M-Class (W163) Produced 1998-2005: ML 230, ML 320, ML 350, ML 400 CDI, ML 430, ML 500, ML 270 CDI

Keys reset??

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Old Sep 4, 2002 | 11:34 PM
  #1  
mohfo's Avatar
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Keys reset??

Recently my car died, so I did a full tune up; air filter, spark plugs, fuel filter, alternator. The car still didn’t start up, so I took it to a mechanic, and he told me I had to reset my keys! Sure enough it worked. Has this happened to anyone?
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Old Sep 5, 2002 | 12:22 AM
  #2  
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2001 ML 320, M6 Package
Smile Key reset

I recently bought a 2001 ML 320. I was giving 2 keys without knowing that the second key does not . I followed the manual to sync the key to the car. It still does not work. I finally took it back to the local dealer to reset the key. Sure enough, it works.
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Old Sep 5, 2002 | 10:37 AM
  #3  
Laszlo's Avatar
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From: Ft. Lauderdale
Mercedes ML430
key discoded

I have used one key only and a spare was in a closet. 1 year later a key that I used died, I replaced the battery but no help.
Called dealer and they said the truck and key has to be synchronized. 3 seconds later it was all oke. This is an anti-theft device working up against the illegally copied keys.
Did you see the Gone-in-60-seconds movie, they had a copy and it worked for a car, but they needed the car and computer and a key all toghether and synchronize them. They went after the guy to get close to him and copied the codes. I'm not really sure it is possible, but I guess if the money is great, anything is possible.
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