSC 05314 123 12345
       VCID: 3B7545C7BAF85797B0-806E
    
       Subsystem 1 - Part No: 1T0 919 859 B
       Component: EU West V13  8348 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver        Labels:. 1K0-959-701-MAX3.clb
       Part No SW: 1Q0 959 701 H    HW: 1Q0 959 701 H
       Component: Tuer-SG         009 2124  
       Coding: 0016949
       Shop #: WSC 00020 790 00000
       VCID: 39795FCF70C46587A2-806C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 44: Steering Assist        Labels: 1K0-909-14x-GEN3.clb
       Part No: 1K0 909 144 J
       Component: EPS_ZFLS Kl. 177    3001  
       Revision: 00H17000    
       Shop #: WSC 00020 790 00000
       VCID: 316967EFA8B4ADC71A-8064
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 4F: Centr. Electr. II (J520)       Labels:. 1K0-907-532.clb
       Part No SW: 1K0 907 532     HW: 1K0 907 951 
       Component: EZE_2         H06 0112  
       Revision:   H06 01    Serial number: 270110F2001357
       Coding: 01030100
       Shop #: WSC 00400 210 83203
       VCID: 66C3C4B391FA3A7F3F-8032
    
       Subsystem 1 - Part No SW: 6R0 959 591     HW: 6R0 959 591 
       Component: J245/J878  H04 0054 
       Serial number: 003400000817        
       Coding: 000005
    
    No fault code found.

  2. #2
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    Hi, the air quality sensor is located close to the wiper motor. In my view, it has nothing to do with your problem. I think that either a sensor for outflow temperature or the sensor for sun position is the cause. Have you made a basic setting for the flaps? What is the temperature difference between the heating hose and the return hose?

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  4. #3
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    Thanks. I have no idea. Only things I have done is reset the flaps to see if that helped and an aircon service. None of which helped.
    The temp differance is worse when the aircon is on.
    It is steadily getting worse with aircon off.
    Are there temp sensors in any of the ducts and if so, where.
    Thanks

  5. #4
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    There's only one air quality sensor and on a LHD car it's under the passenger side wiper in the "rain tray" or whatever it's called

    It could be the sensor or it could be wiring to the sensor.

  6. #5
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    ^^^^ like this (pics from my-gti.com):


    Although (like ai_Ingo) I wouldn't have thought that a faulty air quality sensor would produce the symptoms described. Still, the sensor is relatively easy to replace-so it does eliminate a possible cause(I guess)

    Don

    PS: the written stuff from the manufacturer has lots of warning labels about the need to keep the new sensor clear from any contaminants during the replacement process. Apparently these sensors are prone to failure if exposed to pollutants (so don't chuck the new sensor into a grubby, oily tool box while you access the plenum chamber)
    Last edited by DV52; 02-17-2020 at 03:43 PM.
    VW Golf MkVII (MY13) - A3 8V hatch (MY17)

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  8. #6
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    Thanks guys. I will get that one replaced this week.
    Do you know if there are any sensors inside the air ducts on the dash? The two by each door and the two above the radio (or anywhere else where there is a duct)
    I hope I don't have to remove the dash but if needs be then it will have to be done.

    Thanks again.

  9. #7
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    I agree with ai_Ingo and Don that the faulty air quality sensor does not affect the amount of hot or cold air blown inside, sorry I somehow did not register the actual problem, I was just staring at the fault codes
    The air quality sensors only affects the automatic recirculation. So changing the sensor does not fix the poor heat output problem. To me this sounds like a faulty or blocked heater matrix : https://forums.vwvortex.com/showthre...ter-core-flush

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  11. #8
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    Open module 08, have a look at measurement blocks for left and right side temperature flaps V158 and V159. Change the temperature through its range and see how the measurement blocks change - if it's smooth and linear or jumpy and erratic?

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  13. #9
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    Quote Originally Posted by siLc View Post
    Open module 08, have a look at measurement blocks for left and right side temperature flaps V158 and V159. Change the temperature through its range and see how the measurement blocks change - if it's smooth and linear or jumpy and erratic?
    Thank you. Not checked yet but will do this weekend

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