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Thread: Passat B8 2014 Auto HVAC ERRORS

  1. #1
    Verified VCDS User @DRI@N's Avatar
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    Passat B8 2014 Auto HVAC ERRORS

    Hello,

    I have this errors on CLIMATRONIC but I don't find anything on ross-tech fault codes list !!!
    Is possible to explain me what SERVOMOTOR is broken because on the RIGHT SIDE I have no heat .
    In fact I do not have heat on the ventilation grille from the door, but instead gives little heat on the middle one on the right side of the clock on board !!!
    I understood from the ETKA program that Passat B8 have following SERVOMOTORS :
    Pos. No.17 in ETKA
    5Q0898141B or C = Adjuster unit
    Pos. No.18 in ETKA
    5Q0907511A = Servomotor
    Pos. No.21 in ETKA
    3Q0898141 = Adjuster unit
    Pos. No.23 in ETKA
    5Q0898511 = Control motor for temperature regulating flap
    Pos. No.24 in ETKA
    5Q0907511A = Servomotor
    Pos. No.25 in ETKA
    5Q0898511A = Control motor for temperature regulating flap
    Pos. No.26 in ETKA
    5Q0907511A = Servomotor
    Pos. No.30 in ETKA
    3Q0898141A = Adjuster unit
    Pos. No.32 in ETKA
    3Q189814 and 3Q2898141 = Adjuster unit
    Pos. No.46 in ETKA
    5Q0907511A = Servomotor
    As you can see the code 5Q0907511A is identical to positions 18/24/26/46.
    Now, which of these codes are on the left and which on the right I can only guess after the ETKA call.
    But I don't know which piece is the defective one !!!

    Code:
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels:| 5G0-907-044.clb
       Part No SW: 5G1 907 044 B    HW: 5G1 907 044 B
       Component: Climatronic   H03 1001  
       Revision: 00001K10    
       Coding: 11020114202100012115504E00101102
       Shop #: WSC 00015 115 08193
       ASAM Dataset: EV_ACClimaBHBVW37X 003018
       ROD: EV_ACClimaBHBVW37X_003_VW48.rod
       VCID: 2708F3519F625D7FAB3-8072
    
       Fresh Air Blower Front: 
    
       Geber für Kältemitteldruck/Kältemitteltemperatur: 
    
       Air quality sensor: 
    
       Relative humidity sensor in fresh air intake duct: 
    
    2 Faults Found:
    328198 - Position Sensor for Right Temperature Flap Motor 
              B1095 11 [008] - Short to Ground
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 106
                        Mileage: 62384 km
                        Date: 2019.03.19
                        Time: 11:20:22
    
                        Voltage terminal 30: 14.4 V
                        Outside air temperature: 18.0 °C
                        Interior temperature: 26.7 °C
                        Right temperature flap: actual value: 0.0 %
                        Right temperature flap: actual value: 109
                        Right temperature flap: specified value: 109
    
    328199 - Position Sensor for Right Temperature Flap Motor 
              B1095 15 [008] - Open or Short to Plus
              Intermittent - Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 106
                        Mileage: 62378 km
                        Date: 2019.03.19
                        Time: 10:33:35
    
                        Voltage terminal 30: 14.6 V
                        Outside air temperature: 13.5 °C
                        Interior temperature: 21.2 °C
                        Right temperature flap: actual value: 0.0 %
                        Right temperature flap: actual value: 221
                        Right temperature flap: specified value: 221
    -------------------------------------------------------------------------------
    I be very grateful if, somebody tell me to which of them the three SERVOMOTORS refers to these two errors !!!
    Thanks .
    Last edited by Uwe; 10-25-2019 at 11:09 AM. Reason: CODE tags

  2. #2
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    Have you tried clearing the errors and then run the adapt flap ends basic setting in HVAC module?

    That sometimes helps with sticking motors

  3. #3
    Ross-Tech Employee
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    Did you notice that the fault frequency = 1? That means the control module saw these faults one time both on the same day - mind they were not seen at the same time. If the time and date is to be accepted, I don't think there is a problem here. As downtime suggested, I would clear the faults and see if they return. If they do, then you may have a problem with the sensor that needs attention.

    You should avail yourself of the information found on erWin.VW. There you will find the location of the parts identified in the autoscan. It is a minimal cost to view. The pages at erWin are in pdf format so you can download them to your computer building your own copy of the dealer information for your car.

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  5. #4
    Verified VCDS User @DRI@N's Avatar
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    Yes I clear the errors, I made the FLAP END adaptation basic settings, but the errors reappear !!!
    My problem is I don't know what SERVOMOTOR to buy to replace it !!!

    @Bruce.
    I don't have account on erWin !!!
    Which sensor are you referring to ???
    Last edited by @DRI@N; 10-25-2019 at 07:33 AM.

  6. #5
    Verified VCDS User PetrolDave's Avatar
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    Quote Originally Posted by @DRI@N View Post
    I don't have account on erWin !!!
    Anybody can create an account on erWin - create an account (which costs nothing), then buy the shortest period of access you can, enter your VIN and download EVERYTHING relating to your car.

    That will give you wiring diagrams, component lists, etc. which will answer your questions about part details.

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  8. #6
    Verified VCDS User @DRI@N's Avatar
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    Problem Solved ,

    It was needed to change the RIGHT SIDE, cold / heat SERVOMOTOR !!!
    The old servomotor have usure on the case in the contact area of the gear that operated the flap, and due to that, the operating gear not stay fixed on servomotor !!
    The servomotor is situated under the ventilation unit in the right side of her !!!
    Theoretically to change his is possible without removing the glove compartment but is better to be remove him to have more light and space !!!

    Have a nice Week .
    Best regards !!

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