Audi Q7 (2007 - 2015) - Fuel & Intake - Fuel System - Fuel Fuel System for Audi Q7 (2007 - 2015): Fuel Filters, Fuel Hoses, Fuel Lines. Porsche / BMW / Mercedes; Audi; Volkswagen / Saab / Volvo When fuel filters get clogged, they can cause all sorts of problems, including clogged injectors, and contaminated fuel lines. Many times changing a fuel filter can make an old car run like new. 2007 Audi Q7 Replacement Fuel Filters – CARiD Audi Q7 2007, Fuel Filter Seal by Vaico®. 135mm OD/114mm ID - FPM (Fluoride Rubber) Sealing Ring. Quality results from the consistent pursuit of an customer-focused strategy.