Keys

Andy said:
TH3R4POR said:
Andy said:
Not sure if that would trigger the alarm but eventually you'd get it going.
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No it wouldn't trigger the alarm, it's fine to use the key in the door and the ignition, it's why it has keyholes ;)
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Lots of older BMWs used to be: if it's locked with the remote, it needs to be unlocked with it too. If it's locked with the key it's fine.
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not in a Z4 ;)
 
Handy to know the key can be coded easily.

I'm thinking of buying a casing and new battery to "refurbish" my key.

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220577641061
 
Handy to know the key can be coded easily.

I'm thinking of buying a casing and new battery to "refurbish" my key.

e278_35.jpg

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=220577641061
 
Of course if you use your own internals you won't need any coding. If you use another keys internals, then you need to switch the transponder over.

Where can you get the key cut? When I asked nobody could do it, so I rebuilt one of my own keys.

The battery is soldered in, but with a bit if deft work you should be able to break the spot welds off and fix the new one in, although unless you have problems with the battery I can't see why bother. Changing the case I can see as they do wear out.
 
The battery works, but I want to see if changing improves range/length of time it holds a charge. I'm not expecting it to but replacing the worn case will be consolation.

Will just re-use the blade by the looks of it.
 
BMW Z4 - Key Remote Programming

Three methods to try:

Method 1:
1) Working from within the vehicle and with the doors shut
2) Turn ignition to position 1 and back to off within 5 seconds.
3) Remove the key from ignition and press and hold the unlock button for 15 seconds during this time press the key lock button 3 times within 5 seconds.
4) Release both buttons.
5) Doors will lock and unlock to show correct programming has occurred.


Method 2:
To do this procedure you need to have one working key and one key that needs to be programmed.
1) Get in and close all doors.
2) Turn on the ignition and turn off quickly. (No more than 5 seconds) to start the process. Next action must take place within 30 seconds.
3) Remove the 1st key.
4) Hold the key up near your left shoulder (this is so it is closer to the remote receiver antenna.
5) Hold down the unlock button and press the lock button 3 times. Release the unlock button and the doors lock which confirms the operation.
6) Quickly repeat steps 4 & 5 for key #2 etc.

If it does not work, try doing the keys in opposite order. Key 2 then key 1, vs 1 then 2.


Method 3:
Alternate if you do not have a working remote
1) Turn key to position 1 five times very quickly
2) Remove key
3) Hold unlock button then press lock button 3 times, release unlock button.
4) If you have another key do the same button pressing within 30 seconds
5) Turn on ignition to finalise.
PLEASE NOTE: This programming procedure programs the remote control part of the key. Any transponder chip for the immobiliser (starting of car) will not be programmed and must be done by a specialist.
 
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