What does 4matic mean on the back of a Mercedes-Benz?

Is a Car Tire Pressure of 150 Normal?

A car tire pressure of 150 kPa is not normal. According to the international GBT2978-2008 standard, the recommended tire pressures for different types of tires are as follows: Standard tires: 2.4-2.5 bar; Reinforced tires: 2.8-2.9 bar; Maximum pressure: Should not exceed 3.5 bar. Tire pressure reset method: First, turn on the ignition, then press and hold the tire pressure monitoring reset button until you hear a "beep" sound before releasing it. The tire pressure monitoring system will then store the current normal tire pressure data, automatically clear the previous data, and finally, the warning light on the dashboard will turn off, indicating the tire pressure reset is complete. There are generally three reasons for abnormal tire pressure: Abnormal tire pressure: Usually, the system will alert when the pressure is below 1.8 bar or above 3.0 bar. In this case, tire inspection and pressure adjustment are required. Tire pressure monitoring not reset: After inflating the tires, if the tire pressure is not reset in time, the tire pressure monitoring system will still record the previous data, causing the tire pressure monitoring indicator light to turn on. Simply performing a tire pressure reset will resolve this issue. Damaged tire pressure sensor: The tire pressure sensor, which is used to monitor tire pressure, is installed inside the tire and connected to the tire inflation valve. If the sensor is damaged during driving, it will also cause the tire pressure warning light to turn on. For sensor damage, the only solution is to replace it with a new one.

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How to Confirm ETC is Working Properly?

To confirm the ETC is working properly, remove the ETC bank card and then reinsert it into the electronic tag. After hearing a beep sound, if the electronic tag screen displays 'Debit Card' or shows the amount, then the ETC is functioning normally. If inserting the ETC card into the electronic tag results in messages like 'Electronic Tag Invalid' or 'No Card Inserted,' it indicates an issue with the electronic tag, requiring reactivation and reinstallation at an ETC service outlet. ETC, short for Electronic Toll Collection, is an electronic system that enables vehicles to pass through toll stations without stopping. It identifies vehicles, records information, and automatically deducts the corresponding funds from a pre-linked IC card or bank account. It is an internationally promoted electronic toll collection system for roads, bridges, and tunnels.

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How to Solve Car Audio Problems?

1. If the car suddenly has no sound, first check if the CD player's power supply is normal. As long as there is power, the indicator light should be on, and the CD player compartment should open and close normally. If there is no power, check the power supply, including the fuse box and wiring. 2. If the car audio has been modified, check the modified fuse or specifically inspect whether the audio output line has come loose. 3. If the audio suddenly stops working and it does not affect the car's operation, you can visit a nearby professional repair shop. Car audio is a radio and playback device installed to alleviate the boredom of drivers and passengers during travel. The earliest used was the car AM radio, followed by AM/FM radios and tape players. Nowadays, car audio has reached a high standard in terms of sound quality, operation, and shock resistance, capable of handling the bumps on rough roads while ensuring stable performance and perfect sound quality.

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How to Follow a Car Slowly for Beginners?

Key points for beginners to follow a car slowly are as follows: 1. Leave space for rolling back on uphill sections: When driving on uphill roads or overpasses and encountering stop-and-go traffic, always leave enough distance to prevent the car in front from rolling back when starting. Pay special attention to overloaded large trucks—it's best not to follow them and to leave a longer-than-normal distance to prevent them from rolling backward. 2. Determine the following distance based on speed: While driving, the faster the speed, the greater the distance between vehicles should be. Generally, the vehicle spacing should roughly equal the speed in kilometers per hour. For example, at 70 km/h, the spacing should be more than 70 meters. If the road ahead is clear and you can observe the traffic conditions well, you can slightly reduce the distance to a point where other vehicles can't easily cut in. 3. Follow slowly in crowded areas: During long-distance driving, maintain a good rhythm and take breaks. When passing through towns, especially crowded roads, it's best to follow a large vehicle slowly and relax. In heavy fog with poor visibility, if there's a car ahead, follow it and avoid overtaking just because it's moving slowly. 4. Increase spacing when following a large vehicle: Small cars following large vehicles are more affected by the leading car, so increase the spacing appropriately and closely monitor the leading car's movements. When following a bus in busy urban areas, be patient. If overtaking is necessary, observe the situation from a distance to ensure no sudden appearance of pedestrians or cyclists during the maneuver. 5. Stay calm while following: During following, if pedestrians or non-motorized vehicles cut in, remain patient and avoid frustration. Especially at crosswalks, actively yield to pedestrians to demonstrate good professional ethics.

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How Soon Can a New Car Go on the Highway?

New cars can go on the highway at any time. Newly purchased cars have a break-in period, during which the car can drive at high speeds as long as the engine is not operated at excessively high RPMs. Running the engine at high RPMs during the break-in period can increase engine wear. When driving on the highway, the following points should be noted: 1. Maintain a safe distance from the vehicle in front and avoid getting too close; 2. Drive in the appropriate lane—faster vehicles should stay in the fast lane, while slower ones should use the slow lane; 3. In case of an emergency on the highway, park the vehicle in the emergency lane, turn on the hazard warning lights, and place a warning sign 150 meters behind the car; 4. Private vehicles are prohibited from using the emergency lane for driving. Maintaining a safe distance while driving is the best preventive measure to effectively avoid traffic accidents on the highway.

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How to Solve the Problem of Fast Blinking Turn Signals?

Turn signals blinking too fast can be resolved by: 1. Checking if the flasher relay is functioning properly. Use a multimeter to measure the output line of the flasher relay to see if there is a 12v output; 2. Inspecting the bulb and its socket for poor contact; 3. Verifying if the bulb's wattage is too high, and replacing it with one that meets specifications. Turn signals are a fundamental component of a vehicle's safety functions and play a crucial role in safe driving. Therefore, during maintenance and care of turn signals, pay attention to: 1. Avoiding low-quality bulbs, as the performance of the bulb is vital since it affects usage effectiveness and driving safety; 2. Performing regular maintenance. If the brightness of the lights is insufficient or they are damaged, replace or repair them promptly; 3. Conducting routine checks. During annual inspections, the performance and condition of the lights will be tested.

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What does 4matic mean on the back of a Mercedes-Benz?

Is a Car Tire Pressure of 150 Normal?

How to Confirm ETC is Working Properly?

How to Solve Car Audio Problems?

How to Follow a Car Slowly for Beginners?

How Soon Can a New Car Go on the Highway?

How to Solve the Problem of Fast Blinking Turn Signals?

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