BMW Spare Keys, Replacement Keys & CAS3 Key Solutions
Need an additional BMW key? Lost your key or need a replacement for your BMW?
BMWCoding.us provides BMW CAS3 and CAS3+ key programming services for supported BMW vehicles. Whether you need an additional spare key, replacement key, or assistance with a CAS-related issue, we can verify compatibility and available options.
What Is BMW CAS3?
CAS stands for Car Access System.
The CAS module is responsible for:
- Vehicle authorization
- Key recognition
- Immobilizer functions
- Engine start authorization
- Vehicle security
Many popular BMW E-Series vehicles utilize CAS3 or CAS3+ systems.
Programming keys requires specialized BMW equipment and proper key preparation procedures.
BMW CAS3 Key Services
Additional Spare Key Programming
Having a spare key can prevent expensive emergency situations.
Benefits include:
- Backup key security
- Multiple driver convenience
- Replacement for worn keys
- Peace of mind
Replacement Key Solutions
If your key is damaged, lost, or no longer functioning properly, replacement options may be available.
Compatibility depends on:
- Vehicle model
- CAS version
- Number of existing keys
- Vehicle configuration
All Keys Lost Situations
Some all-keys-lost situations may be supported depending on vehicle configuration.
Contact us with your VIN for compatibility verification.
Common Supported Vehicles
Examples include:
- E90 3 Series
- E91 Touring
- E92 Coupe
- E93 Convertible
- E60 5 Series
- E61 Touring
- E70 X5
- E71 X6
- E82 1 Series
- E88 Convertible
- Additional CAS3-equipped BMW vehicles
VIN verification is always required.
Why Choose BMWCoding.us?
BMW Specialists
BMWCoding.us specializes in BMW:
- Key programming
- ECU cloning
- Coding
- Diagnostics
- Programming
- Performance tuning
Professional Equipment
Professional BMW programming equipment is used to support CAS3 and CAS3+ applications.
Honest Compatibility Verification
Before scheduling service we verify:
- Full VIN
- CAS version
- Vehicle compatibility
- Key requirements
Frequently Asked Questions
Can you add a spare key?
Yes, many CAS3-equipped BMW vehicles can have additional keys programmed.
VIN verification is required before service.
Can you help if I lost all my keys?
Some all-keys-lost situations can be supported depending on vehicle configuration.
Contact us for verification.
Can I buy a key online?
Compatibility depends on the key and vehicle configuration.
Contact us before purchasing keys from third-party sellers.
How do I know if I have CAS3 or CAS3+?
We can verify the system using your full VIN.
Related BMW Services
- BMW FEM Key Programming
- BMW BDC Key Programming
- BMW ECU & DME Cloning
- BMW Remote Coding
- BMW FRM Repair
- BMW ECU Tuning
Request A Quote
Please include:
- Full VIN
- Vehicle year
- Vehicle model
- Number of working keys
- Description of issue
Text 312-801-5459 with your full VIN, vehicle info, and service needed for a quote.
This allows us to verify compatibility and provide accurate pricing.