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This isn't that simple. It can be done, However, the key you lost is programmed to that specific car. The key and ignition from the other vehicle is programmed to that other vehicle. It's a security feature to stop people using any key on any car. You would need to get the replacement ignition barrel programmed to the vehicle you've moved it to. This is normally a Dealership Only job so it will be Dealership prices so Expensive. It will be quicker, easier and a lot cheaper to just replace the lost key. Take all you vehicle documents to the dealership and get them to program you a replacement.
DIY Replacement Ignition KeySubject: DIY Replacement Ignition Key Title: What to do if you need a replacement ignition key
Overview:
There are times where you may need a replacement key. This can be the cause of a lost key, a key going bad, upgrading from the non all-in-one key to the all-in-one key.
Please keep in mind that if all keys are lost, there is NO WAY to program a new key to you car and a replacement TWICE module will have to be found with a key, either new (costly) or used and be married to the car via the dealer.
Symptoms:
Need a key, key is giving intermittent "bad key" messages and will not start the car, etc.
Experience Level:
Easy
Tools Needed:
Probably none, or a small tool to take the door off of a key via the hole in the side for the all-in-one key.
Time Needed:
Not much.
Parts Needed:
Key Blank from Dealer about $40 This is cut to your car. Key Top from Dealer about $40 This is the "key guts" all-in-one guts from Dealer about $90 all-in-one guts from ebay about $30-$60 key door from dealer for all-in-one key about $15
Procedure:
There are a few cases that can be covered
Case 1: Non All-in-one key replaced by non All-In-One key.
Subcase A: Have a non all-in-one key that is going bad
Solution: The dealer will have a replacement top for the key. Get the top, replace the top of the key and have it reprogrammed for the car. Total cost about $40 + $30.
Subcase B: Replace with all-in-one key because they are neato and / or the other key is lost.
Solution: Order the "Key Blank" from dealer and obtain the guts for the all in one key from ebay or the dealer. Have keys programmed by dealer. Total cost about $35 + $30 + guts cost.
Case 2: All-in-one key replaced by All-In-One key. Subcase A: Have key but is not working.
Solution: Get guts and have it programmed. Cost about $30 + guts cost.
Subcase B: Lost key, need a new key
Solution: Get Key Blank and guts and have it programmed. Cost about $35 + $30 + guts cost.
Outcome:
Very nice. Replacing the non all-in-one with the all-in-one dramatically increased the range of the remote. over the banana style remote.
Notes:
- Replace the battery in the guts if you get them off of ebay. - You have to have all keys and remotes to dealer for programming. - The guts for the non all-in-one key do not have the remote guts - The guts for the all-in-one key have the security and remote in one - The key shaft from the ebay all-in-one key can be discarded
did u get a key that was the proper code? these keys have a little piece of resistive wire embedded in the key, does the key u had made have that? if not it will not work, u can't just get a key cut, they have numbers to select the proper resistance value for the key to work with your security system.
replacing the complete lock set with the EWS control unit can be expensive as the control unit will also need to be programed and/or encoded, however if the lost keys cannot be found and you are sure they cannot be used to steel you car you can just order replacement keys from your local bmw dealer. hope this is of some help. You will also nead to disable the lost keys if you order replacements rather than a complete set.
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