Question about Mercedes-Benz E320
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Posted on Jan 02, 2017
SOURCE: e320 car key doesn't work
It's a smart key with a chip inside, the doors open by the conventional mechanical control of the key. The keyswitch for the engine "looks" at the computer chip and makes sure no one with a sophisticated key machine that could copy your key ... will be able to start your car ... unfortunately this means when the chip in the key or circuitry in the ignition switch fail ... you can't start it either ;~(.
Posted on Oct 30, 2008
Hi! Sounds like the key needs to be coded again, take all relvant details i.e. chassis vin number, Registration document (Title) and key to your local Mercedes Dealership and hopefully they'll rec-code it for youor replace it.
Good Luck and a Happy New Year to You and your family.
Remember the blue FixYa button?
Posted on Dec 29, 2008
Tips for a great answer:
Dec 10, 2015 | Mercedes-Benz E-Class Cars & Trucks
Reset your Mercedes-Benz key by placing the key in the ignition of your vehicle while the vehicle is turned off. Do not turn on the vehicle. Press a finger on the "lock" button of your key fob while the key is in the Mercedes' ignition.
Pull the key out of the ignition while continuing to hold the "lock" button down. Continue to hold the "lock" button for the duration of the key resetting process
Use another finger to push down on the "unlock" button five consecutive times. Keep holding down the "lock" button.
Release the "lock" button. This is the end of the resetting process for your Mercedes-Benz. Use your key fob to ensure it is properly working
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