Keyless Go

Discussion in 'Electronics' started by tanuie, May 1, 2014.

  1. tanuie

    tanuie Hardcore MB Enthusiast

    Oct 1, 2012
    Ely Cambridge
    C Class 350 Sports Edition Coupe W203
    Hi, I have just bought a CLK 320 2005 it comes with keyless go which does not work, I was told this before buying it which I accept, however are these systems problematic and what is likely the most common cause.
    Do you have to have a star diagnostic to tell you the problems.
    Me being me I have to have everything working if it's fitted to the car.
    Many Thanks.
  2. miro

    miro Hardcore MB Enthusiast

    Mar 1, 2004
    Sydney NSW Australia
    W203 slightly modified
    If the car is factory fitted it is a relatively simple fix.

    Areas to probe.
    - door locks
    - door handles
    - door modules
    - centre console module
    - gear selector
    - trunk wiring
    - main control module on the rear fuse box

    As a safety feature, keyless go stops working if it is broken somewhere. Assuming the car is 100% original and not been tampered with, these faults are uncommon.

    Once you identify the fault with a diagnostic you do a software startup process and it all resets itself. It even pops the doors open sequentially to validate the door locks. Cool to see it in the self test.
    1 person likes this.

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