How to Use Cruise Control in BMW 3 Series?

How long does it take to fully charge a car battery when it's dead?

When a car battery is dead, using the vehicle's alternator to fully charge it requires maintaining an engine speed of over 2000 RPM, and the car needs to be driven for at least 4 hours. If the engine speed cannot reach 2000 RPM, the charging time will be even longer. Car battery maintenance methods: Do not use in-car electrical equipment for extended periods when the engine is off; avoid repeatedly starting the vehicle; refrain from using external power devices when the engine is off; remember to turn off lights after parking; do not leave the car unused for long periods. Reasons for a dead car battery: Extended parking leading to battery discharge; battery reaching the end of its service life; insufficient battery electrolyte or leakage.

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How to adjust the valves of Weichai P12?

You can start by counting from the rear of the engine: 1, 2, 3, 6, 7, 10, then rotate one turn to adjust 4, 5, 8, 9, 11, 12. The valve clearance is 40 for intake. The adjustment sequence is from the first cylinder to the sixth cylinder, adjusted in order. After adjusting the first cylinder, proceed to adjust the remaining ones. Below are the detailed steps for adjusting the valves of Weichai P12: 1. Rotate the engine to position the first cylinder piston at the top dead center of the firing position. 2. Adjust the intake valves of cylinders 1, 2, and 4. Loosen the intake valve lock nut and the intake valve adjustment bolt. Insert a 0.40mm feeler gauge between the valve bridge and the adjustment screw. 3. Rotate the adjustment screw to set the clearance to (0.40±0.06)mm, then tighten the lock nut using a torque wrench to a torque of (45±5) N·m. 4. Loosen the EVB bracket lock nut. 5. Rotate the EVB bracket adjustment screw to compress the small piston until it is fully depressed (be careful not to open the valve). 6. Insert a 0.60mm feeler gauge between the exhaust valve adjustment screw and the middle plane of the valve bridge. Adjust the exhaust valve clearance and lock screw to set the exhaust valve clearance to (0.60±0.06)mm. Tighten the adjustment nut to a torque of (45±5) N·m. 7. Finally, repeat the above steps to adjust the intake valve clearances of cylinders 3, 5, and 6, and the exhaust valve clearances of cylinders 2, 4, and 6.

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What are the must-have items for a new car?

Must-have items include a dash cam, sunshade, temporary parking sign, and a jack. Below is an introduction to purchasing a new car: 1. Materials: Provide relevant documents and apply for a parking space permit. Individuals need to provide an ID card; companies need to provide a corporate legal person code certificate, and state-owned units also need to provide a "control office" quota. 2. Location: Local relevant regional departments. 3. Process: After the owner selects the car model and pays the purchase price, the dealer will provide the manufacturer's vehicle quality certificate and a three-day vehicle movement permit, and issue a purchase invoice. When issuing the purchase invoice, the owner needs to provide their name and ID number.

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What Causes Abnormal Noise in Motorcycle Electric Start?

Motorcycle starting abnormal noise is caused by: damaged spark plug, weak battery, obstructed fuel flow, long-term dirty fuel management. Correct method for motorcycle starting: Use the main stand to support the motorcycle on level ground; Stand in the direction of the kick starter pedal - if the pedal moves forward, face forward when stepping on it; if the pedal moves backward, face backward when stepping on it. Precautions for long-term motorcycle storage: Drain fuel from the tank and carburetor; Remove the battery and charge it every 3 months; Inflate tires to proper pressure; Clean the vehicle and wipe off excess water before storage; Apply wax treatment to prevent paint scratches.

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Where to Check the Tire Pressure Monitoring on Borgward BX5?

The tire pressure monitoring system in Borgward BX5 is indicated by a semi-enclosed exclamation mark on the car dashboard. Currently, tire pressure monitoring systems are mainly divided into two categories: indirect tire pressure monitoring and direct tire pressure monitoring. Direct tire pressure monitoring is further classified into built-in and external types. Hazards of Low Tire Pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Causes the steering wheel to feel heavy and prone to deviation, among other factors detrimental to driving safety; Increases the movement of various parts of the tire, causing abnormal heating due to excessive rolling; Reduces the functionality of the cords and rubber, leading to delamination or cord breakage, and excessive friction with the rim causing damage to the bead area and abnormal wear; Multiplies the friction between the tire and the ground, sharply increasing tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may result in a tire blowout; Increases tire body deformation, making the tire side prone to cracks, and generates excessive heat due to flexing, accelerating rubber aging, fatigue of the cord layer, and cord breakage. It also increases the tire's contact area with the ground, accelerating shoulder wear. Hazards of High Tire Pressure: Reduces tire friction and adhesion, affecting braking performance; Causes steering wheel vibration and deviation, reducing driving comfort; Accelerates wear on the central tread pattern, shortening tire lifespan; Increases vehicle vibration, indirectly affecting the lifespan of other components; Overextends the tire cords, reducing tire elasticity and increasing the load on the car during driving; Decreases puncture resistance. When encountering sharp objects like nails or glass on the road, they can easily penetrate the tire, causing internal cracks and blowouts.

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What Are the Harms of Gasoline Additives?

Gasoline additives do not have any harms. The functions of gasoline additives: Gasoline additives, abbreviated as fuel additives, are designed to compensate for the inherent quality issues of fuel and the limitations in automotive mechanical manufacturing. They help gasoline engines overcome cold start effects and crevice effects, and remove carbon deposits from intake valves and fuel injectors. Types of gasoline additives: Fuel additives are categorized into four types: cleaning, maintenance, octane number adjusting, and comprehensive. Cleaning additives are used to prevent issues such as poor fuel supply, engine shaking, unstable idle speed, increased fuel consumption, and poor acceleration.

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How to Use Cruise Control in BMW 3 Series?

How long does it take to fully charge a car battery when it's dead?

How to adjust the valves of Weichai P12?

What are the must-have items for a new car?

What Causes Abnormal Noise in Motorcycle Electric Start?

Where to Check the Tire Pressure Monitoring on Borgward BX5?

What Are the Harms of Gasoline Additives?

Why can't the Audi car connect to the internet?

What to Do When There's Noise When Braking?

What is the Basic Principle of Pure Electric Vehicles?

What is the Calculation Method for Vehicle Purchase Tax?