Refurbished MS43 with EWS Delete

MS43 DME Plug & Play Kit – EWS Delete for BMW E46 / E39 (M54 3.0L)

This is a fully plug-and-play solution for BMWs running the M54B30 engine with the MS43 DME, commonly found in:

E46 3 Series
E39 5 Series

E53 X5

The EWS (immobilizer) system is fully deleted, allowing you to start the car with any standard key that can turn the ignition — no chip or programming required.

What’s Included:

• MS43 DME – Factory Reset (Virginized) + EWS Deleted

• EWS Delete Module – Replaces your original EWS module and plugs directly into the EWS wiring harness

This module is required to fully eliminate the EWS system — it works even if your original EWS module is faulty or missing.

How It Works:

• The DME has been virginized, meaning it will automatically adapt to your car’s hardware on first startup.

• It learns systems such as:

  • Pre/post-cat O2 sensors

  • Secondary air pump

  • Coil pack type

  • Transmission type

  • A/C presence

• If a system isn’t present at startup, it will be ignored and disabled automatically.

Additional Info:

• Tested and guaranteed functional

• All adaptations reset

• Works with most E46 E39 and E53 models with the M54 3.0L engine

VIN Coding:

To ensure the DME is properly matched to your car, please include your VIN at checkout so we can pre-code it.

Already Have a DME?

Want to keep your original DME? I also offer EWS delete services for your existing unit. Check my other listings or send a message for details.

Questions?

Don’t hesitate to reach out — I’m happy to confirm compatibility or help with any setup questions.