Q7 supplemental heater MMI menu help

   #1  

fukinavit

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Hi,

I have sourced and installed a supplemental (webasto ) heater to our 2011 Q7 TDI. I followed the install as per instructions on a great post in audiworld and this gave me the confidence to do it.. All has gone well with the exception of being able to access Controlling the unit via the MMI menu.
I completed the coding changes as per this link:


However i only have 3 options under the AC menu. They are:
Auto recirculation ON/OFF
Synchronization ON/OFF
Suppl heater AUTO/OFF

I can communicate with the webasto under 18 Aux heater and can perform output tests. The only code present is component protection which i plan to get removed by the dealer once i complete the install and can access the control menu.
However i have no options under the basic settings tab which i believe there should be in terms of line fill etc??
(i cannot physically run the unit yet as i am waiting on a fuel fitting to connect it to the fuel tank but everything else is wired and connected)

On another post to enable the menu i read to add 2048 to my coding in 08 HVAC. My current coding is 0018A036, when i enter 0018A2084 it gets rejected. Should i enter it as 2066A036?? instead.
Im not confident in the coding side and do not want to cause issues entering codes i dont understand so i thought to ask for assistance first.

I can supply more information if needed but like i say this coding stuff is lost on me.

Thanks for any assistance.
 
   #2  

fukinavit

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Below is a copy of a log of the main modules involved, Any thoughts?

Thanks,

Code:
Monday,25,January,2021,17:12:20:34201
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 18.9.1.0 (x64)
Data version: 20190114 DS296.0
www.Ross-Tech.com


VIN: WA1LMCFE3BD006984   License Plate:
Mileage: 144300km-89663mi   Repair Order: webasto scan 1


-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: None
   Part No SW: 4L0 910 043 D    HW: 4L0 820 043 AE
   Component: KLIMA 4 ZONEN H13 0060 
   Revision: 00---022    Serial number: 00000000262711
   Coding: 0018A036
   Shop #: WSC 31414 790 00001
   VCID: 254BE7B62C649F628E-8070

2 Faults Found:
02095 - Component Protection Active
            000 -  -  - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 80
                    Mileage: 144252 km
                    Time Indication: 0
                    Date: 2020.12.11
                    Time: 10:54:31

             Freeze Frame:
                    Bin. Bits:    01111

00446 - Function Limitation due to Under-Voltage
            000 -  -  - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 80
                    Mileage: 144252 km
                    Time Indication: 0
                    Date: 2020.12.11
                    Time: 11:57:45

             Freeze Frame:
                    Voltage: 9.60 V


-------------------------------------------------------------------------------
Address 18: Aux. Heat        Labels: None
   Part No SW: 4L0 910 105     HW: 4L0 815 071 G
   Component: Heizgeraet      H09 0140 
   Revision: 0000000C    Serial number: 00000009021078
   Coding: 0000101
   Shop #: WSC 31414 790 00001
   VCID: 60C5B6A2B3C63A4ABD-8034

2 Faults Found:
02095 - Component Protection Active
            000 -  -
01233 - Engine Coolant Blocking Valve for Heater (N279)
            010 - Open or Short to Plus


-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 4L0 035 664 B    HW: 4L0 035 664 A
   Component: H-BN-NA       H51 0116 
   Revision: --------    Serial number: 489A30B7544684
   Coding: 010200060004E3EF51002305EF6300030000
   Shop #: WSC 31414 790 00001
   VCID: 2A51148A457AB01AA3-807E

   Subsystem 1 - Part No: 8R0 060 884 P
   Component: NAR 2010  0407

   Subsystem 2 - Part No SW: 8F0 919 604     HW: 8F0 919 604
   Component: DU7 High  H43 0084
   Serial number: 9466L/0A0279180    

   Subsystem 3 - Part No SW: 4L0 910 609     HW: 4L0 919 611 C
   Component: E0380 Bedient  H05 0060
   Serial number: 00000001752416     

   Subsystem 4 - Part No: 8R0 060 961
   Component: CD-Database  1886

1 Fault Found:
02244 - Button in Control Head is Stuck
            000 -  -  - Intermittent
             Freeze Frame:
                    Fault Status: 00100000
                    Fault Priority: 5
                    Fault Frequency: 2
                    Reset counter: 85
                    Mileage: 144117 km
                    Time Indication: 0
                    Date: 2020.11.24
                    Time: 15:36:41

             Freeze Frame:
                    Voltage: 14.70 V
                    Bin. Bits: 00000000 00000000
                    Bin. Bits: 00000000 00000001



End-------------------------(Elapsed Time: 04:19)--------------------------
 
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   #3  

PetrolDave

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Sounds like you need to get Component Protection removed as the first step, IMHO it's possible that not all coding/adaptation options are enabled with CP active.
 
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   #4  

fukinavit

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I am looking into getting the component protection removed by the dealer next week.
I still thought the menu would be displayed but it would just not run the webasto.
Thanks for the help.
 
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