Description
BMW & MINI EWS / IMMO Off Service — Instant DME & DDE Immobilizer Delete
Free your BMW or MINI ECU from the immobilizer in seconds. Upload your original read, and our automated patcher removes the EWS/IMMO/CAS link, recalculates the checksums for you, and returns a ready-to-flash file — no hex editor, no manual checksum tools, no back-and-forth over email.
Covers the full range of Bosch and Siemens/Continental BMW petrol DMEs plus DDE diesel controllers
When do you need an EWS delete?
- Swapping in a used or replacement DME/DDE from another car
- Engine swaps and project cars without the original EWS or CAS module
- A faulty EWS/CAS module or lost key sync stopping the car from starting
- Bench testing and ECU repair work
What you get
- ✅ EWS/IMMO/CAS removal
- ✅ Automatic checksum correction on every supported ECU – flash back immediately
- ✅ Instant download — patched in seconds, any tool’s read format accepted
- ✅ Secure, private processing — your file is never stored after download
One license = one patch. Upload, download, flash. Done.
Supported ECUs
All files receive automatic checksum correction:
Type Size (KB) Checksum -------------------------------------- ----------- -------- MS41 24 / 256 ✅ MS42 512 ✅ MS43 512 ✅ MS45 + MPC 1024 ✅ ME7.2 512 ✅ ME9.2 (EK924/928) (see here for others) 1024 / 1472 ✅ MSS50 / MSS50.1 32 / 512 ✅ MSS54 / MSS52 32 / 512 ✅ MSS54HP 64 / 1024 ✅ MSS6x (MSS60 / MSS65) 5120 ✅ MSV70 + MPC 2048 / 2560 ✅ MSS70 + MPC 2048 / 2560 ✅ MED17.2.x 1504 – 2560 ✅ MEV17.2.x 2048 / 2560 ✅ ME17 / MED17 / MEV17 / MEVD17 / EDC17 4096 ✅ EDC15C4 512 ✅ EMS2000 512 ✅ MS5150 512 ✅ BMS43 128 ✅ BMS46 256 ✅ EDC16C31 + MPC 1024 ✅ EDC16C35 2048 ✅ EDC16C35 + MPC 2048 ✅ EDC16CP35 + MPC 2048 ✅ +MPC = also needs the internal/MPC file.
Don’t see your ECU listed? Check out our other IMMO off services or Contact us!
How it works
- Purchase a license (one license = one patch).
- Upload the original read from your ECU. Any tool’s read format is accepted.
- Download the patched, checksum-corrected file in seconds.
- Flash the file back to your ECU with your flashing tool.
ECU-specific EWS delete and IMMO off tools
For some ECUs we also offer dedicated tools and services:
- MSD80 / MSD81 / MSV80 / MSD85 IMMO Off (N54, N52N, N43, N63) for Quickflash users
- MS41 / MS42 / MS43 IMMO Off patcher
- M5.2 / M5.2.1 IMMO Off
- ME9.2 IMMO Off for other ME9.2 versions
- EDC16 IMMO Off tool
- MG1 / MD1 IMMO Off
FAQ
What is EWS delete or IMMO off?
EWS (and CAS on later cars) is the immobilizer that pairs the engine computer to the car. EWS delete, also called IMMO off, removes that check from the DME or DDE file, so the ECU starts the engine without needing to match the immobilizer.
Which read tools are supported?
Any tool’s read format is accepted. Supported file sizes for each ECU are listed in the table above.
Is my file stored?
No. Your file is never stored after you download it.
My ECU isn’t listed. What now?
Check the ECU-specific tools above, our other IMMO off services, or contact us.
