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Lost ML320 Audio System Security Code

I lost my Mercedes Benz ML320 Audio System Security Code. I can't play the radio, cassetes or audio disc. My ML320 Chassis number is 4JGAB54E81A259716. PLEASE HELP ME.

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  • vyannasmom Feb 27, 2009

    i lost my ML320 security code to unlock th e radio and now drivin it sux plz help

  • Anonymous May 21, 2009

    I called the Mercedes USA (1-800-367-6372) gave them my VIN # and they gave me the unlock code over the phone. I first had to provide proof of ownership, which I faxed to them. That was it.

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I punched in sec. code and nothing happened-what to do? halp.

Posted on Mar 01, 2010

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A trip to a Mercedes dealer with your log book and proof of i.d and provided the stereo is the origional factory fit then they should be able to track down the code and instal it for a minimal fee.I needed a new key for my c36 amg,gave them the info from the log book and an origional pre programed key arrived 4 days later from germany.

Posted on Oct 27, 2008

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You need to notify dealer they will be the only one who has un-loc code for radios the loc mode is part of ur security system only problem when working or with a dead battery puts the radio system in loc mode and if u dont have code u need to notify dealer also if u put in a wrong code to many times-- vehicle would have to be brought in to be reset by the dealer

Posted on Mar 01, 2010

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My Ml320 Vin 4JGAB54E6YA148480

Posted on Oct 01, 2009

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Lost ML320 Audio System Security Code


Locate the manuals you received when you purchased the car. On the inside cover (front or back) of one of them, the dealer should have pasted a white rectangular sticker with black print identifying the code for the radio. In my case, it was pasted on the inside back cover of the Owners Manual. The sticker has the MBZ emblem on the right, and alpha-numeric text on the right of the emblem making up 3 lines. One line has the code you are looking for, the other has the serial # of the radio.

Alternatively, contact a dealer near you, or send a letter to MBZ. If you send a letter to MBZ you must include the VIN #, and may want to include somthing to prove the you purchased the car and you shipped it to Africa.

Good luck.

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