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BMW Key Replacement Oxford Lost BMW Keys From £220
Lost or spare BMW keys for 1, 3 and 5 Series and X models coded to your car's CAS, FEM or BDC module at the roadside. Comfort Access fobs and Mini keys too.
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Tell us what you need and we will call you straight back. Calling is quickest: 07520 644 595. Photos by WhatsApp: 07466 695655
CAS, FEM and BDC coding
Keys added to the BMW security module that your model and year actually uses.
Comfort Access fobs
BMW keyless entry fobs coded on supported 1, 3, 5 Series and X models.
Mini keys as well
Mini Hatch and Countryman keys use BMW systems, so we can usually help.
Honest dealer advice
If your BMW is dealer only for lost keys, we tell you before you pay a penny.
BMW key replacement in Oxford starts from £220: we come to your 1, 3, 4 or 5 Series, X1, X3 or X5, cut the emergency blade, code a new key to the car’s security module and test it on the spot, usually the same day. The exact price depends on model, year and key type, and we fix it on the phone first.
BMW has used four main key and security systems since the late 1990s, and which one your car has decides how the job is done. Your registration tells us that before we leave. For other makes, see our car key replacement in Oxford page.
EWS, CAS, FEM and BDC: BMW key systems in plain English
Every BMW key talks to a control module that decides whether the car may start. BMW has changed that module several times. The names sound technical, but they matter because each one is coded differently.
| System | Roughly fitted to | What it means for a new key |
|---|---|---|
| EWS | Late 1990s to mid 2000s: E46 3 Series, E39 5 Series, early E53 X5 | Older system; keys usually made by reading the module directly |
| CAS | Mid 2000s to around 2013: E87 1 Series, E90 3 Series, E60 and F10 5 Series, E70 X5, E84 X1, F25 X3 | Spares and most lost key jobs done at the car; some need the module read on the bench |
| FEM | Around 2011 to 2019: F20 1 Series, F30 3 Series, F32 4 Series | Usually done on site with care, as the module also runs body functions |
| BDC | Around 2015 onwards: F48 X1, G20 3 Series, G30 5 Series, G01 X3 and newer | Spares often possible; some all keys lost cases need a BMW dealer |
The changeover years overlap between models and even within a model range after a facelift, so we always confirm by registration rather than by the badge on the boot.
BMW key fob replacement: which shape is yours?
Diamond or oval remote with fixed blade
Found on EWS era cars like the E46 3 Series. A conventional key that turns in the ignition.
Rectangular slot key
The CAS era key on E90 3 Series and E60 5 Series cars that pushes into a dashboard slot, with an emergency blade inside.
Rounded fob with chrome edging
The FEM and early BDC key on F20, F30 and similar cars. You keep it in a pocket or cup holder and press start.
Newer G series fob or Display Key
The current style fob, and on some 5 Series, 7 Series and X models an optional Display Key with a small touchscreen.
A photo of your key on WhatsApp is often enough for us to identify the generation within seconds.
Comfort Access, Display Key and BMW keyless features
Comfort Access is BMW’s keyless entry. Touch the door handle with the fob in your pocket and the car opens; walk away and it locks. Many BMWs with push button start do not have Comfort Access at all, which surprises owners, so the price depends on whether your car was ordered with it.
The Display Key, offered on some higher spec models, shows fuel range and lock status and can run certain remote functions. It is a more expensive key and on some cars only the dealer can supply and code one. If you would be happy with a standard fob as a spare, that is often the practical option and still starts the car.
For a broader explanation of how proximity keys work on different makes, read our guide to smart key replacement.
BMW key not detected? Try this before you call
The most common BMW key call we get is not a lost key at all. It is a fob with a flat or weak battery, which leads to a key not detected message just as you are trying to leave.
On many BMWs you can still start the car by holding the key against the marked spot on the steering column, or in a specific area near the cup holder on some models, which lets the car read the chip directly. Your handbook shows the exact location. Some older BMW keys recharge from the ignition while you drive, so a key that has sat unused in a drawer for months may just need a long drive in the car.
If the battery is fine and the car still refuses the key, the key may need recoding, which our key programming in Oxford service handles.
Mini owners: your key is a BMW key underneath
Since 2001, the Mini has been built by BMW and shares its electronic security. The round key of the R56 era Mini Hatch slots into the dash in the same way as a CAS BMW key, and the later F56 Hatch and F60 Countryman use FEM and BDC family systems. If you have a Mini in Oxford, where the cars are built at the Cowley plant, we can usually help on the same basis as a BMW. Call with the registration and we will confirm the price, or read the details by model on our Mini key replacement page.
When does a lost BMW key need the dealer?
Straight answer first
Spare keys on most BMWs, and lost keys on most CAS and FEM era cars, can usually be done at the car. Some newer BDC era models with every key lost may need BMW’s own systems, and certain Display Keys are dealer only. We check before travelling, every time.
A dealer has full access to factory systems for every model and year. In exchange, you typically order the key against your vehicle number, wait for delivery and get the car to the dealership, by recovery truck if there is no working key. A mobile locksmith works at the car and is often faster for supported models. Both are reasonable choices; the right one depends on your car.
If you own a second German car, our Audi key replacement and Mercedes key replacement pages explain how those brands compare.
How a BMW key replacement job runs
Identify the system
From your registration we confirm EWS, CAS, FEM or BDC and the key type, then give you a fixed price.
Check documents
V5C logbook or finance or lease paperwork, plus photo ID. No BMW key is coded without both.
Read and code
We connect to the car, and on some CAS cars briefly remove the module, to add the new key and delete any lost ones.
Test and hand over
Start, locking, boot and Comfort Access tested. You get an itemised invoice.
If you are locked out with the fob still inside, our keys locked in car service gets you in first. A child or vulnerable adult inside is a 999 call before anything else.
BMW key replacement prices
BMW sits in our premium band and the exact price is set by model and year before we travel.
| Service | Price | What's included |
|---|---|---|
| BMW spare or replacement key | From £220 | Exact price by model and year |
| Programming only | £55 to £95 | Coding a BMW key you supply |
| Emergency blade cut | £35 to £55 | Mechanical door blade, no chip |
| Car lockout, nights and weekends | From £130 | Daytime from £85 |
| Ignition repair | £155 to £245 + parts | Worn ignition or slot faults |
Prices include VAT and labour. Parts are listed separately. See the full Oxford locksmith price list.
