Will losing the car maintenance manual affect the warranty?

What are the causes of car valve leakage?

Reasons for car valve leakage: 1. Wear, burning, spots or depressions, and carbon deposits on the working inclined surface of the valve and valve seat ring; 2. Excessive clearance between the valve stem and valve guide, shaking of the valve stem or bending of the valve stem, and tilting of the valve head, resulting in incomplete valve closure; 3. Weakening or loss of elasticity of the valve spring or spring breakage can also prevent tight fitting between the valve and valve seat; 4. Small valve clearance, after the valve stem expands due to heat, the tappet and rocker arm push open the valve, preventing the valve from fully closing and causing leakage. The valve is an important component of the engine, and its function is to specifically deliver air into the engine and discharge the exhaust gas after combustion.

5

4

Share

What documents are required for new vehicle annual inspection?

Documents required for new vehicle annual inspection: 1. Motor vehicle inspection mark application form (provided on-site, to be filled directly); 2. Motor vehicle license; 3. Compulsory traffic insurance certificate; 4. Vehicle and vessel tax payment or tax exemption certificate; 5. Owner's ID card. If processed by others, the agent needs to bring their own ID card. Vehicle annual inspection is also known as motor vehicle inspection. Depending on the usage nature of the vehicle, the inspection items and scope may vary. If a vehicle is found by traffic police on the road without annual inspection, the owner will be fined or the vehicle may be impounded. Meanwhile, in insurance contracts, vehicles that fail timely annual inspection are considered unqualified vehicles, and no claims will be paid in case of accidents.

16

3

Share

Do 4S stores charge for test drives?

Generally, there is no charge. When you go to a 4S store to buy a car, there is a test drive service. Through the test drive, you can initially understand the performance of the car and also get a comprehensive understanding of the vehicle, helping consumers make more rational decisions when purchasing and avoiding regret. Precautions for test drives at 4S stores: 1. Sign a contract during the test drive: Usually, when conducting a test drive at a 4S store, you need to sign an agreement. When signing, read it carefully, as this contract plays a crucial role if any issues arise during the test drive. 2. Ask if the test drive car is insured: Before the test drive, you should ask the salesperson at the 4S store whether the vehicle is insured. If it is insured, you can drive with peace of mind. If not, be extra careful to avoid collisions and scratches. 3. Have staff accompany you: During the test drive, it's best to have a salesperson from the 4S store accompany you. They can help you better understand the vehicle's performance and make the test drive more reassuring. 4. Choose an open area for the test drive: When test driving, select a good route and go to a relatively open place. This ensures safety and allows you to better understand the car's performance and overall condition by choosing less crowded areas.

2

Share

What does Front Assist mean?

Front Assist is an urban emergency braking system, also known as a pre-collision safety system, and is not an adaptive cruise control system. This system can be turned on or off through the vehicle's instrument menu. The pre-collision safety system can automatically detect obstacles ahead and calculate the likelihood of a collision. If the system determines that a collision is highly probable, it will emit an alarm sound. The functions of Front Assist include: 1. Real-time monitoring of the distance to the vehicle ahead through a radar sensor installed in the front radiator grille; 2. Pre-processing the brakes in emergency situations and alerting the driver through optical and acoustic warnings as well as brake vibrations to prompt appropriate actions; 3. If the driver does not brake at all, the system will automatically decelerate the vehicle.

2

1

Share

What does the yellow exclamation mark light in a car mean?

When a yellow exclamation mark appears on the car dashboard, it can indicate four possible situations: general fault, automatic transmission fault, abnormal tire pressure, or lighting fault. Below is a detailed analysis of these four scenarios: General Fault: An exclamation mark inside a triangle indicates a general performance or component malfunction in the car. Common issues include parking sensor failure, fuel cut-off system intervention or malfunction, external light failure, or engine oil pressure sensor failure. It is recommended to visit a 4S shop for inspection to identify the source of the fault. Automatic Transmission Fault: A yellow gear with an exclamation mark inside is the automatic transmission fault warning light, indicating a transmission malfunction or low transmission fluid level. The transmission fluid should be replaced promptly. Abnormal Tire Pressure: An exclamation mark below a horizontal line inside parentheses represents the tire pressure monitoring warning light. This light illuminates when the tire pressure is too low. Check the tire pressure and restore it to the normal range. Lighting Fault: A yellow bulb with an exclamation mark is the lighting fault indicator, signaling a malfunction in one of the car lights. Solution: Visit a 4S shop for inspection as soon as possible, or conduct a self-check focusing on commonly used bulbs such as turn signals, fog lights, and interior lights to identify the issue. Additionally, a red exclamation mark inside a circle with parentheses indicates a brake system warning, typically signaling a brake system malfunction or low brake fluid level. Immediate inspection of the brake system is necessary to prevent accidents.

18

0

Share

Does Clay Bar Damage Car Paint?

Clay bar does not damage car paint. It has the function of removing dirt without harming the surface paint of the vehicle. This is because clay bars are made of ultra-fine fibers and solid colloid through repeated intensive mixing. Characteristics of clay bars: 1. After repeated wiping by car wash workers, it can remove fine pores and spots caused by oxidation on the vehicle body; 2. It can adhere to and remove natural oxidation, water stains, residues from car washing, and improper care on the vehicle body. In mechanical processing, for fine machining, tiny metal residues left on metal surfaces can be removed using clay bars, which is widely applied in precision machining workshops. Additionally, in the automotive repair industry, clay bars are also extensively used in the field of painting.

6

3

Share

Will losing the car maintenance manual affect the warranty?

What are the causes of car valve leakage?

What documents are required for new vehicle annual inspection?

Do 4S stores charge for test drives?

What does Front Assist mean?

What does the yellow exclamation mark light in a car mean?

Does Clay Bar Damage Car Paint?

What is the content of the Subject 4 driving test?

What is a retired vehicle?

Where is the cabin air filter located in the older Buick LaCrosse?

Where is the car's air conditioning filter located?