Description
IMMO off / EWS delete patcher for Siemens MS41, MS42 and MS43 DMEs. Load a full BIN read, disable the EWS immobilizer, and flash the patched file back. Ideal for DME swaps, engine swaps and replacement DMEs.
Supported DMEs
| DME | Engine / cars | Supported files |
|---|---|---|
| MS41 | M52 / S52 · E36, E39 | All versions |
| MS42 | M52TU · E46, E39 | 512 KB full read: 01100AD, 01100C6, 01100CA |
| MS43 | M54 · E46, E39, E53, E83, E85 | 512 KB full read: all versions |
MS41 IMMO off
Disable EWS on any MS41 BIN file. Read and flash your MS41 through the OBD port with MS41 Quickflash.
MS42 IMMO off
Disable EWS on MS42 512 KB full reads with software versions 01100AD, 01100C6 or 01100CA. Other MS42 versions are not supported.
MS43 IMMO off
Disable EWS on any MS43 512 KB full read, all software versions.
How it works
- Read a full BIN from your DME (512 KB full read for MS42 and MS43).
- Open the file in the EWS IMMO Patcher and disable EWS.
- Flash the patched BIN back to the DME.
FAQ
Which MS42 versions are supported?
01100AD, 01100C6 and 01100CA, from a 512 KB full read.
Can I patch a partial read?
No. MS42 and MS43 need a 512 KB full read.
Can I protect my tune after patching?
Yes. MS41 Read Lock, MS42 Read Lock and MS43 Read Lock lock out OBD reads of your files.
Bench flashing? See the MS41 bench pinout, MS42 bench pinout or MS43 bench pinout for power, ground and communication pins.
Need EWS delete for a different BMW or MINI ECU? See our all-in-one EWS delete & IMMO off service.
