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2001 CLK 320
5 Posts
Discussion Starter #1
Seems one key has gone bad-- does not open doors or start car. Batteries on both register 5v each and swapped batteries with good key. Can I (or dealer) test the key? I have seen some stuff about leaving key in ingition for 45 mins and then "ON" for 15 mins and the control unit will fix the key.

Any ideas?

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