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Are German Cars Noisier Than Japanese Cars in Terms of Engine Noise?

1 Answers
SanEllie
07/28/25 2:57pm
The reasons for loud engine noise in cars are as follows: Weather Conditions: Cold weather can cause the engine idle speed to increase. When the engine remains at high RPM while cold, it may feel like the engine noise is louder, which is a normal phenomenon. Loose Plastic Components in the Engine Compartment: For example, the engine cover or intake pipe may be loose and need tightening. Noises from engine belts, including power steering belts and alternator belts, can occur if they are aged, too loose, or too tight. Replace or adjust the tension as needed. Incorrect Engine Oil Condition: Engine oil is crucial for lubrication. Issues with the oil can affect engine performance. If the oil viscosity is too high, it can cause operational problems, reduce lubrication efficiency, and lead to increased friction and noise during engine operation.
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More Forum Discussions

How to Replace the Battery in a Mazda Key?

To replace the battery in a Mazda key, follow these steps: 1. Open the key head; 2. Inside the key slot, there is a black square. Use an appropriate tool to press firmly on that point; 3. While pressing, pull apart the upper part of the key to separate it; 4. Once separated, remove the old battery and insert the new one. Mazda's lineup includes models such as the Atenza, Mazda CX-4, Mazda6, Ruiyi, and Mazda CX-5. Taking the 2020 Atenza as an example, it is a mid-size sedan with the following dimensions: length 4870mm, width 1840mm, height 1445mm, wheelbase 2830mm, fuel tank capacity 56.2 liters, and curb weight 1518kg.
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Does Mini have rear-wheel drive models?

Mini does not have rear-wheel drive models. Most of its models are front-wheel drive, and there are also all-wheel drive models. The all-wheel drive vehicles are equipped with an on-demand all-wheel drive system. Cars with this all-wheel drive system primarily operate as front-wheel drive most of the time, and the rear wheels only receive power when the front wheels slip or under certain special road conditions. Mini's model lineup includes: Mini JCW, Mini Countryman, Mini Clubman, Mini Coupe, Mini Paceman, etc. Taking the 2021 Mini Clubman as an example, it is a compact car with body dimensions of 4263mm in length, 1800mm in width, 1479mm in height, and a wheelbase of 2670mm. The 2021 Mini Clubman is equipped with a 1.5T inline 3-cylinder turbocharged engine, delivering a maximum horsepower of 102 PS, a maximum torque of 190 Nm, and a maximum power output of 75 kW.
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What does the driving license test subject 3 include?

Driving license test subject 3 includes: preparation before driving, starting, driving straight, gear shifting operations, changing lanes, going straight through intersections, passing pedestrian crossings, passing bus stops, passing school zones, turning left at intersections, turning right at intersections, meeting vehicles, overtaking, making U-turns, parking by the roadside, and night driving. Subject 3 is a component of the motor vehicle driver's license assessment and is the abbreviation for the road driving skills and safe civilized driving knowledge test. The motor vehicle driving test is an examination to obtain a motor vehicle driver's license, adopting nationally unified test content and passing standards. The test is divided into four parts across three subjects: theoretical knowledge, field driving skills, road driving skills, and civilized driving-related knowledge, with corresponding test items specified according to different permitted driving vehicle types.
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What is the actual fuel consumption of the Honda CR-V 2.0?

The combined fuel consumption of the Honda CR-V 2.0 is 4.9-5.6L/100km. Currently, there are 8 models of the Honda CR-V 2.0 available for sale. The fuel consumption for the two-wheel-drive Jingxing, Jingsu, and Jingchi versions is 4.9L/100km. The two-wheel-drive Jingheijueshi and Jingzhi versions have a fuel consumption of 5.2L/100km. The four-wheel-drive Jingcheng version consumes 5.4L/100km, while the four-wheel-drive Jingheijueshi and Jingxiang versions consume 5.6L/100km. The above figures are the NEDC combined fuel consumption, which is the fuel consumption data measured under the NEDC test procedure. The actual fuel consumption is higher than these values, ranging from 4.9-5.9L/100km. The fuel consumption of a car is directly related to five major factors: driving habits, the car itself, road conditions, natural wind, and environmental temperature. Specific factors that can increase fuel consumption include: Driving habits: Aggressive driving, such as sudden acceleration, frequent overtaking, and not easing off the throttle before a red light, can increase fuel consumption. The car itself: Cars with larger engine displacements generally consume more fuel than those with smaller displacements because larger displacements usually mean higher power output, requiring more gasoline to burn and perform work. Heavier cars also consume more fuel because greater weight requires more driving torque. Road conditions: Driving on dirt roads, muddy roads, soft surfaces, or mountainous roads increases resistance and fuel consumption. Natural wind: Driving against the wind or on windy days increases the car's resistance and fuel consumption. Low environmental temperatures: When the engine block is cold, the injected gasoline does not vaporize easily during a cold start, requiring more gasoline to burn, which increases fuel consumption. Additionally, in low temperatures, the engine's computer may control the engine to run at higher RPMs to warm up, which also increases fuel consumption.
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What are the components of the Traction Control System?

The components of the Traction Control System are: 1. Wheel speed sensor; 2. Electronic control unit; 3. Brake pressure regulator; 4. Sub-throttle and throttle position sensor; 5. Warning device. The functions of the Traction Control System are: 1. Preventing the driving wheels of the car from slipping during acceleration; 2. Maintaining the driving stability of the car. The working principle of the Traction Control System is: During the driving process of the car, the ABS or ASR electronic control unit determines the slip rate of the driving wheels and the reference speed of the car by calculating, analyzing, and comparing the wheel speed signals sent by each wheel speed sensor. The ABS or ASR electronic control unit adjusts the slip rate of the driving wheels by controlling the opening of the sub-throttle and the brake pressure regulator.
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What engine does the GAC Trumpchi GS4 use?

The engine of the GAC Trumpchi GS4 is independently developed and produced by GAC Motor Co., Ltd., and is a domestically manufactured engine. The engine model of the GAC Trumpchi GS4 is A415J1, with a maximum power of 124 kW, a maximum torque of 265 Nm, and a maximum horsepower of 169. For daily maintenance of the GAC Trumpchi GS4 engine, the following methods can be used: Use lubricating oil of appropriate quality grade. For gasoline engines, SD--SF grade gasoline engine oil should be selected based on the additional devices of the intake and exhaust systems and usage conditions; for diesel engines, CB--CD grade diesel engine oil should be selected according to mechanical load, with the selection standard not lower than the manufacturer's specified requirements. Regularly change the oil and oil filter. The quality of any grade of lubricating oil will change during use. After a certain mileage, the performance deteriorates, which can cause various problems for the engine. To avoid failures, the oil should be changed regularly based on usage conditions, and the oil level should be kept moderate. When oil passes through the fine holes of the filter, solid particles and viscous substances in the oil accumulate in the filter. If the filter is clogged and the oil cannot pass through the filter element, the filter element may burst or the safety valve may open, allowing oil to bypass through the bypass valve, bringing contaminants back to the lubrication area and accelerating engine wear, increasing internal contamination. Regularly clean the crankcase. During engine operation, high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the crankcase through the gap between the piston rings and cylinder walls, mixing with metal particles from component wear to form sludge. A small amount remains suspended in the oil, while a large amount precipitates, clogging filters and oil passages, making engine lubrication difficult and causing wear. Regularly use radiator cleaner to clean the radiator. Removing rust and scale not only ensures the engine operates normally but also extends the overall lifespan of the radiator and engine.
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