How to Deal with a Clogged Sunroof Drain in a Car?

1 Answers
Duarte
07/29/25 9:33pm
There are two methods to deal with a clogged sunroof drain in a car: the air inflation method and using a syringe to inject water. Here are more details: 1. Air Inflation Method: Take an air gun and aim it at the drain holes of the two front drainage pipes inside the sunroof. Use high-pressure airflow to blow through the drainage pipes. Remember to use a cloth to block the airflow to prevent dirty water from splashing onto your body or inside the car. Also, be cautious not to use too strong air pressure, as it may cause the rubber joints and drainage pipes to detach, leading to continued leakage. 2. Using a Syringe to Inject Water: Flushing the drainage pipes with a syringe should help clear the blockage. Practical experience shows that this method is very effective and easy to perform. First, use the syringe to extract water from the sunroof drainage channel to prevent water from flowing into the car.
Was this review help?
1
1
Share
More Forum Discussions

What is the problem if the barrier gate does not lift the bar?

Barrier gate not lifting the bar is caused by issues with the vehicle detector, limit switch, card access permission, or control wiring. Vehicle Detector: Check if the vehicle detector's green light is constantly on. If it is, unplug the vehicle detector and then try the remote control manual switch. If it's not functioning properly, replace the vehicle detector. Limit Switch: Manually rotate the handle clockwise to see if it can still turn. If not, rotate it counterclockwise for two turns and then try the remote control again. If the remote control can lift the bar, it means the limit switch's rotation count is too small. After lowering the bar, rotate the handle on the motor counterclockwise for one and a half turns and adjust the limit switch until the indicator light comes on. Card Access Permission: Swipe the card and observe if the relay on the system control board jumps. If it does not jump, the card has no permission. Reissue the card with the necessary permission. Control Wiring: Check the wiring from the control board to the barrier gate board for the lift line and the vehicle detector wiring. If the wiring is correct, the issue might be that the card has no permission or the control board parameters were not restarted after loading.
20
1
Share

Should the Touran use 92 or 95 octane gasoline?

The Volkswagen Touran 1.4T uses 92 octane, while the 1.8T uses 95 octane. These gasoline grades are recommended in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, the Touran's fuel cap will also indicate the recommended grade. Typically, the gasoline grade can also be determined based on the engine's compression ratio. Vehicles with an engine compression ratio between 8.6-9.9 should use 92 octane, those between 10.0-11.5 should use 95 octane, and those with higher compression ratios should use 98 octane. However, with the use of new technologies, the compression ratio alone cannot determine the gasoline grade, as high compression ratios can also be tuned to use lower octane gasoline. This is because factors such as ignition timing, turbocharging technology, and Atkinson cycle technology also play a role. Generally, the higher the gasoline grade, the higher the octane rating and the better the anti-knock performance. 92 octane gasoline contains 92% isooctane and 8% n-heptane, while 95 octane gasoline contains 95% isooctane and 5% n-heptane. If the wrong gasoline grade is occasionally used in the Volkswagen Touran, simply switch back to the correct grade after the tank is empty. However, long-term use of the wrong gasoline grade can have the following effects: Using a higher octane gasoline in a vehicle designed for lower octane will not cause damage, but the increased octane rating can alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces the engine's power output and thermal efficiency, resulting in poorer performance. Using a lower octane gasoline in a vehicle designed for higher octane can cause engine knocking. The significantly lower octane rating reduces the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug ignites, resistance is created during the upward stroke. This resistance makes the engine run very unstably. If the knocking is mild, it may only increase noise without significant engine damage. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, potentially leading to severe engine damage.
3
1
Share

What is the 0-100 km/h acceleration time of the Audi A6L?

