spare key charging

[Sticks]

i had this and know the solution. I took my car for it's insp2 a while back at an Indy garage. I happened to mention the spare key had stopped working. he took the key, pressed the buttons in some kind of 'special' sequence and then it worked perfectly.

maybe once it's totally flat it needs this method to sync it again. not only did he make it look simple he never charged me either. not sure a main stealer would do the same for free?

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Yes, that works, as here

Hi Guys. Sorry for the late response. I think Gannet has sent the right link. Which gives the same information as this one - http://www.programyourkeys.com/BMW_Z4_Key_Remote_Control_Fob_Programming.html

Only lasts for a while on both mine so I'm assuming flat battery. Currently using just one key to see if by constantly using it, it stays working.

 

[GCB]

Copy of guide from the website mentioned.

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.