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D3 - Interior Electrics Airbags, Sensors, climate modules, instrument clusters, switches etc

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Old 16th November 2015, 09:31 AM
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Default D3 S8 - bizarre HVAC button issue

OK, so here's a picture of my car's HVAC.



"Looks fine", I thought. I wanted to play with the settings for the solar sunroof, HVAC sync and centre air vent etc. Then I began to think something didn't quite look right compared to my last D3...

...there's no 'SETUP' button and no way to get into the setup menu! There's nothing in the manual about having the A/C button where mine is in the picture above. I also can't find another D3 for sale (facelift or otherwise) with an A/C button in place of the normal SETUP button and I even began looking at S6s and S5s to see if the control unit had been lifted out of another car. I also can't find anything online to do with this. Someone has played with the MMI before though as when it boots up, it shows the S6 splash screen instead of S8. Easy to change but makes me think what else has been tinkered with.

So I'm really stumped. Can anyone shed some light?
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Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8

Last edited by Conquistador; 16th November 2015 at 09:42 AM.
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Old 16th November 2015, 09:51 AM
mattylondon mattylondon is offline
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I found this unit on ebay.de which has the AC button. The date stamp on the rear is from 2009. Maybe it was swapped out at some stage.

http://www.ebay.de/itm/171427549087



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Old 16th November 2015, 09:56 AM
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Ah, good find. Strange though that the manual doesn't show the AC button anywhere throughout the whole book and I can't get into that SETUP menu.
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Currently '8-less
Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8
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Old 16th November 2015, 12:03 PM
PsYcHe PsYcHe is offline
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Maybe a 3G unit that's been dropped into a 2G car?
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Old 16th November 2015, 12:10 PM
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Quote:
Originally Posted by PsYcHe View Post
Maybe a 3G unit that's been dropped into a 2G car?
Hmm possibly. It's got AMI with DAB and Freeview etc., but the MMI knob doesn't have the directional button on top.

I've searched more and found a couple of late D3s (2009/2010) which have the AC button where the SETUP normally is.
__________________
Currently '8-less
Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8

Last edited by Conquistador; 16th November 2015 at 02:43 PM.
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Old 16th November 2015, 12:33 PM
mattylondon mattylondon is offline
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Quote:
Originally Posted by PsYcHe View Post
Maybe a 3G unit that's been dropped into a 2G car?
That has to be the answer.
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2004 A8 3.7q, 1998 A4 2.8q, 1994 Coupe 2.8q SORN,
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Old 16th November 2015, 02:39 PM
Pug Pug is offline
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So how would one access the equivalent 'setup' menu without the designated button on the HVAC controls?
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Old 16th November 2015, 03:02 PM
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So what exactly does that button do when you press it Ollie?

Anything at all?
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Old 16th November 2015, 03:36 PM
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Well it seems to turn the AC on but the HVAC controls do seem to have a mind of their own. Press the passenger's air direction and the screen shows the driver's fan speed, and things like that. The small LCD screen in the HVAC unit always shows the correct setting when the corresponding button is pressed but it doesn't always relate to the graphic which comes up on the MMI screen.
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Currently '8-less
Previously:
- Aqua Blue Pearl D3 S8 - Kamut Beige leather, ACC, B&O, factory RSE, solar sunroof, electric blinds, ski bag, Homelink, comfort headrests.
- Aqua Blue D2 S8 - Grey leather/Alcantara
- D3 A8 3.0 CVT
- D3 3.7 V8
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Old 16th November 2015, 05:23 PM
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Adrian E Adrian E is offline
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If you do a full vcds scan it should report the part number for hvac and also report any coding issues causing problems. If it's anything like an mmi 3G+ retrofit to a 3G the coding is far from obvious

If you're missing functionality as well and the module is 'wrong' for the car I'd look to replace with a correct one
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