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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 12-04-2013, 10:24 PM   #1
L3MONz
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Lost My Only Key to My E46

I have came to the conclusion that I dropped my key on the ground and someone else picked up or I have lost it in Narnia because theres no way it's in my house. Are there any security measures I could possibly take? Maybe calling my insurance company to open my car and remove the fuses to starting the car? Also how much would it cost for BMW to make a brand new key without an original copy? I'm hoping it's the same price of a new key if I had the original.

**Edit** Meant to say without the original key.
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Old 12-04-2013, 10:27 PM   #2
HBizzo88
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Lost My Only Key to My E46

My key cost me $225.


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Old 12-04-2013, 10:35 PM   #3
L3MONz
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Originally Posted by HBizzo88 View Post
My key cost me $225.


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But you had your original key with you still, right?
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Old 12-04-2013, 10:36 PM   #4
Cazz
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The price varies from dealer to dealer, but expect $170 to $300 for a new key.

It doesn't matter if you have the old key.
The procedures is the same:
- The dealer will submit an order to BMWNA.
- BMWNA looks up your car in their database and selects/creates the next unused key for your EWS. There are 10 total.
- The new key is shipped to the dealership.

You can program the remote yourself. Once you do this, the remote on the old key won't unlock the doors.

The dealer can lock out the old key from the EWS so it can't be used to start the car. They will probably charge an hour of labor to do this.

Even though the old key is locked out of the EWS, the old key can still be used to manually unlock the doors.


You can pull one of the big fuses from the ECU box under the hood and the car won't start until it is replaced.

Last edited by Cazz; 12-04-2013 at 10:45 PM.
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Old 12-04-2013, 10:44 PM   #5
VishTheFish
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Bad luck OP, i suggest you order a spare as well!
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Old 12-04-2013, 11:19 PM   #6
L3MONz
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Originally Posted by Cazz View Post
The price varies from dealer to dealer, but expect $170 to $300 for a new key.

It doesn't matter if you have the old key.
The procedures is the same:
- The dealer will submit an order to BMWNA.
- BMWNA looks up your car in their database and selects/creates the next unused key for your EWS. There are 10 total.
- The new key is shipped to the dealership.

You can program the remote yourself. Once you do this, the remote on the old key won't unlock the doors.

The dealer can lock out the old key from the EWS so it can't be used to start the car. They will probably charge an hour of labor to do this.

Even though the old key is locked out of the EWS, the old key can still be used to manually unlock the doors.


You can pull one of the big fuses from the ECU box under the hood and the car won't start until it is replaced.
Thanks man, you have no idea how much you just helped me with just this reply!
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Old 12-05-2013, 12:09 AM   #7
L3MONz
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Also, what fuse should I pull out? Don't wanna mess up anything important..
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Old 12-05-2013, 02:58 AM   #8
cityjohn
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Maybe someone found your key and put it in Santa's bucket

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Old 12-05-2013, 05:42 AM   #9
bmwguyNC
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You can deactivate the lost key using PASoft when you receive your new one.

Last edited by bmwguyNC; 12-05-2013 at 05:43 AM.
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Old 12-05-2013, 08:02 AM   #10
moiz21
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Send an email to this guy: pcasey@faulknerbmw.com

He is: Patrick- BMWPartsSource

A vendor for the site. He works out of PA at a dealership. He was able to get my brother a key without the remote, for $76. He is probably your best bet for a cheap key replacement. You just have to supply a copy of your driver license and registration, to prove ownership.
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Old 12-06-2013, 01:15 AM   #11
Lusticles
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And hope that you haven't maxed out on key replacements. I think you can only have 7 replacements per vehicle? My buddy lost his E39 key and turns out the PO had already used up all the replacements. According to the dealership, anyways.
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Old 12-06-2013, 01:31 AM   #12
VishTheFish
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Originally Posted by Lusticles View Post
And hope that you haven't maxed out on key replacements. I think you can only have 7 replacements per vehicle? My buddy lost his E39 key and turns out the PO had already used up all the replacements. According to the dealership, anyways.
so what happens when you use up all the replacements? car go BOOM?
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Old 12-06-2013, 01:35 AM   #13
Lusticles
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so what happens when you use up all the replacements? car go BOOM?
More logically the dealer would require you to replace the entire ignition and locking mechanisms to fit with a new key.
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Old 12-06-2013, 01:42 AM   #14
VishTheFish
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More logically the dealer would require you to replace the entire ignition and locking mechanisms to fit with a new key.
That's insane?! I can't imagine what that would cost at the dealer
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Old 12-06-2013, 09:57 AM   #15
aarondb4
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Lost My Only Key to My E46

Talk to Sean at the BMW Parts Store. I only have one key as well, decided to order a backup. About $130 shipped, just needed my VIN and registration and drivers license to verify ownership.


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Old 12-06-2013, 01:07 PM   #16
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dealer bend over time
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Old 12-06-2013, 03:52 PM   #17
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Originally Posted by umpersav View Post
so what happens when you use up all the replacements? car go BOOM?
The EWS system can only support a total of 10 keys. Depending on what year car you had, some orignal came with 3 keys, some came with 4. I think after 10/2003 it was only 3 as they dropped the plastic Service/Wallet key then.

Once all the EWS slots are used up, you probably need to deal with someone like http://www.rpmmotorsport.net/

They look like they may have some solutions?
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Old 12-06-2013, 11:16 PM   #18
NumbaOneNewb
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Lost My Only Key to My E46

Bah. Get yourself an ews writer like me and then you become the boss of how many keys control your car, not BMW. Technically you can have an infinite amount of keys for your car, only that 10 will start your car because of their designated slots.
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Old 12-06-2013, 11:17 PM   #19
NumbaOneNewb
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Lost My Only Key to My E46

If you lose one, another can take his spot. And no a person who possessed a key to that same spot won't be able to start your car. Once your replacement shares with ews a new random rolling code, the one that key knew would be ancient history
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Old 12-06-2013, 11:51 PM   #20
jayb328i
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At one time I use to order dog tags and clip it onto the key with the phone number and address of a relative on it. That way no one comes to your house to start the car.
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