is a process that aims to restore the full efficiency of a turbocharger equipped with this type of valve. Here are some key steps involved in regeneration:

1. Disassembly: the first step is to remove the turbocharger from the engine. This allows a thorough examination of the VTG valve and other components.
2. Cleaning: The VTG valve is often subject to the deposition of contaminants such as soot, oil or other particles. A thorough cleaning is carried out during the regeneration of the valve. This may include ultrasonic washing, sandblasting or other methods.
3. Replacement of damaged components: If the VTG valve is damaged, it is necessary to repair or replace it. Seals, bearings and other components are also often replaced.
4. Geometry check: After the VTG valve is cleaned and repaired, if any, its geometry is checked. This is important to ensure proper operation of the turbocharger.
5. Assembly and calibration: after a thorough inspection and repair of the VTG valve, the turbocharger is mounted back on the engine. Calibration is then carried out to adjust the operation of the valve to the parameters of the engine.
6. Testing: The final step is to run tests to make sure the turbocharger is working properly and delivering the right amount of air to the engine.