W202 -1997 Model Year C200 Key

Discussion in 'Electronics' started by Grahamcol, Dec 16, 2008.

  1. Grahamcol

    Grahamcol Hardcore MB Enthusiast

    Messages:
    387
    Joined:
    Nov 28, 2007
    Location:
    West Midlands
    Car:
    2000 W202 C280 and 2001 SLK230
    I have 2 infra red keys (single button type with folding blade) and on both of these the red light comes on when I press the key button. However, only one of them will operate the central locking. This is despite brand new batteries being put into the (non working) key. I'm wondering whether it's just a case of programming the car and other (non working) key to make them "see" each other ? Alternatively, although the red light works in the other key, could it be that this key is not functioning somehow ? Anyone got any ideas please ?
     

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