Launch X431 PRO 3 user guide: Throttle Adaptation on Mercedes W212 the 2014 year
Here, credits to all @cardiagtool.co.uk working for the test
Check connection
Run Launch X431 PRO 3 application
Select Europe, then Mercedes
Launch X431 PRO3 has Mercedes 48.20 software
This program diagnoses Mercedes electronic control systems, including power, chassis, body, info, seat & door,A/C, etc.
Select Automatically search
Check VIN
Read VIN code
Select System selection
ECM- Engine control module (MED40) for combustion engine M274 (N3/10)
Switch on ignition
Select Special function
Tech-in processes
Tech-in of throttle value stop
Check the engine status, accelerate pedal position, coolant temperature, and throttle
Intake temperature reach the specified values
Select F3, start tech-in process
Wait for 60 minutes, then the learning process is complete
The tech-in process was completed successfully
Job’s done!
Ps. Launch X431 Pro also is tested on W212.. no issues