How to Remove Benz R300 Speed Limit by X431

This is a pic & text guide on how to use x431 tool to remove Benz R300 speed limit.

Connect X431 to Benz R300,then turn the ignition to “ON” position.

Select “Search Automatically”

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Then the program will show the vehicle information:

VIN:WDCCB5EE2CA143761

Model:251 154 R280/300L

System Configuration Number:00000014

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Select “System Selection”

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Select “ECM—Engine Control Module(ME9.7)”

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Follow the software prompt to turn on the ignition,then tap “Confirm”

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Then select “Hidden/Retrofit”

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Select Max speed limit

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The software will show the current Max speed limit is 240km/h

Tap the “Speed limit”

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Then according to the you want select the speed you want

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Then select “Write coding”

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Select “OK”

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After coding completing,the max speed limitation will change.

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