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Thread: 2013 A6 Allroad 4G C7 - xenon retrofit

  1. #31
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    I just tried adding the headlight controller at address 55 into the CAN gateway installation list and got an 'ERROR 31 out of range' response - is that because the gateway needs to talk with the new module before it confirms happy - or do I need to change CODING on the gateway before it allows me to add anything on the EXT bus ?

  2. #32
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    Pretty sure out of range means that your controller is not compatible. Even when you add a code to a module if the module is compatible it will accept it and throw up other error codes.
    A6 BiTdi Avant MTM
    Retrofitted: Full Led Headlights, DAB, Full Electric Seats, Power Tailgate, Surround View Cameras, Genuine RS6 Grille, RS6 Seats,Leather Door Armrests, Soft Close Doors, Rear Side Blinds, Electric Steering Column, LED Sill Plates, Ambient Lighting Pack, High Beam Assist, Eibach Springs, Led Roof Console, 4 Zone Climate, Rear Heated Seats, Head Up Display, Side assist, Alcantara Interior Retrim

  3. #33
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    Yeah that figures. A bit of googling found this one that will work - others are certainly viable, but would be great to find a reference of the main contenders:

    Part No SW: 4G0 907 468 E HW: 4G0 907 468 A
    Component: J533--Gateway H08 0213

    So... I can easy find of those on auction sites for OK money, but is there any particular procedure to pay attention to when swapping over to another CAN gateway - is it just a matter of matching up the CODING and INSTALLATION LIST or something more painful ?

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  5. #34
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    So I've rolled the dice on a 2nd hand CAN gateway as above and will take extra care with coding when it arrives to avoid any disasters. I also sourced some fusebox pins of the right size for the mini fuse SB3 @ ST1 - the terminal provided on the Kufatec loom is only suitable for the normal sized fuses and there isn't a spare location available that size. No point in lashing up a quick alternative as I am also waiting for new pins for the CAN gateway plug as well.

    Almost 1k of parts for the conversion to get this far and held up by a handful of stupid pins just to make everything legal (UK regulations mean that cars with variable height and xenon lights need to have beam patterns that are height adjustable).

    Well I suppose thats what the forum is for - my delays will help the next guy do it better/faster (and with less posts) ;-)

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  7. #35
    Ross-Tech Employee Dana's Avatar
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    I cannot add clarity to the PR-Codes associated with 8F-Pretens. Frt Left (J854) and 90-Pretens. Frt Right (J855) but the 2012 NAR (4G) Ross-Tech A6 has them:

    https://forums.ross-tech.com/showthr...ll=1#post45818

    There may be a SSP that I could refer to ..... however it won't directly help with the extended data-bus problem. I'll report back if I have any additional coding/adaptation suggestions for your existing 19 module.

    P.S. On the 09-BCM1 front, we have the 4H0-907-063-V2 label pretty well sorted at this point so I'll be able to get those contributions you made for 4H0-907-063-V1 (in addition to MVBs and similar) added next.

    P.P.S. I subscribed to this thread as a reminder to ping you back if I need any MVBs or similar confirmed in the V1 label file.

  8. #36
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    Maybe the pre-tension controllers is a NAR thing - the only SSP I found was Audi of America flavoured and it referred to them as standard items, but this UK wagon is MY2013 and J854/855 are definitely a no show. My ETKA suite is too old for this car so I cannot go delving into all the PR codes.

  9. #37
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    Send me your vin no and i'll see what i can get for you (PR codes)
    A6 BiTdi Avant MTM
    Retrofitted: Full Led Headlights, DAB, Full Electric Seats, Power Tailgate, Surround View Cameras, Genuine RS6 Grille, RS6 Seats,Leather Door Armrests, Soft Close Doors, Rear Side Blinds, Electric Steering Column, LED Sill Plates, Ambient Lighting Pack, High Beam Assist, Eibach Springs, Led Roof Console, 4 Zone Climate, Rear Heated Seats, Head Up Display, Side assist, Alcantara Interior Retrim

  10. #38
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    Nice suggestion morski - guess you have access to an official version of something to check all those PR codes. That maybe partially explains why your MTM wagon appears to be the work of some kind of OE retrofit fetishist ;-) Meanwhile, this much more modest wagon has VIN = W-AU-zzz-4G-9-D-N-002-232

  11. #39
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    Quote Originally Posted by nugentp View Post
    Nice suggestion morski - guess you have access to an official version of something to check all those PR codes. That maybe partially explains why your MTM wagon appears to be the work of some kind of OE retrofit fetishist ;-) Meanwhile, this much more modest wagon has VIN = W-AU-zzz-4G-9-D-N-002-232
    Yes i have some access to the official system. PM me your email address so ic an send screen shots of your cars details over.
    A6 BiTdi Avant MTM
    Retrofitted: Full Led Headlights, DAB, Full Electric Seats, Power Tailgate, Surround View Cameras, Genuine RS6 Grille, RS6 Seats,Leather Door Armrests, Soft Close Doors, Rear Side Blinds, Electric Steering Column, LED Sill Plates, Ambient Lighting Pack, High Beam Assist, Eibach Springs, Led Roof Console, 4 Zone Climate, Rear Heated Seats, Head Up Display, Side assist, Alcantara Interior Retrim

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  13. #40
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    The correct fusebox pins arrived today so while I was there fitting the 12V connection for the AHLS module, I decided to wire up a traditional SPST relay circuit to drive the old fog-lights when the 'all weather / corner lights' inside the bi-xenon lamps are active. This is pretty simple except for reasonably tight access to the right pins for splicing etc.

    Reason for doing it this way was a few things:
    1 - don't want to fail MOT for having some forward facing lamps that don't work
    2 - don't want to spend over 100 bucks for OE blank plates to delete the old fogs
    3 - never foresee retrofitting ACC onto this wagon, so won't be needing forward facing radar units in place of the old fogs

    Anyway - for the record its a very simple circuit, described below:

    Relay #30 - 12V supply, protected by 10A fuse on SB10 @ ST2 (this wagon does not have a sunroof - useless leaky things they can be)
    Relay #86 - activation signal from pin 8 of red (or brown) plug at the BCM (J519) - this is 12V when all-weather lights active with bi-xenon coding
    Relay #85 - 0V chassis connection at bottom of A-pillar
    Relay #87 - relay output to both old fog-lights (L22 & L23) - the wires for which were removed from the red and brown BCM plugs as part of the loom conversion

    I found a location just above the pedals where the new relay doesn't look too out of place - I didn't have time to source the correct OE relay carrier which will outrage the purists but I think I will sleep at night.

    Obviously easy to test and not one line of software or VCDS interaction required - activate front fog lights with the normal switch and enjoy the extra illuminations from the old school relay - then get depressed at the colour difference compared to the shiny new xenons, but hey its something extra.

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