DIY via DAS turning off rear 02 and more
 

Follow this thread for how to get into the developers menu

https://mbworld.org/forums/w211-amg/...rough-sds.html

For the V12TT there are the numeric code you have to look out for
Secondary air injection code is 0235
Rear 02 code is 0239
Speed limit deactivation code is 0281

So what your saying is that if I go to code 0281, I can take out my top speed limiter on the car?

R.K.

YES

What is the procedure for that?

R.K.

I will post some pics for you.

This is good stuff but I had to chuckle a little... where are you guys driving this fast you speed demons?

Where everyone else does it; Mexico.

R.K.

This doesn't work on W221 :-(

make sure the engine is running when you make the changes.

Sure, engine was running. But there is no digital codes like 0235, 0239 at all. Only text menus like "Vmax", "ASR" etc.

can you post a pic of the screen shot of the read ECU coding screen

how do you find out which # relates to what?

what is Secondary air injection ?


shardul can you post pictures of the process ( speed limiter delete )

my car only goes to 250km

i wanna go 300+ km :D

emission requirements

will take some pics the nect time I hook the car up to DAS

What is a DAS?

Diagnostic Assistance System. Often referred to as Star Diagnostic. An external computer running software that communicates with the vehicles inboard computers.
Cheers,
Jeff

I asked this in another post but so will the china scan tools be able to do this? I want to do this but can afford an oem scan tool.

Frankly, you get what you pay for, even from the China clones. They are cheap, in more ways than one. I've read some real horror stories about 'em. And they'll loaded with viruses. The viruses don't affect the car, but if you want to transfer data via a thumb drive...

If you want a DAS unit, that is complete and works out if the box, contact Shardul (first post). And he's in the US.

Cheers,
Jeff

I pmed him and never got response. How do you get a hold of him?

STAR in NH/MA
 

I know this is a old/long going thread, but does anyone in NH/MA have SDS who would be willing to help out with a rear O-2 delete, lowering and a few other small changes??