Removal of MOST and its components

Discussion in 'Electronics' started by GLK, Jul 27, 2017.

  1. GLK

    GLK MB Enthusiast

    Messages:
    2,658
    Joined:
    Sep 20, 2014
    Location:
    Bozeat, Northants
    Car:
    A200 Sports Coupé C169
    As part of the head unit upgrade, I'm going to retire all the MOST components from the car (A200 C169 2006 WDD169333), including the Audio 20 NTG 2.

    Looking at the EPC (VIN-specific), it doesn't appear to have anything else, but the obvious: CDC, UHI and a phone console, there's no extra amp for the subwoofer/speakers, neither is subwoofer linked to MOST at all:

    [​IMG]

    Am I correct in assuming that, once the Audio 20 is gone, there will be no errors passed on to the instrument cluster, due to the open fibre network, and I do not need to locate and close open loops?

    What I'm trying to establish is whether the instrument cluster (or CPU) rings the MOST on its own, or just gets the info from the Audio 20, and if none is present, than it's fine?
     
  2. renault12ts

    renault12ts MB Club Veteran

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    Car:
    2005 W215 CL500.
    I removed most of mine...no errors showing anywhere.
     
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  3. OP
    OP
    GLK

    GLK MB Enthusiast

    Messages:
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    Location:
    Bozeat, Northants
    Car:
    A200 Sports Coupé C169
    Excellent, so hopefully my assumption is correct, and the diagnostics of the MOST network is done by the head unit itself :thumb:
     
  4. OP
    OP
    GLK

    GLK MB Enthusiast

    Messages:
    2,658
    Joined:
    Sep 20, 2014
    Location:
    Bozeat, Northants
    Car:
    A200 Sports Coupé C169
    Just a quick note for anyone, looking into a similar situation: as Ciaran said, no errors, which is great.

    I removed all the MOST components, and the telephone console, didn't use any fibre optic loops on the open-ended points of the network, as it is completely redundant now - just some Tesa tape and self-adhesive foam, to keep the large plugs from knocking about, and that's that.

    The instrument cluster display shows the correct info on a music track, played off a USB drive (although it classifies the source as SD, as if coming from a COMAND unit, I guess); a phone connected to the new HU, is operational via the steering wheel with [rudimentary, as before] display in the instrument cluster.
     

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