What Causes Increased Car Noise?

1 Answers
CamilaAnn
07/29/25 6:40am
Increased car noise can be attributed to the following reasons: 1. Carbon buildup in the engine; 2. Damaged shock absorbers; 3. Spark plug carbon deposits; 4. Tire aging; 5. Internal damage to the valve guides; 6. Cooling system malfunction; 7. Poor quality engine oil; 8. Engine misfire; 9. Large gaps in the cabin or vehicle body. Solutions to reduce car noise include: 1. Applying sound-absorbing foam under the engine hood; 2. Installing sound-absorbing cotton material in the trunk, at the bottom of the rear compartment, and on the wheel arches on both sides; 3. Installing professional damping plates in areas prone to noise; 4. Adding sealing strips inside the doors; 5. Replacing tires.
Was this review help?
18
2
Share
More Forum Discussions

What is the mnemonic for S-curve driving test tips?

Subject 2 driving test S-curve technique mnemonic is: left point aligns with right line, right point aligns with left line. Below are precautions for Subject 2 test: 1. Reverse parking: Main deduction points include hitting lines during reverse, vehicle not entering parking space, exceeding time limit, and not following prescribed route. After regulation reform, reverse parking now has a 210-second time limit - exceeding fails the test. Perform right-side reverse first, then left-side, not following this sequence fails the test. Maintain 30cm margin observation during reverse. 2. Parallel parking: Main deduction points involve turn signals, 30cm margin, and line contact. Before entering test area, steer right early to align wiper's highest point with roadside line for 30cm adjustment. Remember key steps: first full right turn, straighten wheels, full left turn, park, activate left turn signal, check mirrors when exiting to prevent wheel contact. 3. 90-degree turn: Main deductions concern turn signals and line contact. Activate turn signal when entering test area, turn it off after voice prompt - incorrect operation deducts 10 points. Adjust 30cm margin similarly to parallel parking. When making full turn, slightly release clutch to prevent stalling. Straighten wheels only after rear wheels clear the turn to avoid line contact.
11
1
Share

What are the differences between imported and domestically produced Tiguan?

Imported and domestically produced Tiguan differ in terms of power and emission standards. Below are the detailed introductions: Power aspects: The domestically produced Tiguan adopts a 1.8T and 2.0T power combination, and there will also be a 1.4T model later, same as the imported version. However, the imported version only has 1.4T and 2.0T high and low power models, and the 1.8T has never appeared in any imported Volkswagen models, including the Magotan wagon. The domestically produced Tiguan 330 model is equipped with a 1.8T engine, while the imported 330 model is the low-power version of the 2.0T, but both have the same maximum power of 180 horsepower, with a torque difference of 20 N·m. In terms of the engine, the imported 2.0T high and low power versions both feature mixed injection, while the domestically produced 2.0T does not have mixed injection. The domestically produced 1.8T model is equipped with a DQ380 seven-speed wet dual-clutch transmission, which is only supplied in China, while other imported models are equipped with a DQ500 seven-speed wet dual-clutch. Emission standards: Additionally, the domestically produced and imported versions differ in emission standards. The domestically produced version meets the China 5 standard, while the imported version meets the Euro 6 standard.
15
3
Share

Why did Brabus change its name?

Brabus was renamed BOS because of transliteration issues. Here are some extended details: 1. Brand Introduction: Brabus was established in 1977 as a German automotive brand specializing in modified vehicles. The German Brabus Automotive Company is the world's largest and most renowned producer of personalized automobiles. 2. Advantages: The German BRABUS brand is distinguished by its top-tier professional engine modification technology, unparalleled power performance, and superior quality. Currently, Brabus holds the titles for the world's fastest sedan, fastest four-door coupe, fastest station wagon, and fastest SUV.
20
3
Share

What to Do About Scratches on Brake Discs?

It is normal to have scratches on brake discs. Having some shallow scratches in lines is quite common, and generally, there is no issue as long as the scratch depth does not exceed 0.6 millimeters. The causes of deep scratches include: 1. Only the front or only the rear brake discs have grooves. This situation is usually caused by driving habits or uneven distribution of braking force between the front and rear. 2. Only one brake disc has grooves while the others are normal. This is generally due to material issues or external forces, with possible factors as follows: a. Foreign objects getting stuck between this brake disc and the brake pad, especially when braking hard; b. Uneven force from the brake caliper; c. Manufacturing defects in the brake pad, leading to uneven composite materials, which make the brake pad too hard or contain large metal particles.
11
3
Share

How to Maintain a Car When Not in Use for a Long Time?

When a car is not in use for a long time, it should be started periodically to keep the engine in normal working condition. Here are some relevant tips: 1. Start the vehicle regularly: If the car is not in use for a long time, it is best to start it once every one or two weeks. If possible, drive the car a short distance to prevent engine issues. 2. Take protective measures: Cover the car with a car cover and park it in a garage, or park it on a flat surface away from direct sunlight to prevent paint damage or fluid leakage. 3. Clean the vehicle in advance: Before leaving the car unused for a long time, clean both the exterior and interior. Dirt on the car's paint left uncleaned for a long time can damage the paint, and food left inside can mold and produce odors.
20
5
Share

What are the three main insurances generally purchased for small cars?

Small cars typically purchase compulsory traffic insurance, vehicle damage insurance, and third-party liability insurance. Below are detailed explanations: 1. Compulsory traffic insurance: This is a mandatory auto insurance required by the state. While other types of insurance may be optional, compulsory traffic insurance must be purchased by the car owner; otherwise, the vehicle is not permitted on the road. 2. Vehicle damage insurance: This insurance generally covers damage to either the owner's vehicle or the other party's vehicle in an accident. In most cases, car owners will opt for this coverage. 3. Third-party liability insurance: This insurance provides coverage for injuries to third parties or damage to their property. For example, if a traffic accident involves injuries to a third party, having this insurance ensures compensation.
3
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.