Are Both Mercedes-Benz and Audi Owned by Volkswagen?

What is the actual speed when Gaode shows 115 km/h?

When a car is moving at a speed of 115 kilometers per hour, the actual speed may fluctuate between approximately 114 to 116 kilometers per hour. Here is some information about car navigation: 1. Function: As a tool for daily commuting, navigation serves purposes such as route planning, speed measurement, and traffic violation alerts. 2. Working Principle: Navigation typically uses real-time GPS satellite signals for positioning and speed measurement, or in other words, it locates the vehicle wirelessly. This means that sometimes these positioning signals may have errors, which are generally acceptable within a range of 1 kilometer per hour.

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Why does the DMV withhold the green book?

The DMV only needs to withhold the green book when the vehicle is mortgaged to a bank, and it will be held until the loan is fully repaid. Below is additional information: 1. Green book: The green book refers to the 'Motor Vehicle Registration Certificate.' It is called the green book because of its green color. 2. Motor Vehicle Registration Certificate: The Motor Vehicle Registration Certificate serves as proof of ownership for the motor vehicle and must be kept by the vehicle owner. It should not be carried in the vehicle, and if lost, it can be reissued. This certificate is required when handling procedures such as vehicle transfer, ownership change, or registration modification. It records all transactions related to the vehicle, etc.

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What are the pros and cons of buying a car in another location for registration?

Here are the pros and cons of buying a car in another location for local registration: 1. Pros: For some cities with license plate restrictions, users without a quota cannot register their cars locally and may need to go to another location to obtain a license plate. 2. Cons: (1) After-sales issues: Since the new automotive three-guarantee law clearly states that the seller is responsible, if there is a problem with the car, or even if it involves returning or exchanging the car, the buyer must return to the place of purchase, increasing the difficulty and cost of rights protection. (2) Road risks: Buying a car in another location increases the risks on the road. If an accident occurs and the new car insurance has not yet taken effect, it can cause certain troubles.

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What is the penalty for changing lanes without signaling on a dashed line?

Failure to use turn signals under specified circumstances results in a 1-point deduction and a fine ranging from 20 to 200 yuan. If a driver accumulates 12 points within a scoring cycle, the traffic management department of the public security authority will impound their motor vehicle driving license. The driver must then participate in road traffic safety laws and regulations training and undergo an examination as required. Below are the correct methods for safe lane changing: 1. Observe the rearview mirror of the intended lane: Check the rearview mirror in the direction you plan to change lanes, primarily to assess the density of vehicles in that lane. If there are many vehicles, especially if one flashes high beams, you should refrain from changing lanes. 2. Use turn signals: When preparing to change lanes, immediately activate the turn signal while checking the rearview mirror. On highways where speeds are high, signaling in advance alerts following vehicles. After signaling, wait a few seconds to confirm the safety of the intended lane before gently steering to change lanes. Avoid making abrupt steering movements when changing lanes.

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What is the Difference Between DOT4 and DOT3 Brake Fluid?

