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[Wanted] Audio Gateway HELP PLEASE

Discussion in 'Spares for Sale and Wanted' started by 190E 2.6, Jan 27, 2012.

  1. 190E 2.6

    190E 2.6 Senior Member

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    Your Mercedes:
    C32 AMG /190E 2.6 / 190E 1.8
    Hi

    My better half has a E320 cdi, The command had malfunctioned ,it comes on an off when ever it feels like and not when you want it .
    MB WANT £2,250 for a new unit.

    I have been informed that its the Audio Gateway thats not working.

    However an Audio store said I could purchase an Audio Gateway, which controls the UNIT.

    MB says you cant!!!

    I know I can get a replacement unit from a company call Dynavin but this too is not guaranteed as the gateway may still have to be replaced
     
  2. television

    television Always remembered RIP

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    Your Mercedes:
    2002 SL500, 216 CL500, all fully loaded
    The purpose of the audio gateway task is to

    Central control of the audio processing and amplification stages.
    Sound settings.
    AM&FM RDS decoder.
    CAN B/MOST interface.
    MOST central diagnostic interface.
    DRO microphone input.

    I doubt that this is the problem, why not return the Comand to Becker and have it checked as the gateway has little to do with the comand going off and on
     
  3. OP
    190E 2.6

    190E 2.6 Senior Member

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    C32 AMG /190E 2.6 / 190E 1.8
    thank you for your reply:)
     
  4. npuk

    npuk Guest

    AFAIK any device on the MOST ring that fails or has a problem can cause the Comand to go on and off so it could be be the AGW.

    If the car has put on STAR and the the AGW is showing as faulty and the fibre connections etc have been checked then I would go with what they say. Who checked the car?

    www.comand.co.uk will be able to check they system for you if you want a 2nd opinion.
     
  5. television

    television Always remembered RIP

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    It is a very difficult call as STAR joins up via this gateway, if one has a spare one then dead easy to plug in, it needs a better description of the fault "going off and on" is the screen just blanking or the whole thing turning right off
     
  6. OP
    190E 2.6

    190E 2.6 Senior Member

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    Your Mercedes:
    C32 AMG /190E 2.6 / 190E 1.8
    MB checked the vehicle, but I am not entirely satisfied with their comments and findings.

    When it comes on I get full functions, screen is clear everything is A ok.

    when it goes off ,its off completely.

    Thanks :)
     
  7. television

    television Always remembered RIP

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    Well I still do not think it is a gateway fault, if functions went dead then yes could be, the comand is powered from elsewhere. The comand will still power up with no inputs connected, the is my findings on them
     
  8. Cohiba

    Cohiba Senior Member

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    I think we should all buy a house near Malcolm. Then we could just drop off the problem early morning & collect that evening, fixed. ;):lol:

    Malcolm's tips are so helpful I almost want to go out and buy a duff Merc for him to diagnose,;);)

    Thanks Malcolm.
     
    Last edited: Jan 28, 2012
  9. television

    television Always remembered RIP

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    Never easy on these things, there are many reasons why a comand may not talk to STAR, a common one is the phone module, these thing can put out high voltages where they should not and this shuts the Comand out of STAR.

    The problem is there will always be a new unknown fault at some point with many cars
     
  10. OP
    190E 2.6

    190E 2.6 Senior Member

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    Gentlemen, many thanks

    Cohiba, you made me laugh!!!
     
  11. WG M-B

    WG M-B Senior Member Authorised Forum Supporter

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    Your Mercedes:
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    As Malcolm says the phone controller is one of the prime suspects.
    A fibre loop tool is very handy in these circumstances for fault finding.
    Back in December we had a similar fault with a 211. We took the agw apart and found a broken solder joint inside it. This was thanks to Alfie who was very helpful on the phone!!!
     
  12. OP
    190E 2.6

    190E 2.6 Senior Member

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    Still without a fix but trying every tip ..

    I received an email back from Becker and they gave me two contacts:

    PRS Putnoe Radio Services
    Hartlepoole

    01429 869220

    and Advanced Electronics and Logistics Ltd
    West Midlands

    0121-5226652

    :)
     
  13. television

    television Always remembered RIP

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    You could buy a audio gateway from a breaker on Ebay,and they are not that expensive, no coding required and plug and play as my thoughts could be wrong
     
  14. Alfie

    Alfie Forum Supporter Authorised Forum Supporter

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    If the Audio gateway is faulty and does not come on then the fibre ring may go into bypass mode but this rarely happens. 99/100 the AGW fails and then all the devices on the MOST bus stop working. This is characterised by the Mercedes logo appearing for a short while and then the head unit turning off.

    Without an AGW you will get no sound, phone, CD changer etc.

    Brand new dual tuner AGW's can be had from our shop for £299.

    All the coding for the MOST loop is held in the AGW. Its the MOST master. It really should be coded properly.

    The most common culprit for breaking a MOST ring is a CD changer or navigation drive. The W211 cars have a vent in the rear nearside panel which if it gets squirted with water by a pressure hose allows water ingress to the navigation drive. This causes huge problems.

    The other issue that might be causing you some grief is the AGW just not waking up. Ive seen a number of faults where its just a bad wakeup. In particular damp navigation drives causing an earthing fault.
     
  15. television

    television Always remembered RIP

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    With Alfies post above you do really need to go somewhere where they have a spare AGW some faults become impossible with being able to try a known good component.
     
  16. OP
    190E 2.6

    190E 2.6 Senior Member

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    Once again Thank you so much for all your input.

    MB have the vehicle now just trying to sort this out and will let you know what the final result is.

    :):D
     
  17. OP
    190E 2.6

    190E 2.6 Senior Member

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    Your Mercedes:
    C32 AMG /190E 2.6 / 190E 1.8
    Well, a week later and the results a somewhat sad as MB have come back to say the Comand unit need replacing .

    :confused:

    What do you think of a Dynavin unit?
     

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