How many exam attempts are allowed for B2 Subject 4?

Why is the BMW X3 engine noise loud?

BMW X3 engine noise loud reasons are as follows: 1. Engine reason: The four-cylinder engine uses an N20 engine fuel injector and has an additional high-pressure pump inside the cylinder block, resulting in louder noise. 2. Installed valve: One of the BMW's dual exhaust pipes is equipped with a valve that does not open at low speeds, so the idle speed is high at startup, causing loud noise. This is a normal phenomenon, and the noise will decrease after a dozen seconds. Relevant information about the BMW X3 is as follows: 1. Power aspect: There are three power options available for the 2.0T engine - low, standard, and high. The low power is called 25i, the standard power is 28i, and the high power is 30i. The transmission is uniformly 8AT, and the four-wheel drive system is standard across the entire series. 2. Chassis structure: It features a front double-ball-joint shock absorber suspension and a rear multi-link independent suspension, equipped with an intelligent four-wheel drive system. The central differential is a multi-plate clutch type, adopting a unibody structure.

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Where is the cabin air filter located on a Ford Transit?

The factory Ford Transit does not come with a cabin air filter installed. The reserved installation position for the cabin air filter is at the air conditioning outlet under the front hood of the vehicle. The benefits of installing a cabin air filter are as follows: 1. It ensures the filter fits tightly against the housing. 2. It prevents unfiltered air from entering the cabin. 3. It separates solid impurities such as dust, pollen, and grinding particles from the air. Below is an introduction to the dimensions of the Ford Transit: 1. In terms of transmission: The Ford Transit offers a choice between a 5-speed manual and a 6-speed automatic transmission. 2. In terms of power: The Ford Transit is equipped with a 2.0-liter turbocharged engine, available in both diesel and gasoline versions. 3. Diesel version: Maximum horsepower of 121 hp, maximum power of 89 kW, maximum torque of 300 N·m, and a top speed of 156 km/h. 4. Gasoline version: Maximum horsepower of 202 hp, maximum power of 148.5 kW, maximum torque of 300 N·m, and a top speed of 156 km/h. 5. In terms of body structure: The Ford Transit offers two structures to choose from, a box-type transport vehicle and a multi-purpose commercial vehicle, catering to the needs of different consumer groups.

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Where is the folding button for the Envision's side mirrors?

The BMW 3 Series requires approximately 5.5 liters of engine oil. The specific amount can be checked via the electronic oil dipstick, and the recommended oil grade for the BMW 3 Series is 5W30. Information about engine oil is as follows: 1. Engine oil: (Engine-oil) is the lubricant used by the engine. 2. Composition: It consists of base oil and additives. The performance characteristics of engine oil include: 1. Lubricity: Under various conditions, the ability of engine oil to reduce friction, minimize wear, and prevent metal sintering is referred to as the lubricity of engine oil. The viscosity of engine oil is an important indicator for evaluating lubricity. 2. Low-temperature operability: The performance of engine oil that ensures the engine starts easily and reliably supplies oil under low-temperature conditions is called the low-temperature operability of engine oil. The low-temperature operability of engine oil includes facilitating cold starts and reducing start-up wear. 3. Viscosity-temperature characteristics: The property of lubricating oil to change viscosity with temperature fluctuations is called viscosity-temperature characteristics. Good viscosity-temperature characteristics mean that the oil's viscosity changes minimally with temperature. The effect of temperature on oil viscosity: as temperature increases, viscosity decreases; as temperature decreases, viscosity increases.

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Where is the crankshaft position sensor located on the Passat?

On the side of the engine block. The crankshaft sensor on the Volkswagen Passat is located on the left side of the engine block, where the engine and transmission meet. When the vehicle experiences symptoms such as lack of power, failure to start, or no idle, it is usually caused by a faulty crankshaft position sensor. Here is some information about automotive sensors: 1. Crankshaft position sensor: It detects the crankshaft and engine speed, providing the ECU with a reference signal to determine ignition timing and firing order. 2. The two bolts that secure the crankshaft position sensor to the transmission are specially designed to ensure the correct gap between the sensor and the flywheel. Other bolts should not be used as substitutes for these specially designed bolts.

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Where is the fuse box of a 2007 Volkswagen Polo?

Volkswagen Polo fuses are located at the bottom of the dashboard under the steering wheel and in the engine compartment. Additional information about fuses is as follows: 1. Do not attempt to repair damaged fuses. Multiple electrical devices may share one fuse, and it should be replaced promptly. 2. Never use metal strips, paper clips, or similar items as fuse substitutes, even temporarily. 3. If a damaged fuse is replaced with one that has a higher current rating, other components of the electrical system may be damaged. 4. It is essential to prevent contaminants and moisture from entering an opened fuse box, as dirt and moisture inside can cause damage to electrical components.

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What is the fuel tank capacity of the Tayron?

The Tayron currently has 5 models on sale. Among them, the fuel tank capacity for all two-wheel-drive versions is 60L, while all four-wheel-drive versions have a fuel tank capacity of 63L. These figures are officially released data. All Tayron models require 95-octane fuel. The two-wheel-drive versions have a fuel consumption of 6.7 to 6.8L per 100km, allowing a driving range of 882 to 896km on a full tank. The four-wheel-drive versions consume 7.5L per 100km, providing a range of 840km on a full tank. During daily driving, it's important to regularly monitor the remaining fuel level. This is typically done by observing the fuel gauge inside the vehicle. Under normal circumstances, the gauge accurately reflects the fuel level. Most fuel gauges have 5 to 6 segments, and it's recommended to refuel when only 2 segments remain to avoid running out of fuel mid-journey. During actual refueling, the amount of fuel may exceed the calibrated capacity. This is because automakers specify the tank capacity from the bottom to the safety level, leaving additional space between the safety level and the tank opening. This space accommodates fuel expansion due to temperature increases, preventing overflow. If fuel is filled up to the tank opening during refueling, the actual amount may exceed the specified tank capacity.

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How many exam attempts are allowed for B2 Subject 4?

Why is the BMW X3 engine noise loud?

Where is the cabin air filter located on a Ford Transit?

Where is the folding button for the Envision's side mirrors?

Where is the crankshaft position sensor located on the Passat?

Where is the fuse box of a 2007 Volkswagen Polo?

What is the fuel tank capacity of the Tayron?

Is the Audi Q5L a domestically produced car?

Which side are cylinders 1 and 2 on the Subaru Forester?

Why is the 7th Generation Honda Accord Considered a Classic?

What Causes the Front Wheels to Make Abnormal Noises When Driving Over Speed Bumps?