🔑 BMW CAS4 Key Programming – Mail-In Service
This listing is for professional mail-in key programming for BMW vehicles equipped with a CAS4 system.
✅ Add a spare key
✅ All keys lost situations
✅ OEM / compatible smart keys
Programming is done using professional locksmith equipment to ensure reliability and security.


📦 What You Need to Send
Depending on your situation, you may need to send:
CAS4 module
One working key (for adding a key)
Door lock (required for ALL KEYS LOST situations to generate the original mechanical key)


🔑 ALL KEYS LOST – REQUIRED PARTS
If you have lost all keys, you must mail in the following:
CAS4 module
DME (engine computer)
Driver door lock
These components are required to properly synchronize the immobilizer system and generate the original BMW mechanical key.
⚠️ Orders sent without all required components may result in delays, additional charges, or order cancellation.

🚗 Compatible Vehicles (CAS4)
BMW models with CAS4 / CAS4+ systems
Typically 2012–2018 models
BMW SERIES 4
BMW SERIES 5
BMW SERIES 7
(If unsure, message us with your VIN before purchasing)


⏱ Turnaround Time
Programming completed within 1–2 business days after receiving your parts
Return shipping provided


🔒 Secure & Professional
All modules handled securely
Data erased after service
Experienced automotive locksmith service


❗ Important Notes
This is a SERVICE, not a physical key
Buyer is responsible for shipping items to us
No refunds once programming has been completed


📩 Questions?
Message us before purchasing — we’re happy to confirm compatibility and requirements.