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What is the model of the Jetta VS5's transmission?

1 Answers
Frederick
07/30/25 10:11am
Jetta VS5 is equipped with the Aisin third-generation 6AT transmission, model code AQ250. Below is some knowledge about transmissions. Functions of a transmission: To alter the gear ratio between the engine and wheels. This allows the engine to operate under optimal conditions, expands the torque and speed transmitted from the engine to the drive wheels, and achieves varying speeds. It enables the vehicle to reverse and includes a neutral setting. Maintenance of transmission structural components: Daily maintenance of the transmission should focus on its structural parts, including gears, bearings, and different shafts. Regularly inspect the transmission gears for wear, chipping, or incorrect meshing. Pay close attention to bearing inspections, noting excessive axial or radial clearance and wear on spacers. Proper care and inspection of internal transmission components ensure optimal operation and timely identification and resolution of issues.
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What are the symptoms of engine cylinder scoring?

Engine cylinder scoring manifests as a significant decrease in air tightness, increased fuel consumption with reduced power, and difficulty starting after stalling. Below is relevant information about engine cylinder scoring: Causes of engine cylinder scoring: Oil issues: Engine oil is the lifeblood of a car. All components in the vehicle require proper lubrication to operate smoothly. The engine oil ensures normal engine operation. If the vehicle isn't maintained on time and the oil isn't changed promptly, friction between engine components will gradually increase. While driving, the piston continuously moves within the cylinder. When the oil loses its effectiveness, the piston will naturally wear down the cylinder wall. Prolonged high-speed operation: The slower the engine piston moves within the cylinder, the less friction it generates. However, during extended high-RPM operation, the engine temperature rises continuously, causing the cooling system to fail. The piston expands due to heat, leading to cylinder scoring. Consequences of engine cylinder scoring: The vehicle's power will noticeably decrease, with some cylinders potentially becoming inoperable. Additionally, oil burning may occur. Repairing cylinder scoring is extremely costly, often requiring replacement or precision machining of piston rings, pistons, and cylinders. Some vehicles have cylinder liners to avoid excessive repair costs from scoring - if damaged, only the liner needs replacement. However, most passenger cars don't have cylinder liners, making repairs extremely complicated and expensive, essentially equivalent to replacing half of the engine.
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What Causes Sudden Inability to Connect to Car Bluetooth?

Car bluetooth suddenly unable to connect due to: 1. Mobile device exceeds the communication range of car bluetooth - solution is to move phone closer to car bluetooth device and reconnect; 2. Incompatibility between phone system and car bluetooth system - solution is to upgrade phone system to new version and reconnect car bluetooth; 3. Unstable factors in electronic devices - solution is to restart phone and retry bluetooth connection; 4. Phone bluetooth has connection records with other devices or too many connection records - solution is to delete unused bluetooth devices and retry connection; 5. Hardware device malfunction.
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How to Repair Yellowed Headlight Covers?

Methods to repair yellowed headlight covers: 1. Use a soft cloth to wipe off the dust on the headlights to prevent accumulation over time. It is essential to use a soft cloth to avoid scratching the car's paint or the headlight covers, which would not be worth it; 2. Clean with alkaline water. Soapy water is a weakly alkaline substance, non-corrosive, gentle in nature, and highly effective for cleaning. Avoid parking the car under direct sunlight for extended periods, as prolonged exposure to the sun can accelerate the yellowing and aging of the headlights. Additionally, refrain from using sharp objects to scratch the headlights, as this can also cause them to yellow and leave marks.
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What do the D, S, L, and R gears of an automatic transmission car mean?

Automatic transmission car D, S, L, and R gears mean: D gear is the forward gear; S gear is the sport mode; L gear is the low-speed gear; R gear is the reverse gear. The automatic transmission means that the driver does not need to manually shift gears, and the vehicle will automatically select the appropriate gear according to the driving speed and traffic conditions. Generally, there are six gear positions on an automatic transmission car, from top to bottom: P, R, N, D, S, L. For an automatic transmission car, using only the parking gear P, reverse gear R, neutral gear N, and forward gear D can fully meet the needs of general driving. If encountering some special driving environments, other functional gears need to be used.
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How to Replace the Battery in a Magotan Car Key?

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Methods to determine if the power steering pump is faulty: First, check if there is any oil leakage from the power steering pump. If the power steering fluid hasn't been replaced for a long time, the probability of the power steering pump being damaged is high. For a mechanical hydraulic power steering system, it is recommended to turn the steering wheel while pressing the accelerator pedal with the vehicle stationary. If the steering wheel becomes noticeably lighter, it indicates an issue with the power steering pump. The power steering pump is a component that helps improve and stabilize a car's performance, primarily assisting the driver in adjusting the vehicle's direction. Currently, all cars are equipped with power steering pumps, mainly including the steering power pump and the brake vacuum power pump. In the current market, power steering systems can be broadly categorized into three types: mechanical hydraulic power steering systems, electro-hydraulic power steering systems, and electric power steering systems.
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