/ BMW Key Services: Replacement, Programming, and Diagnostics
Professional BMW key diagnostics, replacement, and programming — including CAS, FEM, and BDC systems.
Lost keys, no-start, Comfort Access or Smart Key issues, or need a spare key? We provide BMW key diagnostics, programming, and module-level solutions with professional tooling and documentation-driven workflows.
BMW Key Systems — What You Should Know
Euro Bimmer:
provide not a generic locksmith service
work with BMW electronic systems, not just keys
handle CAS / FEM / BDC / Comfort Access
Who this service is for
This service is for you if:
You lost one or all BMW keys
The car says “Key not detected”
Comfort Access stopped working
The car does not start even with a key present
You want to add a spare key safely
A dealer quoted replacement but didn’t explain the cause
What we do in-house
BMW key diagnostics and system evaluation
Spare key programming (when applicable)
Comfort Access diagnostics
CAS / FEM / BDC fault analysis
Module coding after approved replacement
What depends on the vehicle
All keys lost scenarios
Encrypted key generations
Dealer-only key code orders
Vehicles with prior improper programming
BMW Key Systems We Work With
CAS (older BMW platforms)
FEM (F-series)
BDC (newer BMW platforms)
Comfort Access antennas and modules
Key frequency, authorization, and immobilizer logic
BMW key systems are security-critical.
We do not attempt unsafe shortcuts or undocumented procedures that may damage control modules or lock the vehicle.
Why BMW Owners Trust Euro Bimmer
At Euro Bimmer, we specialize in BMW electronics and security systems — not just “key cutting.” Our approach is diagnostic first, not guesswork, ensuring that the real cause of your key issue is identified and resolved. We combine dealership-level tooling with independent shop flexibility to deliver:
Full BMW key system evaluation and diagnostics
Expertise with CAS, FEM, BDC, Comfort Access, and Smart Keys
Transparent communication and clear pricing after assessment
No unsafe shortcuts — we safeguard your car’s security systems
Personalized service backed by documented workflows and experience
Ready to Fix Your BMW Key Issue?
Don’t risk further electrical or security problems by guessing the cause.
Contact us for a detailed BMW key diagnostic and clear next steps.
Frequently Asked Questions
Can you make a BMW key when all keys are lost?
Yes, but the process depends on the vehicle platform and its security architecture. Some models require manufacturer key codes or module access. We explain what’s needed after the initial diagnostic — no surprises.
Why doesn’t my BMW detect the key even when it’s present?
“Key not detected” can be caused by low key battery, antenna faults, wiring issues, or module authorization problems. We evaluate all potential causes rather than guessing.
Why can’t you give a price over the phone?
BMW key issues often stem from multiple subsystems. Without scanning and evaluating the vehicle’s fault data, any price quoted over the phone could be inaccurate. We quote only after assessment.
Do you do Comfort Access and Smart Key programming?
Yes — we support smart key features including Comfort Access, but availability depends on the model and existing key inventory.
Is this service better than a locksmith?
Locksmiths may offer mobile key services, but modern BMW key systems (immobilizer, CAS/FEM/BDC, Comfort Access) require diagnostic tools and coding that typical locksmith tools do not provide. Our service focuses on system integrity, security and safety.