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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 08-15-2012, 01:16 AM   #1
xcar360
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How to Program a BMW E46 Key!

The keyless entry remote for BMW vehicles made between 1999 and 2005 is called the E46 key. All E46 keys require programming before they will work with their respective BMW vehicles. E46 keys are only available through authorized BMW dealerships. Once you receive your new E46 BMW key you can program the key yourself.

1. Get into your BMW, shut the door and put your key in the ignition. Turn the key between the on and off positions five times as quickly as you can.

2. Push the "Unlock" button on your E46 key and hold it down while pushing the lock button three times. At this time your BMW's door locks will lock and unlock, which signals that you've successfully completed the programming process.

3. Finish programming your E46 key remote by turning your BMW on and off. Exit your vehicle and test the key.
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Old 09-04-2014, 02:49 AM   #2
them3fan
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Hi xcar360, if i have an uncut key, and cut it identical to my original key, and follow your programming steps, would it work properly?

thanks.
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Old 09-20-2014, 04:09 PM   #3
323son
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Question Please post reply

I have the same question, re: uncut key.

Them3fan - did you ever find an answer?
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Old 09-27-2014, 07:23 PM   #4
Darkoz
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Quote:
Originally Posted by them3fan View Post
Hi xcar360, if i have an uncut key, and cut it identical to my original key, and follow your programming steps, would it work properly?

thanks.
You'll only be able to manually lock and unlock the doors with a cut key however, the remote will not work and it will not start your car.
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Old 09-30-2014, 01:54 AM   #5
Cazz
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Quote:
Originally Posted by them3fan View Post
Hi xcar360, if i have an uncut key, and cut it identical to my original key, and follow your programming steps, would it work properly?

thanks.
Assuming it has the correct remote frequency (315 MHz for US cars), it will be able to remotely unlock the doors and the alarm. It will not start the car. The EWS transponder and the remote are different circuits.
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Old 10-25-2014, 04:04 PM   #6
Tokapeba
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My key still works in the egnition, but it won't lock or unlock the car remotly. If I buy a keyfob on eBay it won't be able to start the car? I will have to have 2 keyfobs, the one to unlock the car and the one to start the car?

Andy.
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Old 10-26-2014, 02:54 PM   #7
Mattlav
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just wanna help people out but you say "E46 keys are only available through authorized BMW dealerships"

This isnt strictly true.. i have written a guide on this here: http://forum.e46fanatics.com/showthr...012&highlight=

Matt
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