Do BMW Cars Not Come with a Jack?

How Long Is the Warranty Period for a New Car?

The warranty period for a new car is generally 3 years or 60,000 kilometers. Circumstances under which warranty services cannot be normally enjoyed: The purchased car product has been notified in writing of existing defects; the accompanying documents explicitly state that modification, adjustment, or disassembly is prohibited, and the consumer's own modification, adjustment, or disassembly causes damage; improper handling by the consumer after a product quality issue arises causes damage; damage caused by the consumer's failure to use, maintain, or repair the product correctly as required by the user manual; damage caused by force majeure; quality issues with consumable parts beyond the stated warranty period. Points to note about the warranty period: During the three-guarantee validity period and the warranty period, a valid car purchase invoice and three-guarantee certificate (the certificate date must match the car purchase invoice date) must be provided to enjoy the corresponding three-guarantee protection services.

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Symptoms of Water Ingress in Automatic Transmission?

Automatic transmission water ingress symptoms are as follows: Mild water ingress: Partial rusting of screws inside the transmission. It is recommended to replace seals, gaskets, and other components to extend service life, along with changing the transmission fluid and differential oil. Moderate water ingress: White deposits appear in the oil pan. When oil mixes with water, it forms a white emulsion that adheres to the oil pan. The presence of such deposits indicates moderate water ingress in the transmission. Seals, gaskets, and other components as well as transmission fluid and differential oil must be completely replaced. Severe water ingress: Can be determined by the color and viscosity of the transmission fluid. Water ingress in automatic transmissions can corrode steel screws inside the transmission, necessitating immediate inspection and repair. Similar to moderate water ingress, but in severe cases, the sprocket may also need replacement.

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What is the difference between a handbrake and an electronic parking brake?

The differences between a handbrake and an electronic parking brake are: 1. Space occupation: The handbrake occupies more space; the electronic parking brake is aesthetically pleasing, convenient, and space-saving. 2. Functionality: The handbrake can be used for drifting maneuvers; the electronic parking brake cannot perform drifting maneuvers. 3. Control system: The handbrake is not affected by the battery; when the battery fails, it can cause the electronic parking brake to malfunction or become impaired. The professional term for the handbrake is auxiliary brake, which differs in principle from the main brake. It uses a steel cable connected to the rear brake shoes to apply braking force to the vehicle. Long-term use of the handbrake can cause the steel cable to undergo plastic deformation. Since this deformation is irreversible, prolonged use will reduce its effectiveness. The electronic parking brake is a technology that achieves parking braking through electronic control. Its working principle is the same as that of a mechanical handbrake, both of which apply braking force by tightening the rear brake shoes via a cable.

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Is there any impact if accidentally driving over a speed bump at over 100 km/h?

Accidentally driving over a speed bump at over 100 km/h once in a while has little impact, but you should pay attention to slowing down next time. The methods for passing over speed bumps are introduced as follows: Reduce speed in advance: When encountering a speed bump while driving, it is best to slow down in advance and then pass over the speed bump straight on, balancing the impact force on both tires and ensuring the suspension system on both sides bears the force evenly. Do not slam on the brakes or step on the accelerator, allowing the vehicle to pass over the speed bump habitually. This approach is both safe and protects the vehicle's suspension and steering systems, causing minimal damage to the car. Passing over the speed bump with one side: When passing straight over a speed bump, the car's bumps and jumps will be more significant. However, when passing over the speed bump at an angle or with one wheel, the car's jumps are less pronounced, and the number of sways is also reduced when passing with a single wheel.

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Are new cars equipped with safety hammers?

Some new cars come equipped with safety hammers. It is best to install the car safety hammer on the central frame of the car where it is conspicuous and easily accessible. Correct usage of a safety hammer: Take out the safety hammer from the car and directly strike the four corners of the tempered glass. When a small crack appears, it indicates that the internal stress distribution of the glass has been significantly compromised, leading to the instant formation of numerous spider-web cracks. At this point, a few more strikes will shatter the glass. If the glass has a film, additional force is needed to kick it open, as the film has anti-shatter properties and won't detach without sufficient external force. Car safety hammers, also known as multifunctional safety hammers, are tools installed in vehicles to break car windows for escape during emergencies or disasters. There are numerous brands of car safety hammers, with varying functions and styles. The hammer body can be made of plastic, wood, or steel, while the hammer head is always metal.

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What Causes the Sound When Braking in Reverse Gear for Automatic Transmission?

The sound that occurs when pressing the brake pedal while reversing is likely coming from the brake disc and pads. This issue is usually caused by the hardened surface layer of the brake pads. Additionally, it could be due to the chamfering effect that develops after prolonged use of the brake pads. The solution is to have the brake pads resurfaced at a 4S repair shop. Handbrake Operating Principle: The handbrake, technically referred to as an auxiliary brake, operates differently from the main braking system. It uses a steel cable connected to the rear brake shoes to apply braking force to the vehicle. Prolonged use of the handbrake can cause the steel cable to undergo plastic deformation. Since this deformation is irreversible, long-term use will reduce its effectiveness and increase the handbrake's travel distance. The handbrake system also includes a return spring. When the handbrake is engaged, the spring stretches; when released, it returns to its original length. Over time, this spring can also deform with extended use. The Necessity of Proper Brake Usage: The handbrake is a frequently used system. Proper and correct usage ensures smoother operation in the future, extends its adjustment intervals, and reduces maintenance and replacement costs.

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Do BMW Cars Not Come with a Jack?

How Long Is the Warranty Period for a New Car?

Symptoms of Water Ingress in Automatic Transmission?

What is the difference between a handbrake and an electronic parking brake?

Is there any impact if accidentally driving over a speed bump at over 100 km/h?

Are new cars equipped with safety hammers?

What Causes the Sound When Braking in Reverse Gear for Automatic Transmission?

How to Solve the Heavy Steering Wheel Issue When Driving at Low Speed in Camry?

How many days does it take to check for traffic violations in another city?

What does the OFF button in a car mean?

What is the introduction of the 4F20TC13 diesel engine?