How to clean or replace EGR valve for N47 engine, and clear all engine faults.

Cleaning EGR valve, Bleeding cooling circuit, clearing errors in DDE module and resetting emission adaptations. for BMW 3 series F30 N47 engine.
Regaining lost power, and improving fuel consumption, and having a continuous smooth power output at high way speeds.
• How EGR valve works, a... shows a more detailed way of cleaning the valve