HELP.... Key not recognized
Thread Starter
Senior Member
Joined: Jun 2010
Posts: 314
Likes: 5
E class
I would say correct however they've done numerous installs on cars much nicer than Mercedes and came highly recommended from other Mercedes owners in my area. I did call them and they realize it was working before they startrted doing the install. They suggested unhooking then reconnecting the battery but no luck!
Do I need a new key? I only have one
Do I need a new key? I only have one
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
You should be able to program the key yourself by putting it in the ignition and rotating the key to the 1st position and let it sit for a couple of hours. Put the rear battery on a charger if you're worried about killing power.
The dash will say something like "Learning Key"... eventually the pairing will be complete and you can use the key as normal. I don't know if you have keyless go, but it works fine for that too.
I bought a new key from the dealer and did this procedure in my own garage and it works perfectly....
-G
MBWorld Fanatic!
Joined: Dec 2008
Posts: 7,217
Likes: 6
3-five-five/ TUNDRA/ 07 997 cab
You should be able to program the key yourself by putting it in the ignition and rotating the key to the 1st position and let it sit for a couple of hours. Put the rear battery on a charger if you're worried about killing power.
The dash will say something like "Learning Key"... eventually the pairing will be complete and you can use the key as normal. I don't know if you have keyless go, but it works fine for that too.
I bought a new key from the dealer and did this procedure in my own garage and it works perfectly....
-G
The dash will say something like "Learning Key"... eventually the pairing will be complete and you can use the key as normal. I don't know if you have keyless go, but it works fine for that too.
I bought a new key from the dealer and did this procedure in my own garage and it works perfectly....
-G
MBWorld Fanatic!
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
Not sure about all the specifics... I needed to provide my VIN to the dealer to buy the replacement key, but I think that was so that they could order the correct one (I needed Keyless GO)
I remember asking MB how I could be sure that the "lost" key could never be used to drive my car in the future. There may have been something the dealer did with STAR to clear the previous keys and only allow the two current ones to work. Honestly, I've forgotten the details about how that all worked. They basically sent me home with the key and told me I could do the pairing myself so I didn't have to wait around for a couple of hours while my car tried to learn it.
My point to the OP was only that if the key was previously paired with the car, the ignition trick might be all that's necessary. It seems unlikely that STAR settings as important as key pairings would be lost simply be disconnecting the battery?!
-G
I remember asking MB how I could be sure that the "lost" key could never be used to drive my car in the future. There may have been something the dealer did with STAR to clear the previous keys and only allow the two current ones to work. Honestly, I've forgotten the details about how that all worked. They basically sent me home with the key and told me I could do the pairing myself so I didn't have to wait around for a couple of hours while my car tried to learn it.
My point to the OP was only that if the key was previously paired with the car, the ignition trick might be all that's necessary. It seems unlikely that STAR settings as important as key pairings would be lost simply be disconnecting the battery?!
-G
