How is the durability of General Motors' variable cylinder engine?

What Does the First Maintenance Include?

The first maintenance at a 4S shop includes the following aspects: changing the engine oil and oil filter, cleaning the air filter; checking the levels of various fluids to ensure they are normal, inspecting the generator belt and wiper blades for any damage; checking tire pressure for normalcy and examining tires for uneven wear, bulges, or damage; inspecting the chassis, including brake pads, brake discs, connecting rods, ball joints, CV joints, and any scratches; checking all switches in the vehicle; ensuring all lights are functioning properly. Estimated time: Completing all tasks takes approximately 2 hours. Items needed for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice. The first maintenance should be performed at the designated service center. Important note: Make an appointment with the 4S shop in advance. The first maintenance refers to the initial service after a new car has been driven. The specific timing varies by vehicle, generally after driving 1,000 to 3,000 kilometers. It is crucial to attend the first maintenance on time, neither earlier nor later. Completing the first maintenance marks the end of the car's break-in period, allowing it to be driven under standard load and normal speed as required by the vehicle. The first maintenance period is calculated from the date of vehicle pickup. There are two indicators for the first maintenance: mileage and time. Whichever comes first will be the standard. Here are the essential inspections and replacements that must be completed during the first maintenance of a new car: changing the engine oil and cleaning the three filters (oil filter, fuel filter, and air filter); checking the coolant level to ensure it is normal; inspecting the brake fluid and clutch fluid levels; verifying the power steering fluid level and checking for any leaks at the oil pipe connections; examining the generator, air conditioning, water pump, and belts for aging and tension; checking tire pressure and wear condition, inflating tires as needed, or performing tire rotation if wear is detected. When changing the engine oil, the oil filter must also be replaced. The choice of engine oil must refer to the "Vehicle User Maintenance Manual," as different vehicle models require different oil specifications. Maintenance precautions: Do not rinse the interior of the car with water: Many people clean their cars during holidays, using water to wash the body and wiping it with a cloth. It is important to note that the interior should not be directly washed with water. If the floor mats are dirty, use a vacuum cleaner or remove them, scrub with a brush and detergent, dry them, and then put them back. The rubber mats under the driver's floor have many drainage holes. Water entering these areas will not dry naturally but may flow through the holes to corrode components like the gearbox. The best practice is to use a vacuum cleaner for cleaning, followed by wiping with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: If the antifreeze level is low, it is recommended to drain the existing antifreeze and refill it with the same brand. Different brands of antifreeze have varying chemical properties, and mixing them may cause corrosion. Always use the same brand to avoid unnecessary issues. Do not lubricate tire bolts and nuts: When bolts on a car rust, some people apply oil to make them functional again. However, lubricating wheel bolts and nuts can pose safety risks. At high speeds, lubricated bolts and nuts may loosen or even fall off, leading to driving hazards. Do not press the accelerator when starting an EFI (Electronic Fuel Injection) car: EFI cars differ from conventional vehicles. Their fuel injection control system can automatically adjust the fuel supply based on the engine's temperature and operating conditions, ensuring a smooth start.

3

2

Share

Which Car Color is the Safest?

White cars are the safest. This is related to white's high reflectivity of light and ease of identification. Here are some relevant introductions about cars: 1. From a safety perspective: Cars with colors that have good visibility, such as red, yellow, and white, are preferable. Colors with poor visibility, like blue, green, and black, have relatively lower safety. 2. Car maintenance considerations: Cars generally require maintenance every 5,000 kilometers or six months, and attention should be paid during maintenance. Engine oil plays a role in lubrication, cooling, etc., and is crucial for the normal operation of a car's engine.

10

1

Share

What to Do When Mercedes-Benz Battery Level is Critical?

When the battery level of a Mercedes-Benz is critical, you can start the engine and drive for a while to allow the alternator to charge the battery. Alternatively, you can take the vehicle to a professional repair shop or a 4S store to charge the battery using an external charger. The reasons for a Mercedes-Benz battery reaching a critical level include: 1. Frequent short-distance driving, which often leaves the battery in an undercharged state; 2. Excessive power consumption due to unauthorized vehicle modifications; 3. Electrical leakage caused by vehicle malfunctions; 4. The battery has reached the end of its service life. Mercedes-Benz is a German luxury car brand, with models including the Mercedes-Benz E-Class, S-Class, A-Class, V-Class, and GLS.

18

1

Share

At what speed can cruise control be used?

When the speed reaches above 40 kilometers per hour, cruise control can be set. The steps are: press the "On/Off" button, then briefly press the "Set" button, and the car will enter cruise control mode. At this point, you only need to steer the wheel, and you can release the accelerator and brake pedals. The vehicle will maintain the set speed. To decelerate while maintaining cruise control, press the "Set" button, and the speed will decrease in increments of 1.6 kilometers per hour until the button is released. The function of cruise control is to automatically maintain the speed set by the driver without the need to press the accelerator pedal, allowing the vehicle to travel at a constant speed. Using this device during long-distance driving on highways eliminates the need for the driver to control the accelerator pedal, reducing fatigue and unnecessary speed fluctuations, which can also save fuel.

11

3

Share

What are the tips for driving a manual transmission?

Tips for manual transmission: 1. Starting technique: When starting, press the clutch pedal all the way down with your left foot and shift into first gear, place your right foot lightly on the accelerator, slowly release the clutch while simultaneously releasing the handbrake and gently pressing the accelerator for a smooth start; 2. Traffic light technique: When approaching a traffic light, judge in advance. If the green light starts flashing when you are 200-300 meters away, shift into neutral and coast to the intersection to wait for the red light. This not only saves fuel but also takes better care of the brakes; 3. Hill start technique: Before releasing the clutch on an uphill, give some throttle first, known as 'double acceleration.' After the first acceleration, lift the clutch while listening for changes in the engine sound. When the sound changes, hold your left foot steady and accelerate again. Slowly releasing the handbrake and stabilizing your left foot are key to ensuring a smooth start.

15

4

Share

How to Solve the Issue of Driver Airbag Resistance Being Too High?

Methods to address excessively high resistance in the driver airbag: 1. Check for open circuits: When poor wire harness connections cause an open circuit, the system will indicate excessively high resistance; 2. Use computer diagnostics: Employ a computer to read and determine which airbag has excessively high resistance, then inspect the corresponding wire harness connectors for looseness; 3. Inspect the airbag internals: Check if the airbag connector is loose. If it is secure and unobstructed, the issue likely lies within the main airbag; 4. Check the airbag clock spring: Examine the wiring beneath the airbag to determine if the clock spring is damaged; 5. Inspect the airbag module: If the fault code indicates excessive resistance in the airbag control unit, it is usually caused by an open circuit in the two wires of the airbag module. Damage to the airbag reset ring is more likely to cause resistance faults in the airbag module.

13

3

Share

How is the durability of General Motors' variable cylinder engine?

What Does the First Maintenance Include?

Which Car Color is the Safest?

What to Do When Mercedes-Benz Battery Level is Critical?

At what speed can cruise control be used?

What are the tips for driving a manual transmission?

How to Solve the Issue of Driver Airbag Resistance Being Too High?

Which Year's Cars Are China 5?

Is Taiwan left-hand or right-hand traffic?

What is an AT Transmission?

What Causes a Burnt Smell from the Car Air Conditioner?