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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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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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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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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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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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new fob key with used EWS!

hey guys . I m very much in learning stages in the bmw world. I have a 2005 325i e46 it came without key or EWS unit from car auction . just got fob key from dealer and bought a used EWS unit from and m45.1 engine (same as my) from ebay . the only reason got it used its right price and compared numbers to cars DME and they matched pretty close ..

after installing used EWS unit tried key . key does turn however nothing else happens no start no crank at all , I can see all lights and mileage so I guess it is the right

what are my options from here .

I'm also getting the PA soft and INPA NCsexpert cable set up got those under the advise from another bmw menber
which we are gonna used to reprogrammed ew. I think..

how about bypassing ews for good ! so I can get it started
 
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