DOT4 performs better than DOT3, especially in terms of high-temperature performance. The equilibrium reflux boiling point of DOT4 is 230°C, while that of DOT3 is 205°C. Vehicles using DOT4 brake fluid can brake more frequently. Additionally, their compositions differ, as detailed below: DOT3 is typically glycol-ether-based. The chemical components of glycol-ether brake fluid are polyglycol or propylene glycol. Polyglycol or propylene glycol has strong hygroscopicity, so its water content gradually increases during use or storage. Since the boiling point of brake fluid decreases as water content increases, its braking performance declines accordingly. If you find that you need to press the brake pedal harder to stop, a likely reason is that the brake fluid has excessive water content. Brake fluid should generally be replaced every two years. DOT4 is typically ester-based. Ester-based brake fluid is made by adding a large amount of borate ester to glycol-ether. Borate ester is formed through the esterification reaction of polyglycol or propylene glycol with boric acid. Borate ester has a higher boiling point than polyglycol or propylene glycol, resulting in better braking performance. Borate ester also has strong moisture resistance, as it can decompose absorbed water, thereby slowing the boiling point decline caused by water absorption. Thus, ester-based brake fluid performs better than glycol-ether-based brake fluid and is also more expensive. According to GB12981-2003 "Motor Vehicle Brake Fluid," brake fluids are classified into HZY3, HZY4, and HZY5, corresponding to DOT3, DOT4, and DOT5 internationally. Precautions for Using Automotive Brake Fluid: If gasoline, diesel, or engine oil is accidentally mixed into a synthetic brake fluid system, the incompatibility between the fluids can reduce braking effectiveness. For vehicles driven normally for 40,000 kilometers or with brake fluid used continuously for over two years, the brake fluid may deteriorate due to prolonged use, so timely replacement is essential. For vehicles equipped with a brake fluid level warning device, always monitor whether the warning light is flashing and whether the sensor is functioning properly. When brake fluid is low, it should be replenished promptly. Stored brake fluid should be kept between the marked minimum and maximum capacity levels. If the braking force becomes inconsistent during normal driving, the brake fluid should be replaced immediately. Before replacement, clean the braking system with alcohol. If the vehicle pulls to one side during braking, conduct a comprehensive inspection of the braking system. If the wheel cylinder rubber cup is excessively swollen, it may indicate poor-quality brake fluid. In this case, replace it with high-quality brake fluid and also replace the rubber cup. During seasonal changes, especially in winter, if braking performance declines, the brake fluid grade may not be suitable for winter conditions. When replacing brake fluid, choose a fluid with lower viscosity at low temperatures. Do not mix different types or brands of brake fluid. For braking systems with special requirements, use the specified brand of brake fluid. Since different brands and types of brake fluid have varying formulations, mixing them can degrade performance. Even brands labeled as compatible or interchangeable may not perform satisfactorily, so avoid long-term use of mixed fluids. If water is mixed into or absorbed by the brake fluid, or if impurities or sediment are found, replace or thoroughly filter the fluid promptly. Otherwise, it may lead to insufficient braking pressure and affect braking performance. Replace brake fluid regularly: The volume of brake fluid changes with temperature, so the brake fluid reservoir has a vent hole. Air drawn in through this hole may contain moisture or impurities, which can be absorbed or dissolved by the brake fluid, lowering its boiling point. During prolonged braking, the temperature of the braking system rises, increasing the risk of vapor lock. Compressed air can reduce braking force or cause failure. For driving safety, brake fluid must be replaced periodically.

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What does the 'V' on a tire indicate about its maximum speed?

The 'V' on a tire indicates a maximum speed of 240km/h. Here are the relevant details: 1. Meaning of speed rating: The speed rating indicates the maximum speed at which a tire can carry a specified load under defined conditions. 2. Common speed ratings: 'Q' represents 60 km/h, 'R' represents 170 km/h, 'S' represents 180 km/h, and so on. If a tire has no speed marking, unless otherwise specified, it is generally considered to have a maximum safe speed of 120km/h. 3. Precautions: Tires are primarily made of polymer composite materials, and temperature increases can accelerate rubber aging. When a car is driven at high speeds, the temperature of the entire tire rises, leading to increased tread wear. Every tire has a designed critical speed; if used beyond this limit, there is a risk of tire blowout.

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Are Both Mercedes-Benz and Audi Owned by Volkswagen?

What is the actual speed when Gaode shows 115 km/h?

Why does the DMV withhold the green book?

What are the pros and cons of buying a car in another location for registration?

What is the penalty for changing lanes without signaling on a dashed line?

What is the Difference Between DOT4 and DOT3 Brake Fluid?

What does the 'V' on a tire indicate about its maximum speed?

What are the differences between Speedmaster 1000 and 2000?

Is it serious to accidentally shift into P gear while driving?

What Causes a Tubeless Tire to Detach from the Rim?

What is the equivalent national emission standard for Euro 3?