How to Disable Mercedes Speed Limit Vmax by Vediamo

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How to Disable Mercedes Speed Limit Vmax by Vediamo

Unlock the Mercedes Benz factory top speed limit which is 250km/h. Which program can I use to unlock it? and how to remove the speed limit set by the factory.System program requiredMB Star DAS/XENRTY: NoVediamo: YesDTS Monaco: YesYou could do them offline using Vediamo or Monaco but from experience, you are better off with MB SD Connect C4 or C6 VCI multiplexers to use those software. Meanwhile, you will need a special CBf/Vsb/SMR file or seed key calculated to get the required access to the ECU and CPC. Some people can help you with that calculation. Unfortunately, we don’t.In a word, you will need Vediamo or DTS Monaco together with the correct files (VSb w CBF) or regular file with seed key (bought) to gain access for coding with Vediamo GuideHow to change/disable the speed limit (Vmax) on Mercedes with Vediamo?Example on MED40 engine.In Vediamo software, select V EcouteUpload a CBF file that you have saved on your desktopGot the engine module on your carFor example, on this car it is MED40, (unlock me97 will not need calculator )Right-click ECU and go to PropertiesSelect interface,Select ECU – manual command inputWe send the command 27 0BOpen Seed Calculator, We write 4 bytes and get the code to sendPress Generate to generate a key, Copy and paste 4 bytes of the key and paste to vediamo27 0C Write codeSend command againAccess is openGo to Variant codingSelect VCD- VmaxFrom the factory, the car has a limit of 200 km/hWe changed the speed limiter to 250km/h and press ECU codingCoding success. VMAX (Factory Speed Limiter) was changedIf it is an ME97 engine, the procedure is easier and does not require a seed calculator.Select ME97 engineClick sub-options to select “Function”Double-click “DJ_Zugriffsberechtigung”It will show access permissionSelect the “Coding” option from the menu, and then“Variant Coding”Select “lmplicit_Coding_ME97”Now select “Vmax”, and then select the new max speed from the right listFor example on ME97 ECU1.You need t unlock ECU DiagJob–>Zugriffsberechtigung 1 and Zugriffsberechtigung 2(Click to enlarge images)2.Choose Domane “Implizite Kodierung ME97”3. Choose the desired value for Vmax4. Kodieren5. Hard reset

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