Shop 2018 Audi A5 Engine Coolant Reservoir Cap. RADIATOR CAP. Engine Coolant Expansion Tank - Repair Sportback - OEM Audi Part # 4M0121321Q (4M0-121-321-Q, 4M0121321J, 4M0121321K)

A cover that prevents foreign debris from entering the container. From 06/15/2020. From 06/22/2020. From 11/21/2016. Location-Reservoir. Radiator Cap. To 06/15/2020. To 06/22/2020. To 11/21/2016. Included with: Reservoir, Reservoir tank.

Radiator CapEngine Coolant Reservoir Cap

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.