Hi everyone. I did a key for a 2014 mbz c klass w204, all keys lost. Now, the key opens, elv click but won't start the car. I did the again on an existing key spot again nothing. Dash opens but wont start. The battery is ok. The remote functions ok. On the cluster it says" key calculating" I did 2 other keys and the same thing on this car. What seems to be the problem????? Can you guys help out with this? Thnx in advance
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