Tiguan 1.8t Waste Gas Valve Model

Does the subject want to ask "Volkswagen Tiguan 18t waste gas valve model"? Volkswagen Tiguan waste gas valve is equipped with AB and AF, because it is the original factory, with high and low power. When replacing, please pay attention to the letters after the part number. The waste gas valve with the letter AB generally uses an engine with a displacement of 1.8. The exhaust valve with the letter AF uses a 2.0 displacement engine. The waste gas valve with AF can replace the waste gas valve with AB, but the waste gas valve with AB cannot replace the waste gas valve with AF.