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  1. #1
    Andi's Avatar
    Reverse Gear

    Join Date
    Jun 2012
    London, UK

    RNS-E unit coding (if replacing Mk1 for Mk2)

    I currently have a Mk1 RNS-E unit which has a faulty drive (I've reaplced the laser, still dead ) and the FM has stopped too....

    I want to just replace it with the Mk2 LED version.

    Does the coding of my Mk1 stay with the car, or the unit?
    If I plug in another RNS-E, will it pick up the coding the car had set, or will it be 'reset' and I'll need to get the new unit coded?

    If I need it coding... anyone in North London, or near Gatwick, who has VCDS and fancies a quick coding for a cup of tea?
    /// Andi :: 2010 A6 Avant V6 3.0 TDI Le Mans in Phantom Black
    .: VCDS Mods: VIM, Needle Sweep, Passenger Mirror Dip, Oil Temp with Lap timer, APS+ enabled

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  3. #2
    s8craig's Avatar
    6th Gear

    Join Date
    Jul 2005
    The car will keep any coding for nav etc, but the unit has it's own coding to say what options it expects to see etc. So installing a new unit it will need coding for the cars options, but the coding is identical.

  4. #3
    Johnny Bravo's Avatar
    6+1 Gears

    Join Date
    Jun 2009
    I have the following situation: I've sold a rns-e mk2 unit that was previously coded on a A3. Now it is installed on a A4 (swapped the faceplate to fit). The unit seems to work fine except two things
    1. it does not show anything on DIS
    2. on startup it shows S3

    The A4 used to have a mk1 rnse so the coding should be there. Still, was I supposed to change something to show the information on DIS?
    DSG | Vienna Leather | Bose Sound | MFSW | Interior Lights Pack | Light & Rain Sensors | Auto Dimming Mirror Mods: LED RNS-e | FL LED Tail Lights | Bi-Xenons | Illuminated Speaker Grilles | Tinted windows | Chrome Switches | Chrome Paddles&Commands | RS4 Start Button | Cruise Control | S3 Pedals | S3 Roof Spoiler | 18" BBS CH | H&R Spacers 10/15 mm | Bilstein B16 PSS10 | H&R 26/24 ARBs | TT Arms | S3 Front Brakes+DS2500+Tarox F2000 | HEL Brake Lines | VNT20 | EGR&Cooler Delete | Custom Remap



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