Buy Audi A3 Cap. Reservoir. Coolant. Engine Coolant Expansion Tank - Repair or Replace A failed Aux, DHHA, CNTC, CZRA - OEM Audi Part # 2Q0121321A (2Q0-121-321-A, 2Q0121321)

A cover that prevents foreign debris from entering the container. Cap for the Hybrid Inverter Coolant Reservoir. From 03/13/2017. From 05/26/2017. From 11/27/2017. Includes: Expansion Tank Cap Seal. Includes: Seal. Includes: Seal. Location-Reservoir. Radiator Cap. To 11/26/2017. Cover. Drive Motor Inverter. Engine. Radiator. Included with: Reservoir.

Radiator CapEngine Coolant Reservoir CapDrive Motor Inverter Coolant Reservoir Cap

Fits A3 (2015 - 2024)

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your Audi A3 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.