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Thread: Audi TT MK1 Climate Control strange behavior, or should it be so, maybe?

  1. #1
    Verified VCDS User
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    Sep 2016
    Riga, Latvia
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    Audi TT MK1 Climate Control strange behavior, or should it be so, maybe?

    Car is TT MK1, MY 2000.
    Problem is that air from center vents of dash comes much warmer than from side vents (both).
    Does not matter, what mode is used - auto, econ, recirculation, what flow direction is set etc.
    At the moment of measurements outside T is approx +3 degrees C, in workshop, where car is located is approx +10 degrees, climate control is set to 22 degrees, engine is at working T, average T in passenger compartment is maintained +/- ok as set value, only from side vents comes approx +20, but from center vents approx +30. If set value is increased, difference increases, too.
    No fault codes. Recirculation flap motor was faulty, but I replaced it before. All flaps are where commanded, according position sensor data. According RTFB there are no any separate air distribution or temperature regulation between center and side outlets.
    Any comments from TT MK1 owners or repairers are welcome.
    Autoscan and MVB map below.
    P.S. Permanent airbag disable switch fault is stored because glove box is still removed for recirculation motor replacement.
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows XP x86
    VCDS Version:
    Data version: 20190529 DS308.0
    Workshop Code: 123 12345 012345
    Chassis Type: 8N - Audi TT (1999 > 2007)
    Scan: 01 02 03 08 15 17 22 35 37 45 55 56 76 77
       Mileage: 237050km-147296miles
    Address 01: Engine        Labels: 06A-906-032-AJQ.clb
       Part No: 8N0 906 018 A
       Component: 1.8L R4 5VT         0010  
       Coding: 05500
       Shop #: WSC 01236  
       VCID: 2F6D7983ED63F63730-5140
    No fault code found.
    Readiness: 0000 0000
    Address 03: ABS Brakes        Labels: 8N0-907-379-MK20.lbl
       Part No: 8N0 907 379 
       Component: ASR     20 IE CAN  0001  
       Coding: 13204
       Shop #: WSC 01236  
       VCID: 79F987DB63A7E887DE-4B00
    No fault code found.
    Address 08: Auto HVAC        Labels: 8N0-820-043.lbl
       Part No: 8N0 820 043 
       Component: TT-KLIMAVOLLAUTOMAT D02  
       Coding: 00040
       Shop #: WSC 01236  
       VCID: 67DDD1A305136E7738-2580
    No fault code found.
    Address 15: Airbags        Labels: 8N8-909-601.lbl
       Part No: 8N8 909 601 
       Component: Airbag Front+Seite 0005  
       Coding: 10102
       Shop #: WSC 01236  
       VCID: 77FD81E355B3FEF7A8-5140
    1 Fault Found:
    01228 - Airbag Cut-Off Switch for Passenger Side (E224) 
                30-00 - Open or Short to Plus
    Address 17: Instruments        Labels: 8Nx-919-xxx-17.lbl
       Part No: 8N1 919 860 C
       Component: KOMBI+WEGFAHRS. M73 D30  
       Coding: 00144
       Shop #: WSC 00558  
       VCID: 3B755DD3291B1A978C-4B00
       Subsystem 1 - Part No: Ident
       Component: Nr. Wegfahrs.:AUZ5Z0E9075010  
       Ident.-Nr. Wegfahrs.:AUZ5Z0E9075010
    No fault code found.
    Address 35: Centr. Locks        Labels:. 8Nx-962-267.lbl
       Part No: 8N8 962 267 
       Component: Zentralverrieg.,DWA D04  
       Coding: 04682
       Shop #: WSC 00000  
       VCID: 7EF394C77A89CFBFEB-4EEA
    No fault code found.
    Address 45: Inter. Monitor        Labels: 8E0-951-177.lbl
       Part No: 8N8 951 177 
       Component: Innenraumueberw.    D09  
       Coding: 00001
       Shop #: WSC 00000  
       VCID: 7CF79ECF6C95DDAFC5-51B6
    No fault code found.
    Address 56: Radio        Labels: 8D0-035-1xx-56.lbl
       Part No: 4B0 035 186 B
       Component:  Radio              D04  
       Coding: 00201
       Shop #: WSC 01236  
       VCID: 1F4D89439DC366B780-4B1A
    No fault code found.
    End-------------------------(Elapsed Time: 03:42)--------------------------
    ;SW:8N0-820-043   HW: ---  Auto HVAC
    ;Component:TT-KLIMAVOLLAUTOMAT D02, Coding:00040
    ;VCDS Version: Release 19.6.1  Data version: 20190529 DS308.0
    ;VCID: 67DDD1A305136E7738-2580
    Group,Field 1,Data type,Field 2,Data type,Field 3,Data type,Field 4,Data type,
    1,0.0,(no units),0.0,(no units),13.90 V,Voltage,240.0,(no units),
    2,81.0,(no units),82.0,(no units),215.0,(no units),38.0,(no units),
    3,221.0,(no units),226.0,(no units),222.0,(no units),40.0,(no units),
    4,113.0,(no units),114.0,(no units),212.0,(no units),40.0,(no units),
    5,24.0,(no units),19.0,(no units),227.0,(no units),23.0,(no units),
    6,9.0C,Temperature,20.0C,Temperature,12.0C,Temperature,0.0 %,Load,
    7,0.0,(no units),35.0C,Temperature,20.0C,Temperature,85.0C,Temperature,
    8,6.70 V,Voltage,6.70 V,Voltage,18.8 %,Load,4.0 %,Load,
    9,760 /min,RPM,0.0 km/h,Speed,0.0,(no units),N/A,,
    10,0.0,(no units),1.0,(no units),0.0,(no units),0.0,(no units),

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  3. #2
    NostraJackAss Jack@European_Parts's Avatar
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    1001 State Route 17K Montgomery New York 12549
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    Blend door Flap in box broken or with foam delaminated allowing a mix in any position.
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    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP! <<<<<CLICK HERE! or ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
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