Ok so this seems to be a big hit all of a sudden and I love helping out another AZ'er so to all you interested in doing this DIY this is for you guys.
Intro:
Its amazing, people might argue with you and say why spend money on small little mods. But like the old saying goes, its the little things that count. This is a very simple mod, and essentially if you can work a heat gun and use a screwdriver you can do this mod. In the end you will have a working b7 key and a plastic key that is good for opening the doors, glovebox, and trunk. it WONT be able to start the car. Its nice because if you go surfing, swimming, go work out, or any place you dont want to risk an expensive switchblade key. Best part is you dont need VAG to do this!!
Tools Needed:
Heat Gun
1x b6 plastic key
1x B7 switchblade
Screwdriver
Blade (ex carpenters knife, or slim blade) I used a swiss army knife
Instructions:
Start off by taking your plastic key and look for the opening the plastic key.
Simply flip the plastic key on its belly (opposite to the audi logo) and take your blade and gently pry it in. (The keyword is GENTLY because otherwise you might crack the key plate, or worse break the IMMO)
Once you get the blade in, rock it side to side and you should see the key open. Remove the blade and use your fingers to pop it open. Once open it will look like this and you will see inside the IMMO (note: I already removed the IMMO from this key)
Now here is the tricky part, please do exactly what I say otherwise you'll risk cracking the IMMO chip. Take the heat-gun and heat the IMMO chip and the plastic around it. DONT MELT THE KEY, just get it toasty, and with your blade or mini screwdriver play with the IMMO chip and try to get it out. Your on your own trying to get it out because Audi puts a drop of glue on the IMMO to hold it in place and every key is unique. Just try to get that glue warm and goooy. Once out close it all up and you have a plain old plastic key with no IMMO.
Now grab that B7 key you are doing the swap into. Take your flat head screwdriver and pop the battery door off.
Once off you will see three screws. One gold and two silver. Use your screw-driver to remove them.
Once the screws are out the key is going to want to explode open, thats because of the spring inside.. Just simply take your b7 remote and unwind slowly the spring.
Now you have split the remote into two you should see something like this:
...YES that Gold lettering tells you what that keyfob once belonged to. Turns out mine was once the key to an A5.. (I have three b7 remotes, one I use, one is a backup, and the other I broke, and they all have different Audi Models. Once is an A5, another is an A6, and the last one is an A4)
Ok back to the serious stuff again, Once you have the remote in two pieces, use a flat head screw driver and pop the electronics board off.
Once out you will see this:
We are going after that gray piece in the corner of the remote. Take your flat head and gently pry it open. This might require you to go from every side and lightly give it a tug with the flat head...
Once you remove it you will find the old IMMO (or new one, depending on what the auction seller did with it)
Now all you need to do is work backwards to the part when your B7 remote looked like this:
Now that its all together, if you have had the key cut you may proceed to this next part. If not get the blade cut and then come back.
To program the remote to work. Just like your manual says unlock the car with either a spare key or use the blade, click unlock twice on the b7 remote. Then put the B7 blade into the ignition and turn it to the ON position... NOT past to turn on the car! Once in ON position click unlock, lock, lock and remove the key. Now when you click a button it should work!
VIOLA! Your Done!!
Now you should have plenty of keys for your Audi!
If you have any questions feel free to PM me, or drop a line and comment. Please note, I am not responsible for what you break or what might go wrong in your B6->B7 conversion process. If something doesn't go according to plan, I will try my best to help.
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