How to Deal with the Abnormal Noise of Leopard Sunroof?

2 Answers
VanCassandra
07/25/25 12:48am
Abnormal noise in the Leopard sunroof indicates a severe lack of lubrication in the sliding rails. It is necessary to check whether the sliding rails are deformed and perform lubrication maintenance in a timely manner. Below are the precautions for car sunroof maintenance: 1. During the use of the sunroof, clean it regularly. After 2 to 3 months of use, the sunroof should be cleaned, mainly to remove dust and particles from the gaps of the sunroof. When cleaning, use a cloth to first remove the dust on the sealing strip, and after wiping it clean, apply a small amount of butter to the sliding rail tracks. 2. When the vehicle is parked and unused for a long time, clean it regularly. For example, use fine talcum powder to clean the sealing ring and other sunroof components, which can effectively extend the service life of the components.
Was this review help?
9
2
Share
Luca
08/10/25 3:54pm
I've also encountered the annoying problem of a rattling sunroof while driving. Last time, my Leopard car's sunroof would squeak as soon as I opened it, so I decided to fix it myself. First, I parked on a flat surface, opened the sunroof, and used a cotton swab dipped in medical alcohol to clean the tracks, removing accumulated dust and sand. Then, I applied a special silicone lubricant for sunroofs. Be careful not to use cooking oil or butter, as they attract dirt and can develop odors. After finishing, I closed the sunroof and tested it—the noise was significantly reduced, saving both money and time. If the noise persists after cleaning, it might be due to loose parts, such as screws or clips wearing out. In that case, you'll need to check and tighten them or consider replacing the parts. Regular maintenance is crucial; cleaning the tracks every quarter can prevent bigger issues.
Was this review help?
3
1
Share
Expand All
More Forum Discussions

What Hazards Can Engine Overheating Cause?

Engine overheating can lead to several hazards including decreased engine charging efficiency, abnormal combustion, oil degradation, and ignition wire damage. Decreased engine charging efficiency: Due to engine overheating, the temperature inside the engine compartment rises, reducing the engine's air intake capacity. Abnormal combustion: The temperature of the air-fuel mixture entering the cylinders increases, raising the overall operating cycle temperature of the engine. With low radiator efficiency, the engine remains overheated, causing the end-gas mixture in the combustion chamber to absorb more heat, accelerating pre-flame reactions and increasing the likelihood of knocking. Oil degradation: Under high temperature and pressure, engine oil's oxidation stability deteriorates, accelerating thermal decomposition, oxidation, and polymerization processes. Ignition wire damage: When driving in high-temperature environments, overheating ignition coils can weaken high-voltage sparks, leading to engine misfires at high speeds. In severe cases, ignition coils may burn out, affecting normal vehicle operation. Causes of engine overheating: Water pump failure: A damaged water pump prevents coolant from circulating in the cooling system, failing to dissipate heat generated by engine combustion. Insufficient or substandard coolant: Lack of coolant means no cooling medium in the system to transfer engine heat, causing overheating. Additionally, modern engines operate above water's boiling point; using water or unqualified coolant can also lead to overheating. Thermostat failure: A malfunctioning or stuck thermostat restricts the engine to a small coolant loop, rendering the radiator ineffective and reducing cooling capacity, resulting in overheating. Fan issues: Fan problems may stem from physical damage (e.g., broken blades, seized operation, or snapped belts) or control circuit failures preventing proper electronic fan operation. Dirty radiator surface: Contaminants on the radiator impair heat conduction, hindering effective heat dissipation to the air and causing engine overheating. How to handle engine overheating: Stop driving and open the hood to allow heat dissipation. Apply coolant over the engine to facilitate heat removal through circulation.
19
4
Share

How to Pass the Vision Test at the Vehicle Management Office?

Here are the methods to pass the vision test at the Vehicle Management Office: 1. Method 1: Wear glasses with the appropriate prescription for the test. The vision test for a motor vehicle driver's license requires corrected vision, not necessarily uncorrected vision. 2. Method 2: Get re-examined at a hospital. If you fail the vision test at the Vehicle Management Office, you can have a re-examination at a hospital and then submit the medical examination form and relevant payment receipts to the driving school. 3. Method 3: Correct your vision. If you fail the first test, you can visit an ophthalmology hospital to correct your vision. Once your vision meets the required standards, you can take the test again.
2
5
Share

Will points be deducted if the side line exceeds 30 centimeters?

