Audi Diesel Exhaust Fluid Tank / Def Reservoir (Active) (Q7) Price Drop

Description

The Diesel Exhaust Fluid Tank (DEF Reservoir) plays a crucial role in the emissions system of your Audi Q7, ensuring compliance with environmental standards. Located beneath the rear section of the vehicle, this reservoir stores the DEF used for selective catalytic reduction (SCR) processes, reducing harmful nitrogen oxide (NOx) emissions from the engine.Compatible with 2010-2012 Audi Q7 models featuring 3.0L V6 Diesel and Gas engines, this OEM part, with part number 4L0131878G and alternatives such as 4L0131878F and 4L0131880C, is essential for proper functionality. Common issues include leaks, clogs, or tank damage that can result in warning lights or reduced engine performance. Trust authentic OEM parts to maintain your vehicle’s integrity and emissions compliance.