According to official data, the latest Audi A6L comes in three variants with different horsepower outputs: the 190-horsepower model accelerates from 0-100 km/h in 8.3 seconds, the 224-horsepower model in 7.5 seconds, and the 340-horsepower model in 5.6 seconds. The 0-100 km/h acceleration time refers to the duration it takes for a stationary vehicle to reach 100 km/h after ignition, serving as the most intuitive indicator of a car's power performance. Manufacturers typically list the official 0-100 km/h acceleration time in promotional materials, but real-world test results often differ due to variables such as ambient temperature, road conditions, vehicle wear, and even fuel levels. The 190-horsepower model measures 5038mm*1886mm*1475mm with a 3024mm wheelbase. Its engine delivers a maximum power of 140kW (190 hp), a top speed of 230 km/h, and an NEDC combined fuel consumption of 6.9L. It operates at a maximum power range of 4200-6000 rpm, uses 95-octane fuel with direct injection technology, and features five-link independent suspension systems both front and rear. The 224-horsepower model shares the same dimensions (5038mm*1886mm*1475mm, 3024mm wheelbase). Its engine produces 165kW (224 hp), achieves a top speed of 240 km/h, and has an NEDC combined fuel consumption of 7.5L. The maximum power range is 5000-6000 rpm, also using 95-octane fuel with direct injection and five-link independent suspensions. The 340-horsepower model maintains identical dimensions. Its 250kW (340 hp) engine enables a top speed of 250 km/h with 8L NEDC combined fuel consumption. The maximum power range is 5400-6400 rpm, running on 95-octane fuel with direct injection and five-link independent suspensions. Additional factors affecting the Audi A6L's acceleration include: Torque: Representing rotational force, higher torque (A6L's max: 320Nm) translates to stronger propulsion and faster acceleration. Transmission efficiency: As the power transfer medium, transmission efficiency impacts acceleration. The hierarchy is: manual > dry dual-clutch > wet dual-clutch > AT > CVT. The A6L uses a 7-speed wet dual-clutch transmission. Power-to-weight ratio: Expressed in Hp/T, this ratio between horsepower and vehicle weight directly influences acceleration capability.
12
4
Share

What additional protective measures should be taken for cars?

Additional protective measures for cars include: 1. Installing a dash cam: Dash cams can record videos, take photos, and preview images, aiming to safeguard the legitimate rights and interests of car owners; 2. Applying window film: Window film, also known as thermal insulation film or solar film, can block ultraviolet rays and heat; 3. Rustproofing the car body: Protection for the undercarriage can be enhanced through chassis sealing or chassis armor spraying; 4. Laying floor mats inside the car: This makes the car easier to clean; 5. Protecting the car paint: Methods for protecting car paint include waxing, coating, and crystal coating, with waxing being the most commonly used and relatively simple method.
11
1
Share

What are the differences between Subaru WRX and Subaru STI?

The differences between Subaru WRX and Subaru STI are: 1. Different body dimensions: The Subaru WRX has a body length, width, and height of 4580mm, 1795mm, and 1470mm respectively; the Subaru STI has a body length, width, and height of 4570mm, 1775mm, and 1460mm respectively. 2. Different transmissions: The Subaru WRX has a 6-speed manual transmission; the Subaru STI has a 6-speed manual transmission and a continuously variable transmission. 3. Different power: The Subaru WRX is equipped with a 2.0T turbocharged engine with a maximum power of 200kW; the Subaru STI is equipped with a 2.5T turbocharged engine with a maximum power of 227kW.
7
5
Share

What are the reasons for the complete power loss in the Roewe RX5?

Roewe RX5 complete power loss is caused by: 1. Oxidation of the battery's positive terminal, leading to poor contact; 2. Issues with the negative grounding. Taking the 2020 Roewe RX5 Luxury Edition as an example, its body dimensions are: length 4571mm, width 1855mm, height 1719mm, with a wheelbase of 2708mm. The 2020 Roewe RX5 Luxury Edition features a MacPherson strut front suspension and a longitudinal trailing arm semi-independent rear suspension. It is equipped with a 1.5L turbocharged engine, delivering a maximum horsepower of 173PS, maximum power of 127kW, maximum torque of 275Nm, paired with a 6-speed manual transmission.
2
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.