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Stan, Mercedes Technician
Category: Mercedes
Satisfied Customers: 3526
Experience:  Technical support engineer
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I ordered a new key 2006 CLS 550, the car has been parked

Customer Question

Hi, I ordered a new key for my 2006 CLS 550, the car has been parked for 3 months, used the new key to unlock the car and open the trunk to charge the battery, but the car does not acknowledge the key, when using the keyless start as well as using the key in the ignition, What do I do?
Submitted: 1 year ago.
Category: Mercedes
Expert:  Stan replied 1 year ago.

Hello Lila,

When a new key is used, it requires some time to get taught in to the ignitition switch. So, please have the battery charger connected and insert the key. Look at the instrument cluster- if it says ''Computing data''- wait. Then turn the key to next position and check for messages in instrument cluster. This learning procedure can last from 5 minutes to an hour.

Best Regards,