Key help

[Rucky]

New Blade case and repair carried out in 2018 - still going strong. Refurb like new.
https://www.themasterlocksmith.com/product/bmw-key-repair/

Yes they could probably make a copy, come to your house and steal your car but so could BMW or anyone else for that matter.

Worked great for me.

 

[bigwinn]

Thanks Rucky- will give them a go

Did you have to reprogram your key when it came back?

 

[Argyll Andy]

Aye ok smart arse

Ah, ok. Im with you
As far as my understanding goes, the function of starting the car is separate and unrelated to the battery charge level or even presence.
Giving it a charge is definitely worth a go though; in the case of the OP a flat battery would stop the key from unlocking and locking the doors.

 

[Rucky]

Thanks Rucky- will give them a go

Did you have to reprogram your key when it came back? No it worked staright out of the envelope.
Maybe call them, It was a quick service I bought a refurb which was a new case and buttons. And a repair which included a new blade cut.

 

[fredej]

Not sure if it helps, but this is what TIS says about remote key initialisation;

Note that it states that initialisation data is not lost even if the rechargeable battery is completely discharged.

Also, Terminal R = Key in Ignition position 1.

Initialise

Function

The initialisation process pairs the key fob transmitters with the basic module. During initialisation, a code is generated in the key fob transmitter and sent to the basic module. That code is stored on the radio-operated key and the basic module. The basic module uses that code to identify the radio-operated keys that belong to the system. Only from those radio-operated keys are commands executed.

A maximum of 4 radio-operated keys per vehicle can be initialised. If a radio-operated key is re-initialised, the codes of the other radio-operated keys are deleted. In other words, all the radio-operated keys of a system have to be initialised at the same time.

Procedure of initialisation

Initialisation of the radio-operated keys has to be carried out in the vehicle interior.

- Get in the vehicle and close the driver's door and front passenger door.
- Lock and unlock the vehicle via the central locking button.
- Briefly (within 5 seconds max.) switch Terminal R on and off on the vehicle. => The system is ready for initialisation.
- On the key fob transmitter, press and hold the "Unlock" button.
- Point the key fob transmitter towards the aerial and within 10 seconds, while keeping the "Unlock" button pressed, press the "Lock" button three times. => A new code is generated in the radio-operated key.
- Release both buttons. => The basic module indicates that key initialisation has been successfully completed by locking and unlocking the central locking system.
To initialise more radio-operated keys, repeat the procedure from step 3 (= hold down "Unlock" button on the radio-operated key). The status of Terminal R must not be changed.

Switching on Terminal R causes the initialisation process to be aborted.

Note

A non voltage-dependent memory in the key fob transmitter ensures that the initialisation data is not lost even if the standard battery or rechargeable battery is completely discharged.