
BMW Car Key Replacement & Programming
Mobile BMW spare keys, lost key replacement and transponder programming — completed on-site at your home or workplace across Oxfordshire and surrounding counties.
BMW Spare Car Keys
A spare BMW key is more than convenience — it's a safeguard against one of the most expensive scenarios a BMW owner can face. Modern BMWs use encrypted immobiliser systems that make key replacement significantly more complex than on older vehicles. If your only key is lost or fails, an all-keys-lost callout costs considerably more than having a spare made in advance.
KEYLOGIK supplies, cuts and programmes spare BMW keys on-site at your home or workplace. We carry a range of BMW-compatible key blanks and transponder chips in the van, and most spare key jobs are completed in a single visit without your vehicle needing to go anywhere.
Lost All BMW Keys?
If you've lost all keys to your BMW, the situation requires specialist equipment and expertise. BMW's immobiliser systems are among the most secure on the road — but they can be worked with when you have the right tools and training.
KEYLOGIK can create new keys from scratch at your location using your vehicle's VIN and on-board diagnostics. There's no need to arrange vehicle recovery to a main dealer — we bring everything needed to cut and programme a replacement key to where your BMW is parked.
If you've lost all your BMW keys, see our all-keys-lost service or contact us for a clear, upfront quote.
BMW CAS Immobiliser Programming
From around 2004 onwards, BMW introduced the CAS (Car Access System) module to manage key recognition, immobiliser and central locking. CAS modules come in several generations — CAS1 through CAS4+ — and each requires specific programming approaches.
KEYLOGIK has experience working with CAS systems across a range of BMW models, programming spare and replacement keys on-site using dealer-level diagnostic equipment. We code the transponder to the immobiliser and configure remote central locking functions so your key works as it should.
BMW FEM & BDC Bench Programming
Newer BMWs (F-series and later) moved immobiliser and body electronics functions into the FEM (Footwell Electronics Module) and later the BDC (Body Domain Controller). On some of these vehicles, adding a spare key requires removing the module and performing bench work — connecting directly to the circuit board to extract the security data needed to programme a new key.
This is specialist work that KEYLOGIK carries out regularly. See our BMW M140i spare key job in Abingdon for a real example of FEM bench unlock, data extraction and key programming — all completed on-site.
Remote & Transponder Programming
BMW keys aren't just mechanical — each key contains an encrypted transponder chip that must be coded to the vehicle's immobiliser, and many also carry remote central locking, keyless entry and comfort access functions.
KEYLOGIK programmes transponder keys, remote fobs and smart proximity keys for compatible BMWs, coding all functions so your key works exactly as it should — starting the engine, locking and unlocking remotely, and operating keyless entry where fitted.
For more about our programming capabilities across all vehicle makes, see our key programming service page.
Mobile BMW Key Service
Every BMW key job KEYLOGIK undertakes is completed at your location — at home, at work, or at the roadside. There's no need to arrange vehicle recovery to a main dealer.
We bring the key blanks, cutting equipment, diagnostic tools and bench programming hardware to you, so your BMW stays exactly where it is and you're back on the road the same day.
No towing to a dealer
Keys cut & programmed on-site
Specialist bench equipment
BMW Jobs We've Completed
A BMW E46 spare key job requiring specialist bench work — the EWS immobiliser module was removed from behind the dashboard and the security data read directly from the EEPROM chip. Watch the full procedure on the dedicated case-study page.

A BMW M140i spare key requiring FEM module removal and bench unlock via SOIC8 adapter to extract immobiliser data. The supplied key works with full keyless entry, keyless start and remote central locking — all verified on-site.

Need a BMW Car Key?
Call or WhatsApp KEYLOGIK for a clear, upfront quote before any work begins.