Shop Audi A6 Tank. 2.0 LITER. 2012-15, MAIN. 2016-18, MAIN. 3.0 LITER DIESEL. 3.0 LITER GAS, MAIN. 4.0 MAIN, LITER, DIESEL - OEM Audi Part # 4G0121403AC (4G0-121-403-AC, 4G0121403AG, 4G0121403D, 4G0121403G)

Fits A6 (2012 - 2018)

2.0 LITER. 2012-15, MAIN. 2016-18, MAIN. 3.0 LITER DIESEL. 3.0 LITER GAS, MAIN. 4.0 LITER, MAIN. DIESEL. DIESEL, MAIN. GAS, MAIN. W/O RS7, MAIN. W/RS7, MAIN.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your Audi A6 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.