
The drain holes are generally located on both sides of the front windshield wipers, with one on each side. The engine compartment is a relatively open environment, so wastewater and debris can flow into it from the windshield. To address this, engineers designed a water deflector at the rear of the engine compartment, along the lower edge of the windshield, and incorporated drain holes in the deflector. Below is some relevant information about the new Santana: 1. Interior: Features include heated seats, side airbags, side curtain airbags, ESP, cruise control, and leather seats. Some manual transmission models also come with automatic air conditioning. 2. Powertrain: The new Santana is equipped with 1.4L and 1.6L EA211 series engines. These engines are available in two displacements, with the 1.4L engine delivering a maximum power of 66kW and the 1.6L engine producing 81kW. Both engines utilize a lighter all-aluminum structure.

Last time it rained heavily, I noticed the passenger side carpet was wet. After a careful inspection, I figured out that the Santana's drainage holes are mainly located in five areas: The water guide channel under the front windshield is prone to leaf accumulation, with rubber drainage holes near the wipers; There are flat drainage holes at the bottom of each of the four doors, covered by seals with openings the size of a fingernail; Each corner of the sunroof hides a 5mm diameter round hole, which can only be found by gently poking with a wire; There's a rubber plug on the right side of the spare tire well in the trunk; There's also a small hole on the inner wall of the fuel filler. When cleaning, it's best to prepare thin wire and an air gun, especially paying attention to the bends in the sunroof drainage pipes which are particularly prone to clogging. After poking, pour a bottle of water to test if it's clear.

I've been driving my old Santana for ten years, and before the rainy season, I always clear the drainage holes: focus on the two oval duckbill valves on both sides of the firewall in the engine compartment; you can feel the soft rubber plugs at the bottom of the four doors with your fingers; the small holes at the rear of the sunroof track have been clogged with dust twice; the design inside the fuel filler flap is also clever, with a downward-sloping drainage outlet. I recommend keeping a takeout bamboo skewer to poke the small holes—it's safer than using a wire. Remember last year when the trunk leaked after the typhoon? It was because the hidden square rubber plug below the trunk latch was clogged with mud and sand.

Novice drivers often overlook the of drainage holes. The Santana's drainage channels include: a duckbill valve hidden under the plastic grille in front of the windshield, with an outlet near the hood release cable; long slits covered by door seals; one outlet with a hose at each corner of the sunroof, with the hoses running inside the A-pillar and C-pillar; a rubber plug at the bottom of the spare tire compartment in the trunk that can be removed to drain water; and the small drainage groove near the fuel tank filler that needs regular cleaning. Last time, a car wash technician taught me to use a syringe to inject water into the sunroof drainage holes and check if water comes out near the wheel arches to determine if they are clogged.

The Santana leaking in the rainy season is mostly caused by clogged drainage holes. Key locations include: the hexagonal water guide box under the windshield in the engine compartment, with removable rubber valves at both ends; the long holes covered by rubber strips at the bottom of the doors; the pinhole-sized holes under the plastic covers at the four corners of the sunroof; the square rubber plugs on both sides of the trunk; and the drainage grooves in the recesses inside the fuel filler cap. Recommended cleaning tools are a high-pressure air gun and plastic pry bars, with special attention to the one-way valve flap at the end of the sunroof drain pipe, which is easily clogged with mud. Last time my car had water seepage in the A-pillar, and upon disassembly, it was found that the front drain pipe was blocked by an insect nest where it exits the engine compartment.

Helped a neighbor repair a waterlogged Santana and summarized the key drainage points: The front drainage holes are located under the black plastic cover beneath the wipers—just pry it open with a key to access them. Each of the four doors has a 10cm-long drainage slit at the bottom. The sunroof's front and rear corners feature funnel-shaped inlets connected to 4mm-diameter hoses. Inside the trunk seal, there are coin-sized rubber plugs. The drainage channel along the fuel filler neck's inner wall often gets clogged with wax residue. It's recommended to clean them quarterly—a bicycle brake cable works best as a tool. After unclogging, test the drainage speed: under normal conditions, 500ml of water should drain completely within three seconds.


