davidduk
Member
- Joined
- Mar 13, 2019
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- Your Mercedes
- C190 W202 1996
Hi
Can anyone help please?
I picked up a brand new ignition key for my 1996 C180 W202 today from Mercedes main dealers.
I drove to the main dealers using my old key. Once there I locked the central locking system using the old key. The old key has been locking and unlocking the central locking system perfectly. At the dealers the new key was synced to the vehicle and as expected worked first time. I drove home and locked the central locking system with the new key and then I left the new key in the house to use as a spare if needed.
So far so good. I went back to my car and went to unlock the central locking system using the 'old key' (that was worked perfectly before even while I was at the main dealers 30 minutes earlier) but now it would not unlock the central locking system. I had to get the new key from indoors and I tried that and of course it worked perfectly. So I now have a new key that unlocks the central locking system but my old key won't (I've tried re-syncing the old key but it doesn't want to know).
Question: Is this what happens when you sync a brand Mercedes Main Dealer key to your vehicle? In other words, once you have a new key from the Mercedes factory does the the old key become obsolete (to do with the programming of the new key perhaps)?
Or... is it by some amazing coincidence that my old key that was working perfectly well when I arrived at the main dealers suddenly developed a fault on the 20 minute drive home, even though it wasn't being used?
Note: The batteries are fine, brand new quality batteries fitted a couple of weeks ago and working without a problem ever since.
Thank you
Can anyone help please?
I picked up a brand new ignition key for my 1996 C180 W202 today from Mercedes main dealers.
I drove to the main dealers using my old key. Once there I locked the central locking system using the old key. The old key has been locking and unlocking the central locking system perfectly. At the dealers the new key was synced to the vehicle and as expected worked first time. I drove home and locked the central locking system with the new key and then I left the new key in the house to use as a spare if needed.
So far so good. I went back to my car and went to unlock the central locking system using the 'old key' (that was worked perfectly before even while I was at the main dealers 30 minutes earlier) but now it would not unlock the central locking system. I had to get the new key from indoors and I tried that and of course it worked perfectly. So I now have a new key that unlocks the central locking system but my old key won't (I've tried re-syncing the old key but it doesn't want to know).
Question: Is this what happens when you sync a brand Mercedes Main Dealer key to your vehicle? In other words, once you have a new key from the Mercedes factory does the the old key become obsolete (to do with the programming of the new key perhaps)?
Or... is it by some amazing coincidence that my old key that was working perfectly well when I arrived at the main dealers suddenly developed a fault on the 20 minute drive home, even though it wasn't being used?
Note: The batteries are fine, brand new quality batteries fitted a couple of weeks ago and working without a problem ever since.
Thank you