What is the function of the Jetta's small water tank?

[VanSophie]

The functions of the Jetta's small water tank: 1. A small water tank located in the engine compartment, also known as an expansion tank, serves to replenish antifreeze for the radiator; 2. Another small water tank is positioned in front of the blower in the cabin, functioning as a heater core to provide warmth during winter. Jetta is an automobile brand under FAW-Volkswagen Automotive Co., Ltd., a joint venture of the German Volkswagen Group in China, offering 9 models with three engine displacements: 1.4L, 1.5L, and 1.4TSI, paired with 5-speed manual, 6-speed automatic, and 7-speed dual-clutch transmissions. The front face of the Jetta adopts Volkswagen's classic design elements, with a dot-matrix grille defining the family design concept, which not only inherits the essence of Volkswagen's brand design but also effectively blends sporty fashion with modern sophistication.