This service is designed for BMW vehicles equipped with MS42, MS43, and MS45 DME/ECUs to disable the EWS immobilizer system. By removing the immobilizer function, your vehicle can start and run without interference from the EWS system. This service is ideal for fixing immobilizer-related faults, replacing faulty DMEs, or creating spare DMEs for race or off-road applications.

How Our Service Works

1. Ship your DME/ECU to our facility.

2. We disable the EWS immobilizer function within the DME.

3. Your DME is returned ready for plug-and-play installation.

When to Use This Service

• Vehicle will not start due to an EWS immobilizer fault.

• Replacing a faulty DME that cannot be cloned due to water damage or corruption.

• Installing a used DME without dealership programming or synchronization.

• Creating a spare DME for racing or specialty applications.

What This Service Does

• Disables the EWS immobilizer function in the DME/ECU.

• Allows the vehicle to start and run without EWS system interference.

• Provides a reliable plug-and-play solution for immobilizer-related issues.

Important Notes

• After the service, an OBD code related to the immobilizer may be present, but it will not trigger the check engine light.

• Clear all OBD codes after installation to ensure proper functionality.

Supported Models

MS42

• BMW 323i / 328i (E46): 1999–2000

• BMW 523i / 528i (E39): 1999–2000

• BMW Z3: 1999–2000 (2.8L)

MS43

• BMW 325i / 330i (E46): 2001–2002

• BMW 525i / 530i (E39): 2001–2002

• BMW X5 (E53): 2001–2003 (3.0L)

MS45

• BMW 325i / 330i (E46): 2003–2005

• BMW X3 (E83): 2004–2006 (3.0L)

FAQ

What is this service for?
This service disables the EWS immobilizer system in the DME, allowing the vehicle to start and run without immobilizer-related issues.

Will my vehicle need additional programming after this service?
No. Once installed, the DME will function as plug-and-play.

Will the immobilizer light remain on?
In some cases, an immobilizer-related OBD code may remain stored, but it will not illuminate the check engine light.

Who pays for shipping?
You pay shipping to us; return shipping is covered.

Don’t see your vehicle listed?
Send us a message with your DME part number and vehicle details for compatibility verification.