The canister purge valve is an important part of the Mercedes-Benz vehicles' Evaporative Emission Control (EVAP) system because it prevents fuel vapours from escaping into the atmosphere by catching and keeping them in a charcoal canister. The EVAP system permits these vapours to be discharged into the motor when it …

You have probably had an interaction with the evaporative emission control (EVAP) system if you've ever left the gas cap loose on a modern car. The EVAP system captures and prevents smog-forming gasoline vapours from entering the atmosphere. Your car's principal computer (also known as the powertrain control module) …