Siemens MS42 Immo Off Guide [00110AD, 00110C6, 00110C7, 00110CA]

**sda2** · 17th July, 2019, 10:29 AM

Hi mates,

I recently put some effort into the disassembly of the MS42 and ported the public available EWS delete / Immo Off / Immo delete to other software versions, because there is only junk around at the moment.

YOU NEED THE FULL 512KB BINARY FOR THIS, CALIBRATION OR TUNE FILE WILL NOT WORK!

This modification works for software versions 0110AD, 0110C6, 0110C7 and 0110CA. If the demand is high enough, I can take a look at others as well.

To determine the version you have, open the binary and look at 0x48040, it starts with "ca" and folled by the version string.

No look at the following patches. go to the specified HEX location and replace the original code with the EWSdel.

ca0110AD.DAT
HEX location: 0x26A0C
Original 88 90 88 60 8A 0D 02 80 EA 00
EWS del DA 07 68 28 8E 0D BE 0D DB 00

ca0110C6.DAT
HEX location: 0x283BA
Original 88 90 88 60 8A 0E 02 F0 EA 00
EWSdel DA 07 C8 59 FE 0E 2E 0F DB 00

ca0110C7.DAT
HEX location: 0x283BA
Original 88 90 88 60 8A 0E 02 F0 EA 00
EWSdel DA 07 C8 59 FE 0E 2E 0F DB 00

ca0110CA.DAT
HEX location: 0x283BA
Original 88 90 88 60 8A 0F 02 10 EA 00
EWSdel DA 07 9C 5A 1E 0F 4E 0F DB 00

After editing you have to correct checksums (visit www.ms4x.net for corrector tool) and flash back the file to the ECU.

Bootmode flashing is NOT required. Thanks doesn't hurt if it helped you.

Have fun

**Lambda1** · 17th July, 2019, 11:58 AM

Nailed it ;D.

**sda2** · 17th July, 2019, 02:59 PM

Thanks! Sharing is caring

**Lambda1** · 17th July, 2019, 04:00 PM

True but for ms43 I will care a bit more

.
At moment had my eyes on MS45

**sda2** · 24th July, 2019, 01:03 PM

@Lambda1 MS43 EWS delete is ready as well at least for 430056, 66 & 69. Other versions are also possible

**locksmith383** · 20th August, 2019, 03:59 PM

thanks working on ms42 320i 5wk9034 ca0110CA.DAT

**Lambda1** · 20th August, 2019, 07:35 PM

@Lambda1 MS43 EWS delete is ready as well at least for 430056, 66 & 69. Other versions are also possible

Sure I was one who released 66 or 37 (cant remember) in RR xD. Also got for 55 and 37 ...

... they Iam carring a bit, because all nessecary is released for.

**kismurmi** · 26th August, 2019, 01:31 PM

e46 323i not work eml light and asc light on

**Shmortz** · 26th August, 2019, 06:11 PM

Originally Posted by sda2

@Lambda1 MS43 EWS delete is ready as well at least for 430056, 66 & 69. Other versions are also possible

hello, can you share info for MS43 ver 66, EWS delete?
Thank you!

**Lambda1** · 27th August, 2019, 03:05 PM

e46 323i not work eml light and asc light on

Which Softwareversion you are on?
After did checksum correction. Also beware on some hardware numbers only some of softwarenumbers works

.
Maybe need AD Version.
Read DTC and tell em us about.

hello, can you share info for MS43 ver 66, EWS delete?
Thank you!

Please read... its everything out there... easy to find. 66 and 69 are nearly identical

.

**bonecrusher** · 27th August, 2019, 07:02 PM

does the flash need to be desoldered or can i read boot pinS

**Lambda1** · 27th August, 2019, 07:04 PM

Can be done via fulllread via k-line or via bootpin.

**Shmortz** · 28th August, 2019, 08:55 AM

Originally Posted by Lambda1

Which Softwareversion you are on?
After did checksum correction. Also beware on some hardware numbers only some of softwarenumbers works

.
Maybe need AD Version.
Read DTC and tell em us about.

Please read... its everything out there... easy to find. 66 and 69 are nearly identical

.

I read a lot last night and found version 69, then I patched EWS with tunerpro but it is not fully identical to 66, I don't know what to do because car is far away from here. I know there is people that can do for me EWS delete on my version, but I don't know why they don't want to do this. I allways help people in this forum if I know how...

I will be verry greatfull if someone shere MS430066 patchlist XDF file.

**sda2** · 29th September, 2019, 11:49 PM

I will create a post tomorrow with the code to edit. Send you a PM with patch right now in before.

**bomj911** · 6th November, 2019, 06:36 AM

Can you shear ews delete file for ms43 v37, I have JMgarage ews delete tool but it dose not support V37 or V64 or 69 it sucks for the money you pay for a tool and there is no support from the guy.