Currently, examination vehicles are equipped with GPS positioning. White road lines, margins, traffic lights, crosswalks, bus stops, etc., are all integrated into the system and fully networked. The requirement for parallel parking is 30 cm, ideally within this range. Exceeding 30 cm results in a 10-point deduction, as long as the vehicle is parked by the side and not in the middle of the road. The following are the point deductions for parallel parking: 1. First point: Stopping midway results in a 100-point deduction. 2. Second point: Driving over the lane line with the tires results in a 10-point deduction. 3. Third point: The vehicle body exceeding the line after parking results in a 100-point deduction. Although the rules state that causing the engine to stall due to improper operation deducts 10 points, stalling during parallel parking is equivalent to stopping midway, resulting in an immediate 100-point deduction.
2
1
Share

Should the Han DM use 92 or 95 octane gasoline?

The Han DM should use 92 octane gasoline, as this fuel grade is recommended in the vehicle's official user manual. In addition to checking the appropriate gasoline grade in the user manual, the fuel cap of the Han DM will also indicate the recommended grade. Generally, the fuel grade can also be determined based on the engine's compression ratio. Vehicles with a compression ratio between 8.6-9.9 should use 92 octane gasoline, while those with a compression ratio between 10.0-11.5 should use 95 octane gasoline. If the compression ratio is even higher, 98 octane gasoline is recommended. However, with the application of new technologies, the compression ratio alone cannot determine the fuel grade, as high-compression engines can also be tuned to use lower-octane fuel. Other 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 Han DM occasionally uses the wrong gasoline grade, simply switching back to the correct grade after consumption is sufficient. However, long-term use of the wrong grade can have the following effects: For vehicles designed for lower octane fuel, using a higher grade will not cause damage, but the increased octane rating may alter the fuel's ignition point, leading to delayed combustion in the engine. This reduces both the engine's power output and thermal efficiency, resulting in poorer performance. For vehicles designed for higher octane fuel, using a lower grade can cause engine knocking. The significantly lower octane rating lowers the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance is created during the upward stroke. This resistance makes the engine run very unstably. Mild knocking may only increase noise without significant engine damage, but severe knocking indicates serious engine issues, affecting driving stability and causing abnormal wear on pistons and cylinders, potentially leading to cylinder scoring.
4
0
Share

Why Can't a Diesel Truck Start After Stalling?

Issues affecting the failure to start a diesel truck are as follows: 1. Check the spark plugs: Since spark plugs are crucial to the vehicle's ignition system, and the ignition system is key to engine operation, the performance of the spark plugs directly impacts the overall working performance and efficiency of the vehicle. 2. Battery depletion: The characteristic symptoms include the starter motor beginning to turn but with insufficient speed or power, followed by the starter motor only making a clicking sound without turning. In winter, low temperatures and forgetting to turn off certain electrical devices can lead to the vehicle failing to start, especially after prolonged short-distance, low-speed use in winter, which can cause the battery voltage to drop below the rated value, making starting and normal rotation impossible. 3. Fuel flow obstruction: The characteristic symptom is the absence of oil pressure in the engine's fuel supply line. This situation often occurs on particularly cold mornings and is caused by long-term contamination of the fuel lines. At very low temperatures, water and debris can mix, blocking the fuel lines and resulting in failure to start.
2
2
Share

What is the urban fuel consumption of the 4.0 Patrol?

4.0 Patrol urban fuel consumption is 20 liters per 100 kilometers. Here are detailed introductions about it: 1. Power aspect: The horsepower has been increased from the original 279 horsepower to 391 horsepower, and the torque has been increased from 394NM to 552NM, which is enough to compete with the 5.6 displacement Patrol. It is equipped with a twin-screw mechanical supercharger kit, featuring high torque at low speeds and constant supercharging without attenuation. 2. Performance aspect: It operates at a constant working temperature, with smooth gear shifting and no jerking, high safety and stability, suitable for off-road vehicles in various road conditions, and it provides a comfortable and quiet driving experience.
1
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.