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What Are Front and Rear Parking Sensors?

1 Answers
StSabrina
07/30/25 10:01am
Front and rear parking sensors are parking assistance devices. Front parking sensors refer to the sensors installed at the front of the vehicle, with probes mounted on the front bumper. These probes radiate at approximately a 45-degree angle to detect objects in all directions. Rear parking sensors have probes installed on the rear bumper, which can detect obstacles below the bumper that are difficult for the driver to see from inside the car, such as flower beds or playing children, and issue an alert. When the gear lever is shifted into reverse, the parking sensors automatically activate. If the probes detect an object behind the vehicle, a buzzer will sound a warning. As the vehicle continues to reverse, the frequency of the alarm sound will gradually increase, eventually turning into a continuous tone.
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More Forum Discussions

How many cylinders does the Audi RS5 engine have?

Audi RS5 is equipped with a six-cylinder engine. Below is a detailed introduction to the Audi RS5: 1. The new Audi RS5 Sportback and Coupe models are powered by a new 2.9T twin-turbocharged V6 engine. After recalibration, the maximum power output reaches 450 horsepower, with a peak torque of 600 N·m. The transmission system is paired with an 8-speed automatic manual transmission and the quattro all-wheel-drive system. With this powertrain, the official 0-100km/h acceleration time is 3.9 seconds. 2. The Audi RS5 has a ground clearance of 110mm. A lower ground clearance provides stable handling at high speeds but reduces the vehicle's off-road capability. Only vehicles equipped with air suspension have the automatic ground clearance adjustment function, which can well meet the needs of different road conditions. 3. In terms of suspension, the front suspension of the Audi RS5 adopts an upgraded five-link design, and the rear suspension has also been changed from the previous trapezoidal link design to a five-link design, which helps improve handling.
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How to set up the Avalon radio?

To set up the Avalon radio, first enter FM mode, select presets, then click scan to search. When you find a station you want to keep, press the scan button again to stop the search. Then, press and hold any preset button for 3 seconds to replace the original preset with your desired station. Below is a detailed introduction to the Avalon radio: 1. The most direct way to turn off the car radio is to switch off the audio system on the center console. Of course, you can also switch to other audio modes, with the toggle usually located on the center console. Some models also allow operation via remote combination switches on the steering wheel or icons on the touchscreen interface. 2. Whether it's an aftermarket or factory-installed car radio, after prolonged use, signal reception will inevitably degrade. Even with a signal amplifier installed, the improvement may not be significant. In such cases, you should check if there's any issue with the antenna. If not, the problem likely lies with the aging radio tuner, as it directly affects the signal source.
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How to Deal with High Fuel Consumption of Changan Eado?

The comprehensive fuel consumption of the Eado is 5.6-5.8L/100km. There are currently 6 models of the Eado 2021 available for sale, including the Blue Whale NE Flagship and Blue Whale NE Premium models, with a comprehensive fuel consumption of 5.6L/100km. The manual luxury and manual elite models have a comprehensive fuel consumption of 5.7L/100km. The CVT elite and CVT luxury models have a comprehensive fuel consumption of 5.8L/100km. The above figures are the NEDC comprehensive fuel consumption, which is the fuel consumption data measured under the NEDC test procedure. The actual fuel consumption is higher than this value, ranging from 7.47-9.81L/100km. The specific factors affecting car fuel consumption are as follows: Car weight: Larger and heavier cars tend to consume more fuel. Generally, a small family car with a 1.6L engine and a weight of around 1.2 tons has a fuel consumption of about 7.5 liters (calculated under full load), while an SUV model weighing around 1.5 tons has a fuel consumption of 8.5 liters. Different weights lead to different fuel consumption levels. Wind resistance: Higher wind resistance increases fuel consumption during driving. Cars with better aerodynamics have lower wind resistance and consequently lower fuel consumption. Economical RPM: The engine has an optimal torque output point during driving. Maintaining the car's speed within this torque output point can significantly reduce fuel consumption. Generally, small-displacement cars achieve this at around 70 km/h, while larger-displacement cars do so at about 100 km/h. Staying within this economical RPM range ensures minimal fuel consumption. Driving style: Aggressive driving behaviors such as sudden acceleration, frequent overtaking, and not easing off the throttle before a red light can increase fuel consumption.
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How to adjust the date on Passat Lingyu?

To adjust the time on the dashboard of the Passat Lingyu, locate the buttons on both sides of the dashboard. The right button is for time adjustment; pressing it once increases the value until the correct time is set. Then press the left button twice; this button is for minute adjustment. Adjust the value until the correct minute is set. After adjustment, press the left button once to complete the dashboard time setting. Here is more information about the Passat Lingyu: 1. The Passat Lingyu is an upgraded series based on the Shanghai Volkswagen Passat B5, officially launched on November 24, 2005. The overall dimensions of the Passat Lingyu are slightly increased in length and width compared to the B5. The interior features an added fuel tank cap on the left front door (the B5 design placed it next to the handbrake) and a remote trunk button. 2. The B-pillar inside the car has added a clothes hook, and the previously bare rear center armrest in the B5 now includes a more practical storage box. The most significant improvement for rear comfort is the aesthetically pleasing and functional design of the rear air conditioning vents.
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How to Turn on the Air Conditioning in a Geely Emgrand Sedan?

To turn on the air conditioning in a Geely Emgrand, first switch on the fan control, then turn the temperature knob to the blue (cooling) zone, and finally press the AC button. Below is a detailed introduction to the Geely Emgrand: 1. The Geely Emgrand (simply called Emgrand) is a sub-brand under the Geely parent brand. The new Geely Emgrand was launched on July 26, 2014, equipped with a 1.3T GeTec DVVT turbocharged engine, delivering a maximum power of 98kW. The turbo engages at 1800 rpm and reaches peak torque of 185Nm at 2000 rpm. Its power-to-weight and torque-to-weight ratios are higher than those of comparable 1.5T engines, with performance close to that of a 2.0L naturally aspirated engine. 2. Brand Introduction: The Emgrand brand represents both continuity and innovation for Geely. Its emblem design exudes elegance and a strong international appeal, effectively shedding the historical baggage of the Geely brand while preserving its inherent cultural strengths. The dignified and noble emblem embodies the brand's commitment to excellence, stability, and prestige—EMGRAND symbolizes "Excellence, Steadfastness, and Esteem."
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What are the consequences of deformed steering knuckle bolts?

Deformation of the automobile steering knuckle (commonly known as the "sheep horn") can lead to abnormal front tire wear, poor steering return, easy damage to wheel bearings, and abnormal body noises. Below are relevant details: 1. Introduction: The automobile steering knuckle arm, colloquially called the "sheep horn," is one of the main components in the vehicle's steering system. It ensures stable driving and sensitive transmission of the driving direction, with the function of bearing the front load of the car, supporting and driving the front wheels to rotate around the kingpin for steering. 2. Function: During vehicle operation, it endures variable impact loads, thus requiring high strength. The steering knuckle serves as the hinge for wheel steering, typically shaped like a fork. The upper and lower forks have coaxial holes for installing the kingpin, and the steering knuckle journal is used to mount the wheel. The two ears with pin holes on the steering knuckle connect to the fist-shaped parts at both ends of the front axle via the kingpin, allowing the front wheels to pivot around the kingpin at a certain angle for steering. To reduce wear, bronze bushings are pressed into the steering knuckle pin holes, lubricated by grease injected through a grease nipple on the steering knuckle. For flexible steering, a bearing is installed between the lower ear of the steering knuckle and the fist-shaped part of the front axle.
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