This service provides a complete cloning, repair, and data recovery solution for the BMW CAS2, CAS3, and CAS3+ immobilizer modules used across a large range of BMW E-series vehicles.

The CAS (Car Access System) module manages:

• Immobilizer/ISN

• Key recognition

• Push-to-start authorization

• EWS security

• Starter enable

• Key slot wake-up

• Remote locking/unlocking

• Communication with DME/DDE, KOMBI, FRM, and gateway modules

CAS modules commonly fail due to:

• Corrupted EEPROM

• No crank / no start

• Water damage

• Faulty solder joints

• Dead MCU or flash corruption

• Failed programming or battery surge

• Keys not recognized

• No communication (diagnostic tools cannot read CAS)

Using professional BDM-style bench programming tools, we can fully:

1. Clone your CAS module

Transfer:

• EEPROM

• FLASH

• ISN (immobilizer code)

• VIN

• Key data

• Rolling codes

• Vehicle configuration

2. Repair corrupted CAS units

We rebuild the EEPROM structure, restore authentication data, and fix “no communication” conditions.

3. Transfer CAS data to a replacement module

Your replacement CAS2/CAS3/CAS3+ becomes a true plug-and-play unit with no dealer coding required.

⭐ SUPPORTED BMW MODELS

CAS2 (E-Series Early Models)

• E60/E61 5-Series

• E63/E64 6-Series

• E65/E66 7-Series

• E83 X3

• E85/E86 Z4

CAS3 (Mainstream E-Series)

• E90/E91/E92/E93 3-Series

• E81/E82/E87/E88 1-Series

• E70 X5

• E71 X6

• E84 X1

• E60/E61 LCI

• E63/E64 LCI

CAS3+ (Encrypted, Newer Models)

Used in later E-series vehicles with updated encryption and rolling codes:

• Late E90/E92/E93

• E70/E71

• Late E60/E61

• Late 1-Series

MINI R-Series (where applicable)

Some versions of R55–R61 use CAS3/CAS3+ style systems depending on year.

WHAT YOU NEED TO SEND

• Original CAS module (CAS2, CAS3, or CAS3+)

• Replacement module (if cloning to a donor)

• Any working keys (optional but recommended)

• Note including:

  • Name

  • Phone number

  • Return address

  • Vehicle year/make/model

WHAT’S INCLUDED

• EEPROM + FLASH cloning

• ISN synchronization

• VIN and coding transfer

• Key data transfer

• Corrupted CAS repair

• No communication fix

• Bench verification

• Final plug-and-play setup

TURNAROUND TIME

• Same-day or 1–2 business days

• Rush service available