Replacement Key

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LT118d
BMW Enthusiast
Posts: 41
Joined: 02 May 2016, 13:01
Car model: 118d M Sport
Location: Staffordshire

Replacement Key

Post by LT118d » 11 Dec 2016, 07:53

Hi,

My car only has one key and I was just wondering what was the best way in getting a new one. There are loads of keys on eBay but can they be reprogrammed if their already programmed to one car? Or is it best just to go to bmw themselves?

Thank you

Maxwell
BMW Enthusiast
Posts: 1422
Joined: 24 Aug 2014, 19:07
Car model: F13 M6
E53 3.0d
Location: Swindon

Re: Replacement Key

Post by Maxwell » 11 Dec 2016, 09:16

Keys are coded to VIN and one that has already been coded cannot be recoded as the security chip inside is a write once device, having said that it is possible to replace the chip to create a blank key but you would need to be able to read the security info from a working key and code it to the blank key, once that is done the key can be coded to the car. (This is what professional thieves do).
You would need to source the chip and you would need a specific key programmer (£500-600) as well as being able to read the security data from your working key.
Lots of work and very expensive for a one off and not easy.
Just order one from BMW and you get a blank key coded to your VIN, once you have it it needs coding to the car but it is a very simple procedure that is done via the ignition slot.

LT118d
BMW Enthusiast
Posts: 41
Joined: 02 May 2016, 13:01
Car model: 118d M Sport
Location: Staffordshire

Re: Replacement Key

Post by LT118d » 11 Dec 2016, 09:59

Thank you for your reply that makes a lot of sense.
Would you happen to know what sort of money it would cost me from BMW for the key and to have it programmed?

Maxwell
BMW Enthusiast
Posts: 1422
Joined: 24 Aug 2014, 19:07
Car model: F13 M6
E53 3.0d
Location: Swindon

Re: Replacement Key

Post by Maxwell » 11 Dec 2016, 10:22

Think it was about £150 last time I got one, the coding of the new key to the car you can do yourself as programmers etc are not needed and its a very simple procedure.
Best if you ask Elms for a price in this section of the forum http://www.bmwenthusiasts.co.uk/forum/v ... .php?f=141" onclick="window.open(this.href);return false;

LT118d
BMW Enthusiast
Posts: 41
Joined: 02 May 2016, 13:01
Car model: 118d M Sport
Location: Staffordshire

Re: Replacement Key

Post by LT118d » 11 Dec 2016, 11:11

Cheers, I will look into it

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