BMW Immobilizer / CAS / EWS / Key Services
BMW anti-theft runs through EWS on older E-series (E36 / E39 / E46 / E53), CAS (Car Access System, CAS 1 / 2 / 3 / 3+ / 4 / 4+) on E60-F30 era cars, and FEM / BDC on newer F / G chassis. We perform CAS clone (CAS 3, CAS 3+, CAS 4, CAS 4+ — covering BMW and MINI), CAS programming, key virginize / renew / unlock, and combined CAS + Cluster mileage services.
Available Services
Home › BMW › Immobilizer / CAS / EWS What is a BMW CAS Module Clone Service? The BMW CAS (Car Access System) module is a crucial component in the vehicle’s security system. Our CAS module clone service is designed to replicate the data from your old CAS module to a new donor module. This [...]
Home › BMW › Immobilizer / CAS / EWS This is a programming service. We do not sell CAS (Car Access System) modules. Are you experiencing issues with your BMW CAS module? Instead of purchasing a new one, consider our BMW CAS module programming and cloning service. With our expertise, we can clone your damaged [...]
Home › BMW › Immobilizer / CAS / EWS This service is for BMW CAS and cluster programming, reprogramming mileage correction. BOUGHT A USED CAS or CLUSTER wrong miles ? BOUGHT A USED CAS or CLUSTER wrong VIN ? BOUGHT A NEW OR USED CLUSTER AND DEALER TOLD YOU THEY CANT PROGRAM ORIGINAL MILES ? [...]
Home › BMW › Immobilizer / CAS / EWS BMW OR MINI KEY UNLOCK SERVICE RENEW OR VIRGINIZE KEY This service is for BMW or MINI used key renew or virginize. If you have a used BMW key from another car and want to program it to your car and your locksmith is unable [...]
Not Sure Which Service to Choose?
If you are unsure which option matches your BMW module, the safest path is to email or text us photos before ordering: full label of the original module (the one you want serviced), full label of the donor module if you already have one, the part number, hardware revision, and software/calibration sticker, and a photo of the connector pinout if visible. We will confirm whether the service is supported for your specific part number and hardware revision before you order and ship.
Compatibility Warning
CAS service requires correct identification of the CAS generation (CAS 1 / 2 / 3 / 3+ / 4 / 4+). Different generations are not cross-compatible. EWS service requires correct EWS generation (EWS-I / II / III / IV). Send us photos of the module label before purchasing a donor.
What to Ship
- Your original BMW module (the failed/locked unit), clearly marked “ORIGINAL”
- If applicable: a donor module, clearly marked “DONOR” — same part number family and hardware revision as the original
- Your order receipt printed, or order number written on a slip in the box
- Your return shipping address
- Ship to the address shown on your order receipt at checkout (we operate from 2 locations and route based on tool availability and turnaround)
Related BMW Services
- BMW ECU / DME / DDE Services
- BMW ECU Clone Service
- BMW ECU VIN Programming
- BMW ECU IMMO Off
- BMW FRM / LCM (Light Module) Services
- BMW BCM / BDC / FEM / Fusebox Services
- All BMW services
FAQ
What is the difference between CAS, EWS, and FEM / BDC? EWS (Electronic Immobilizer) is the older system on E36 / E39 / E46. CAS (Car Access System) is the keyless-go-era system on E60 through F30. FEM / BDC are the F / G-series replacements that combine immobilizer with body control.
What does the key unlock / virginize service do? Resets a used BMW key so it can be re-coded to a different car, or renews a locked key for re-programming. Required when buying used keys for cloning or restocking spares.
What does the CAS + Cluster combo do? Synchronizes the mileage stored in CAS and the cluster so they agree. Required after cluster replacement, CAS replacement, or mileage tampering work.