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Thread: BCM Part number query

  1. #1
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    BCM Part number query

    I have a VW T5 1.9 2008. I have identified an issue with my BCM with regards to the intermittent wipers. It is a well documented issue. My reason for posting is regards to part numbers. The part number for the BCM in my van is 7H0 937 049 AB. I want to know how critical the letters 'AB' are? I can find a variation of letters for my years van, but not the specific AB. An example is I found a 7H0 937 049 AD. Could I not get one of these and use the current coding for AB. My van has no electric windows or fancy stuff like that.
    Thanks

    Code:
    Tuesday,12,March,2019,17:45:27:15067
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
    VCDS Version: 18.9.1.0 (x64)  HEX-V2 CB: 0.4437.4
    Data version: 20190114 DS296.0
    www.Ross-Tech.com
    
    
    VIN: WV1ZZZ7HZ8H149753   License Plate: T5 CTG
    Mileage: 237330km-147470mi   Repair Order: 
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 7H (7H - VW Transporter/Multivan (2003 > 2010))
    Scan: 01 02 03 08 09 0B 0D 15 16 17 18 19 1C 22 2D 37 45 46 47 56
              57 6E 76 77 78 7D
     
    VIN: WV1ZZZ7HZ8H149753   Mileage: 237330km-147470miles
    -------------------------------------------------------------------------------
    Address 01: Engine        Labels: Redir Fail!
       Part No SW: 038 906 016 AH    HW: 038 906 016 AH
       Component: R4 1,9L EDC  000SG  9960  
       Revision: --H06---    Serial number: VWZ7Z0H6434921
       Coding: 0000031
       Shop #: WSC 02736 790 00000
       VCID: 5AED90CC900CD467B09-5184
    
    No fault code found.
    Readiness: 0 0 0 0 0 
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes        Labels: 7H0-907-37x-ABS.clb
       Part No SW: 7H0 907 379 S    HW: 7H0 907 379 S
       Component: (M)ABS MK25E        0103  
       Revision: 00H21001    
       Coding: 0000552
       Shop #: WSC 02736 790 00000
       VCID: 45D753B009B24B9FEDB-5160
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect.        Labels:. 7H0-937-049.lbl
       Part No: 7H0 937 049 AB
       Component: BORDNETZ SGVER 1.0  1201  
       Coding: 0000006
       Shop #: WSC 02736 790 00000
       VCID: 72BDD86C68BC8C27989-5160
    
    1 Fault Found:
    00077 - Windshield Wiper Stop Switch (F229) 
                004 - No Signal/Communication
    
    -------------------------------------------------------------------------------
    Address 15: Airbags        Labels: 6Q0-909-605-VW5.lbl
       Part No: 1C0 909 605 A
       Component: 3C AIRBAG VW51      0011  
       Coding: 13123
       Shop #: WSC 02736  
       VCID: 221DE82CFDDC5CA7A89-5160
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments        Labels: 7Hx-920-xxx-17.lbl
       Part No: 7H0 920 952 B
       Component: KOMBI+WEGFAHRSP VDO V03  
       Coding: 00413
       Shop #: WSC 00001  
       VCID: 2C0106148F189AD7125-5160
       WV1ZZZ7HZ8H149753     VWZ7Z0H6434921
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway        Labels: 6N0-909-901-19.lbl
       Part No: 6N0 909 901 
       Component: Gateway K<->CAN    0001  
       Coding: 00006
       Shop #: WSC 02736  
       VCID: 70B9D26463B0BE376ED-5160
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv.        Labels: 7H0-959-433.lbl
       Part No: 7H0 959 433 B
       Component: C11 KomfortgerŠt     0004  
       Coding: 00021
       Shop #: WSC 02736  
       VCID: 323D186CAD3CCC27589-4B3C
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 56: Radio        Labels: 1K0-035-1xx-56.lbl
       Part No SW: 7H0 035 152 H    HW: 7H0 035 152 H
       Component: Radio 9NK           0008  
       Revision: 00005000    Serial number: VWZ4Z4H1130278
       Coding: 0010200
       Shop #: WSC 02736 790 00000
       VCID: 270BF93893FEB98FFF7-5160
    
    No fault code found.
    
    End----------(Elapsed Time: 06:08, VBatt start/end: 12.6V/12.6V)-----------

  2. #2
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Triton View Post
    I want to know how critical the letters 'AB' are?
    I would suggest that they are very critical.

    That doesn't mean there aren't other suffixes that will work, but I doubt you will have good results with some random 7H0 937 049 xx module.

    Someone with parts catalog access should be able to give you a list of modules that supersede the -AB one.

    -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
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    7H0937049AB superseded by 7H0937049AE

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  5. #4
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    A number of AEís available. They are all saying for cruise.
    How do they assign the letters as would have thought AD followed AB rather than AE. So many versions 😳

  6. #5
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Triton View Post
    How do they assign the letters as would have thought AD followed AB rather than AE. So many versions ��
    If you figure out a definitive pattern to how the suffices are assigned, let us know!

    My guess is it's done chronologically, so that AC would be assigned right after AB, but AC may not have the same functionality. Then AD with different functionality again, and then the realized the need to fix or improve something with AB and the next available suffice is AE. But this is just a guess.

    -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.

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