Request for help - HVAC
 

Dear fellow A8 M8s
I have a problem with the coding on my 08 HVAC - there is no coding helper in VCDS is it just mine?
I have tried a few codes I found online but this caused all kinds of problems.

Please can anyone with the following or similar spec dig out a VCDS log and copy and paste then post their [08] HVAC coding....

A8L 3.0TDI 2006
Right hand drive
Quad-zone climate
Front and rear heated seats
Auxiliary heater
No vented seats
No sunroof
No heated windscreen

Thanks you!

Here is mine.

Address 08: Auto HVAC Labels: None
Part No SW: 4E0 910 043 HW: 4E0 820 043 A
Component: KLIMAAUTOMAT 015 0240
Revision: 00000018 Serial number: 00000000023996
Coding: 1069057
Shop #: WSC 02311 785 00200
VCID: DABB0B6F150DF5CE353-808F

Is this of any help?

http://www.audi-resource.com/ecu08.php

This is mine

Address 08: Auto HVAC Labels: None
Part No SW: 4E0 910 043 B HW: 4E0 820 043 G
Component: KLIMAAUTOMAT 017 0450
Revision: 00000032 Serial number: 00000000106345
Coding: 0057465
Shop #: WSC 02313 785 00200
VCID: 1C373B69DFDF87F8DC3

A8L 3.0TDI 2006 / Petrol 5.2
Right hand drive
Quad-zone climate
Front and rear heated seats / Front heated only
Auxiliary heater / No Aux heater
No vented seats
No sunroof / Have sunroof
No heated windscreen




HAVE YOU SEEN THIS SITE http://www.netech.dk/index.php/ecuuk

It may be worth you looking through your debug logs to see what you have changed in the past.

goto

c:\Ross-Tech\VCDS\Debug\CodingLog.txt (coding changes history)

or

c:\Ross-Tech\VCDS\Debug\AdpLog.txt (adaptations changes history)


Good luck

P.s if you have time I recommend you and everyone else to do the following it will help us all in the long term I'm sure http://wiki.ross-tech.com/wiki/index..._can_I_help.3F

A big thank you guys - going out now to have a fiddle.
EDIT**
Great stuff- I set a new code of :-

code 1
1+2+8+16+64 = 155
code 2
2048+16384+32768 = 51200
code 3
65536

TOTAL CODE = 0116891

I hope I did that right, I have all the correct options afterwards anyway.

I also set these adaptations (although some already set and others not implemented)
06 0=intelligent aux heat/vent
07 1=shut off time aux when ign off
08 1= voice recognition quiet mode
16 1=activate aux heater if required for residual heat function
18 0=shut off when energy manager says so
19 0=use aux heater when required by heater demand
20 1=rear heated seats not switched off after 10 mins
21 1= add another line to MMI

I hope to add the valve and electric pump to the Webasto heater one day.

Rear heated seats still don't work.
Fuses OK, switches show as on, MMI shows them as present and on.
I have disabled the 10 unoccupied minute timeout.
Seats remain cold.
I looked in measuring blocks of 08 HVAC and can see the temperatures of the seats as ~8˚c and it also shows all 4 seats as unoccupied even when I sit on them. Maybe that is the problem?

Hi. i did activated the additional heating and ventilation but not the engine worm... how to do that ? thanks

Snap, did you get any where with AUX pump fitting?

I fitted the water pump to the auxiliary heater on my car but it's a 4.2 tdi , if you need to ask any questions about it will try to help