Will the car's air intake get water in during rain?

[StKeegan]

During rain, the car's air intake will not get water in. The reasons are as follows: 1. High position: The air intake is positioned high, at the upper part of the grille, and normal rain cannot reach such a high water level. 2. Design: The intake pipe is designed with a winding path. In theory, a straight pipe connected to the throttle could improve intake efficiency; however, the design of a curved pipe is intended to prevent rainwater and high-humidity air from entering the combustion chamber. Information about the car's air intake is as follows: 1. Car air intake: Refers to the intake and exhaust ports of the car's engine. The engine's air source is the atmosphere, which enters through the air intake at the front of the car. 2. Function: It introduces fresh air to the engine and provides ventilation and cooling for heat sources that require cooling, such as the air conditioning condenser, radiator, and oil cooler.

[LeRobert]

With years of experience in auto repair, I have an in-depth understanding of car air intakes. Generally, the air intake won't take in water during rainy days because of built-in waterproof measures, such as the angle of the intake manifold and the air filter, which can block rainwater. Under normal rainfall, rainwater is dispersed by the airflow and won't directly enter the engine. However, in heavy storms or deep waterlogged areas—like when the water level rises above the midpoint of the wheels—water may get sucked into the intake, causing hydrostatic lock (hydrolock) damage to the engine, which is costly and time-consuming to repair. I recommend slowing down in the rain and avoiding deep water areas. Additionally, regularly inspect the sealing of the intake system to ensure there are no cracks or blockages, which helps prevent potential issues. When driving in the city, opt for drier routes to minimize risks. In short, while the design is safe, caution is always wise.

[ORiver]

When driving in the rain, I always feel uneasy, worrying about water entering the intake and causing the engine to stall. Light to moderate rain usually isn’t a problem—the intake is positioned high enough that water generally doesn’t flow into the intake pipe. However, if the road has severe standing water, like deep puddles under bridges or in low-lying areas after heavy rain, exceeding half the wheel height, the risk increases significantly. My neighbor’s car was totaled after driving through a deep water-filled pothole. So, during rainy conditions, I control my speed and avoid sudden acceleration; I ensure the windshield wipers are working properly to maintain clear visibility; and if I encounter uncertain water depths, I either detour or stop to assess the situation. Maintaining these safe habits saves both peace of mind and money. Additionally, checking the air filter’s dryness during seasonal maintenance is practical. With strong safety awareness, there’s nothing to worry about.

[DelRobert]

One heavy rainy day, I drove through a puddle, and water entered the air intake, causing the car to stall and get towed for repairs. That lesson was profound: normal rain won't flood the intake, as it has bends to block water. But when standing water exceeds 30 cm deep, reaching above the middle of the car's underbody, suction can draw water into the engine, causing severe damage. Since then, I only drive slowly in the rain and avoid flooded areas. No matter how good the design is, don't force your way through—safety first. Now I share this experience to help others avoid the same pitfall.