Where is the water drain located at the bottom of a sedan?
2 Answers
Vehicle radiator drain bolt (valve) is generally located on the inner side at the bottom of the radiator. Below is relevant information about the radiator: 1. Concept: The car radiator, also known as the heat exchanger, is a key component in the vehicle's cooling system. Its function is to dissipate heat - coolant absorbs heat in the water jacket, flows to the radiator to release heat, then returns to the water jacket to circulate, achieving temperature regulation. It's an integral part of the automobile engine. 2. Working principle: The radiator is a crucial component for water-cooled engines. As a vital part of the water-cooled engine's cooling circuit, it absorbs heat from the cylinder block to prevent engine overheating. Since water has relatively high specific heat capacity, its temperature doesn't rise significantly after absorbing the cylinder block's heat, thus the engine's heat is transferred through this liquid cooling circuit.
Last time I washed my car myself, I noticed the passenger side carpet was always wet. After struggling for a while, I finally figured out it was because the sunroof drain hole was clogged. Generally, passenger cars have several main drainage locations: the sunroof drain tube outlets at all four corners are usually at the very bottom of the A-pillar or C-pillar, the drainage channel under the front windshield is hidden behind the hood hinges, crescent-shaped drain holes are concealed in the rubber seals at the bottom of all four doors, there are small holes in the fuel filler cap, and the AC drain tube is typically located near the passenger side chassis. Special attention should be paid to the sunroof drain tubes as their outlets are particularly small and prone to accumulating leaves and mud. During last year's rainy season, my neighbor's car got flooded and had to have its seats removed to dry for three days - all because the door panel drain holes were completely clogged with tree sap. It's best to check these areas regularly during car washes, especially the AC drain hole. If clogged, it won't just wet the carpet but also cause musty odors.
