Open your official WinOLS software. Ensure your tuning laptop has an active internet connection. Navigate to the configuration menu to verify your registration details. Step 2: Access the Update and Purchase Screen
Modify your target maps (such as driver's wish, torque limiters, or turbo pressure) using your map pack or DAMOS file. Step 3: Trigger the Automatic Checksum Check
Click to prompt WinOLS to scan its internal library for a matching algorithm.
By default, WinOLS installs to: C:\Program Files (x86)\EVC\WinOLS\
: Note that checksums for older WinOLS 4 versions are no longer updated; it is highly recommended to use WinOLS 5 for current vehicle support. Software WinOLS winols checksum plugin download
Supports Siemens SID801, SID803, and early PPD controllers.
Press on your keyboard to open the Checksum properties window.
Log into your EVC account or contact an authorized reseller. Provide your WinOLS license number (e.g., OLLxxxx ) to bind the plugin to your specific software dongle or machine activation. Step 3: Download Directly Within WinOLS
When you import a original binary file ( .bin or .ori ), WinOLS analyzes the structure and attempts to identify the ECU type (e.g., Bosch EDC17, Siemens MSV90, Continental SID208). Open your official WinOLS software
Log in to the EVC Customer Area using your customer number. You can purchase plugins directly via PayPal or Credit Card.
Select the identified matching plugin version from the contextual menu and click . 6. Advanced Troubleshooting Guide
Checksums are mathematical algorithms used to verify the integrity of ECU software. In tuning, modifying maps changes the file's data, which "breaks" the checksum. Without correction, the ECU may prevent the car from starting or cause severe performance issues.
Navigate to the top menu and select Help > Check for Updates . Step 2: Access the Update and Purchase Screen
What (hardware) are you using to read and write the files?
Are you using a that can handle checksums during flashing?
It allows you to validate your file modifications offline without needing an active internet connection to a tuning tool server.
Remember: A good tuner is only as good as their checksum tool. Download wisely, install carefully, and tune safely.