What is the difference between Volvo's SPA and CMA platforms?

Should the exhaust pipe be welded or replaced during repair?

It can be welded, but if it's too thin, welding may not be ideal, and it's recommended to replace the exhaust pipe. The angle of the exhaust pipe can affect the vehicle. Exhaust pipe angle at 45 degrees: Within this emission angle range, when the vehicle is in operation, high-velocity exhaust gases can blow dust off the ground. The faster the vehicle speed, the greater the dust pollution. Additionally, the greater the vehicle's power, the higher the gas flow and velocity, leading to increased dust pollution. According to market research, the areas most severely affected by dust pollution are along highways, where higher traffic volumes result in more significant dust pollution. Furthermore, dust pollution is also related to the cleanliness of the road surface; the more loose dust on the road surface, the greater the amount of dust blown up by vehicle exhaust. Exhaust pipe angle directed towards the sides of the vehicle: If the exhaust pipe angle is directed towards the sides of the vehicle, the exhaust gases can cause thermal airflow impact injuries to pedestrians during operation. Moreover, the vehicle exhaust contains unburned atomized oil residues, including pollutants such as sulfides and carbides, which can cause personal harm to humans.

15

1

Share

Can You Continue Driving if a Nail is Stuck in the Tire Without Air Leakage?

Tires punctured by nails without air leakage can still allow the car to drive normally, but you should drive at a low speed to the nearest repair shop for inspection. If left untreated, it may lead to a tire blowout, posing a significant hazard. Below are some relevant explanations: 1. Most car tires on the market today are tubeless tires. If a tubeless tire is punctured by a nail, the air won’t leak out quickly, giving you enough time to drive to a repair shop for inspection. 2. It’s important to note that if a tire is punctured by a nail, you should never pull it out immediately, as this could cause severe air leakage, making it impossible to continue driving. 3. Generally, the tread of a tire is relatively thick. If a nail is stuck in the tread, you can pull it out and apply some soapy water to the puncture site to check for bubbles. If no bubbles appear, no repair is needed, and the tire can continue to be used or serve as a spare tire. If bubbles appear, it means the tire has been punctured and requires repair before it can be used again.

17

4

Share

What is the Best Solution for BMW 3 Series Burning Engine Oil?

In the past, the only solution for burning engine oil issues was disassembly and repair. Now, there are solutions available that do not require disassembly: The common practice is to add engine oil for free. If the problem worsens and the owner complains strongly, the engine will be disassembled to replace the piston rings. For vehicles where replacing the piston rings still does not solve the problem, the engine will be replaced. Currently, the solution for BMW burning engine oil issues is simply to replace the valve stem seals, and this can be done without disassembling the cylinder. The technology is already very mature. Hazards of BMW 3 Series Burning Engine Oil: It not only causes the vehicle's oxygen sensor to fail prematurely, leading to increased carbon deposits in the combustion chamber, unstable idling, weak acceleration, increased fuel consumption, and excessive exhaust emissions, among other adverse effects. More seriously, it can lead to insufficient engine lubrication, causing irreparable damage to the engine or even rendering it unusable. This results in significantly higher repair costs and even potential safety hazards.

19

1

Share

Can the car still be driven if water accumulates inside due to a clogged sunroof?

If water accumulates inside the car due to a clogged sunroof, the car can still be driven, but it needs to be repaired as soon as possible. If water accumulation occurs, the owner can: If a water leak is detected, the owner should go to a repair shop or a place where tires can be changed and use an air pump to blow high-pressure air into the drainage holes of the two front drainage pipes of the sunroof to unclog them. Be careful not to use too strong air pressure, as it may cause the rubber joints and drainage pipes to detach, leading to continued leakage. Preventing clogging of the sunroof drainage pipes: Regularly open the sunroof to check for water accumulation. If there is water, it indicates that the drainage pipes are clogged and should be dealt with immediately. After opening the sunroof, check if there is dust accumulation along the tracks. If there is, wipe it clean with a dry cloth. You can also pour water from a mineral water bottle into the two front corners of the sunroof after opening it to observe if the water flows smoothly and check if an approximately equal amount of water flows out from under the car.

2

5

Share

What to Do When the Car Key Is Locked Inside the Vehicle

When the car key is locked inside the vehicle, the owner can use a spare key, call the 4S shop for assistance, or contact a qualified and professional locksmith to unlock the car. The owner can also take self-help measures, such as using tape to pull the car window open forcibly; using a sharp object to remove the door seal and inserting a wire through the gap to press the unlock button. Since the electronic key inside the car is still within the sensing range of the vehicle system, the owner can try to directly pull the door open to enter the car. If the owner's car model is equipped with a sensor-activated trunk, the trunk can be opened directly without pressing the corresponding button on the key or inside the car as long as the key is within the sensing range. The owner can try to open the trunk to enter the car. If the owner's car model has a corresponding APP unlocking function, the car door can be unlocked through a bound and associated mobile application. Maintenance methods for car keys include: not placing them with metal objects frequently; keeping a spare key; preventing smart keys from falling or being bumped; avoiding exposing smart keys to high temperatures or liquids; and not placing keys together with electronic devices.

13

4

Share

Using Cold Air or Hot Air for Defogging?

Defogging can be achieved using both hot air and cold air. There are three methods for defogging. Cold Air Defogging: The fundamental reason for window fogging is the significant temperature difference between the inside and outside of the car—cold outside and warm inside, which causes condensation on the windows. Using cold air for defogging can quickly dry the moisture on the windshield. Therefore, for emergency defogging while driving, cold air is effective. Hot Air Defogging: When using hot air for defogging, the fog on the windows may initially become heavier, but after a while, the hot air will dry it out. Since the moisture is removed, the windows will remain fog-free for a long time, and the interior of the car will also become much warmer. Opening Windows or Using Defogging Spray: Another method is to open the car's sunroof (or windows) while driving to maintain a consistent temperature inside the car, preventing fogging. Alternatively, you can mix dish soap with water, spray it evenly on the glass, and then wipe it clean with a dry cloth. This provides long-lasting defogging without leaving any marks.

12

0

Share

What is the difference between Volvo's SPA and CMA platforms?

Should the exhaust pipe be welded or replaced during repair?

Can You Continue Driving if a Nail is Stuck in the Tire Without Air Leakage?

What is the Best Solution for BMW 3 Series Burning Engine Oil?

Can the car still be driven if water accumulates inside due to a clogged sunroof?

What to Do When the Car Key Is Locked Inside the Vehicle

Using Cold Air or Hot Air for Defogging?

What to do if the gearbox of Yidong Plus is leaking oil?

Why Is There More Tire Noise After Changing Tires?

What is the real reputation of LandSail tires?

Does the vehicle need to undergo an on-site inspection in the sixth year?