Buy 2012 Volkswagen Passat Engine Coolant Reservoir. Engine Coolant Expansion Tank - Repair or Replace LITER, Tank, Cooling - OEM Volkswagen Part # 1K0121407F (1K0-121-407-F, 1K0121407A)

Reservoir. Tank. Engine Coolant. Expansion.
A container that holds Engine Coolant.

Engine Coolant Reservoir

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2012 Volkswagen Passat to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.