Mercedes-Benz S350 Trunk Fails to Close Automatically

Can insufficient steering wheel return force be adjusted?

Insufficient steering wheel return force can be adjusted. Low tire pressure: When the tire pressure of a car is insufficient, the contact area between the tire and the ground increases, leading to higher friction. This can result in insufficient steering wheel return force, difficulty in steering, and increased fuel consumption. In such cases, it is necessary to promptly replenish the tire pressure. Generally, the recommended tire pressure for car tires is around 2.5 bar. Steering gear malfunction: There are many reasons for steering gear malfunctions, including lack of lubrication, detachment of the steering gear rubber sleeve, severe wear of the steering gear gears, etc. The specific situation should be inspected and repaired by professionals at a repair shop or 4S store.

20

4

Share

What Does a Multi-Function Steering Wheel Mean?

Multi-function steering wheel refers to a steering wheel that has additional function buttons added to the positions within reach of the thumb and the lower side of the steering wheel. These buttons typically include functions such as adjusting the interior temperature, turning on/off and controlling the in-car audio system, answering phone calls, etc. Some models also integrate cruise control buttons on the steering wheel. Advantages of multi-function steering wheels: Drivers can directly operate many electronic devices in the car from the steering wheel without having to search for various buttons on the center console. This allows them to focus more on the road ahead, significantly improving driving safety. Originally an equipment feature of mid-range cars, multi-function steering wheels have gradually become more common in family cars due to technological advancements. Many small/compact cars launched in 2013 were equipped with this feature. Although most functions are limited to audio control, they provide considerable convenience and enjoyment for family car users. There are two types of steering wheel adjustments. One is two-way adjustment, and the other is four-way adjustment. Two-way adjustment: Adjusts the vertical distance of the steering wheel to meet the needs of drivers of different heights for the up and down space between the steering wheel and themselves. Axial adjustment: Adjusts the length along the axis of the steering wheel to meet the needs of drivers of different builds for the distance between the steering wheel and themselves. Cars with only one of these adjustment types are referred to as two-way adjustable, while those with both are four-way adjustable.

10

2

Share

What does 'unlimited years and mileage for the first owner' mean?

The meaning of 'unlimited mileage and years for the first owner' is that the first owner enjoys a lifetime warranty. This means that only the first owner of the vehicle can benefit from the lifetime warranty service. When the car is sold as a used vehicle, the lifetime warranty service is terminated immediately and is not extended to the next owner. A warranty refers to a quality guarantee, meaning that various components of the car can be replaced for free if they exhibit quality issues that are determined not to be caused by human damage. The reasons for offering a lifetime warranty only to the first owner are as follows: 1. The first owner clearly understands the scope of the lifetime warranty: When the car manufacturer signed the lifetime warranty agreement with the first owner, the first owner was fully aware of the coverage and other terms of the warranty. However, used car dealers often do not disclose the conditions of the lifetime warranty when selling the car. As a result, the second owner, unaware of the policy, may easily violate the warranty conditions (such as not performing maintenance at an authorized 4S shop). To avoid complications, car manufacturers implement the lifetime warranty policy only for the first owner. 2. 4S shops do not profit from the second owner: Many used car owners do not return to the original 4S shop for maintenance, which undoubtedly results in financial losses for the 4S shop. Therefore, used cars typically only qualify for warranty services during the manufacturer's warranty period. When purchasing a car, it is essential to clarify the detailed warranty coverage. Additionally, if considering an extended warranty service, it is important to understand whether there are any additional conditions (such as mandatory maintenance at an authorized 4S shop).

2

4

Share

What is the Replacement Cycle and Reason for Car Spark Plugs?

Spark plug replacement cycle: Under normal maintenance conditions, replace after driving 40,000 to 60,000 kilometers. However, this may vary depending on the brand and engine. It is recommended to follow the user manual. The following standards can be referenced for maintenance replacement: Platinum spark plugs should be replaced at 40,000 kilometers, ordinary nickel alloy spark plugs at 20,000 kilometers, and iridium spark plugs at 60,000 to 80,000 kilometers. Damaged spark plugs can cause the following effects: If the spark plug is damaged, it can directly cause issues such as leakage in the vehicle's ignition system, increased fuel consumption, and reduced power. The main problem is difficulty in ignition, affecting the normal use of the vehicle. Severe erosion of the spark plug, blistering or damage at the top of the spark plug, or melted and eroded electrodes all indicate that the spark plug is damaged and should be replaced. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, remove the high-voltage distributor wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure everything is cleaned thoroughly. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the removed high-voltage distributor wires in the ignition order and secure the cover.

15

1

Share

What is a Dry Dual-Clutch Transmission?

Dry dual-clutch refers to a dual-clutch transmission where the clutch plates are not immersed in transmission oil. Dual-clutch transmissions come in two types: wet and dry. In a wet dual-clutch transmission, the clutch plates are submerged in transmission oil. Dual-clutch transmission is a relatively common type of automatic transmission. Advantages of dry dual-clutch: Fast acceleration, strong power, lower energy loss, crisp gear shifts, high transmission efficiency; Disadvantages of dry dual-clutch: Heavy noise, noticeable low-speed jerking, shorter lifespan, prone to overheating. Dual-clutch transmissions are generally referred to as dual-clutch transmissions because they operate through two sets of clutches.

13

2

Share

What are the Frequently Tested Questions in Subject One?

Subject One frequently tested questions include: traffic condition judgment and basic driving knowledge. Traffic condition judgment content: Road traffic safety laws, regulations, and rules. Safe driving knowledge. Safe driving knowledge under conditions such as highways, mountainous roads, bridges, tunnels, nighttime, adverse weather, and complex road conditions. Basic driving knowledge: Emergency handling knowledge for situations like tire blowouts, steering failure, and brake failure. General structure of motor vehicles, common knowledge of main safety devices, basic knowledge of daily inspection and maintenance. Basic knowledge of self-rescue and first aid after traffic accidents, as well as common knowledge of hazardous materials.

12

3

Share

Mercedes-Benz S350 Trunk Fails to Close Automatically

Can insufficient steering wheel return force be adjusted?

What Does a Multi-Function Steering Wheel Mean?

What does 'unlimited years and mileage for the first owner' mean?

What is the Replacement Cycle and Reason for Car Spark Plugs?

What is a Dry Dual-Clutch Transmission?

What are the Frequently Tested Questions in Subject One?

Can the far-right lane with yellow dashed lines be used?

Can All-Season Tires Be Used in Northeast China During Winter?

What Do Car Symbols Indicate for Faults?

Which is brighter, LED or xenon headlights for cars?