Has anyone used these devices to mod their cpu, or anything ?
Here's a link:
http://www.obd2works.com/best-mb-carsoft-74-multiplexer-p-1931.html

MCU controlled Interface for Mercedes Benz Carsoft 7.4 which is compatible with the original interface.
Adapter cable for the Sprinter is available also and need to be purchased seperately if needed.
Petrol Engines : ENGINE - TYPES until April 2004 Additional Features: - ME LIVE DATA, ME CODING, ME ADAPTATION Vehicle Types: - W124 / W202 / W140 / R129 / W210 / W208 / R170 / W209 / W203 / W163 / W168 / W220 / W215 / R230 / G461 / G463 / Vito / V-Class / Sprinter
The MB Carsoft 7.4 is a brand new comtrolled interface, it can read/erase all fault codes and ecu information. The device can spport all MB car models up to the year 2004, including both personal, off-road and commercial vehicles.
Sine the MB Carsoft 7.4 software is carcked, so you need to carefully follow below software installation instruciton for making sure the MB Carsoft working properly.
MB Carsoft V7.4 software installation procedure:
Step 1: Copy the whole Carsoft_MB74 File folder from the software driver CD to your hard-disk driver D or other hard driver. It is more stable and reliable to install the MB Carsoft software from hard-disk directly.
Step 2: In the hard-disk driver where you pasted the whole Carsoft_MB74 software, please open the File folder of Carsoft_MB74, then open the file holder of “Step1_MB74_Installer”, double click “SETUP CAR SOFT.exe” to run the MB Carsoft software installation part 1.
Step 3: The MB Carsoft software installation proceeds automatically, click “Next” button for software installation when you see the MB Carsoft V7.4 Welcome surface.
Step 4: The MB Carsoft software installation asking about Software License Agreement, click “Yes” buttom to proceed the MB Carsoft V7.4 software installation. -
Step 5: The MB Carsoft software installation asking about directory in your hard-disk, you can change the directory or keep the default directory “C:\Program Files\CARSOFT\MB as it is, then click “Next” button to proceed the MB Carsoft V7.4 software installation.
For more obd2 tool and get more infomation about this product please visit http://www.obd2works.com/