Audi A4 1.8T/A6 2.0 Carbon Canister Solenoid Valve 6Q0906517A Original Standard

Audi A4 1.8T and A6 2.0 models specialized charcoal canister purge solenoid valve (OEM 6Q0906517A) mounted in engine bay; connects charcoal canister to intake manifold to control the purge valve and maintain proper air-fuel balance. Installation difficulty: medium; approx 0.5 hours. If idle is unstable, starting is difficult, acceleration surges, or check engine light is on, valve may be stuck or leaking; replace promptly to avoid abnormal fuel tank pressure or emissions exceedance.