How to Use the Corolla Collision Avoidance System?

How to Activate the Fuel-Saving Mode in Geely Binyue?

Simply press the ECO button on the center console to switch to the Economy Mode, which is the fuel-saving mode. Here are some additional details: 1. Sport Mode: All forward gears will automatically delay upshifts and advance downshifts, allowing the engine's reserve power to be fully utilized, thereby enhancing driving performance. Press the SPORT key to activate it. 2. Normal Mode: This is the daily driving mode, offering both the acceleration feel of Sport Mode and the fuel efficiency of Economy Mode, making it suitable for less congested road sections. 3. ECO Economy Mode: The primary difference from the Standard Mode is that the Economy Mode can save energy. The ECO Mode mainly optimizes fuel consumption by comprehensively evaluating conditions such as automatic transmission gear shifts and engine RPM during vehicle movement. The ECU control unit calculates the optimal fuel quantity to supply the engine, effectively reducing fuel consumption compared to the Standard Mode.

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How to Detect a Faulty Oxygen Sensor?

You can determine the condition of an oxygen sensor by observing the color at its tip. Below are methods to detect a faulty oxygen sensor: 1. Light gray tip: This is the normal color of an oxygen sensor. 2. White tip: Caused by silicon contamination; the oxygen sensor must be replaced. 3. Brown tip: Caused by lead contamination; if severe, the oxygen sensor must be replaced. 4. Black tip: Caused by carbon deposits; after addressing the engine's carbon deposit issue, the deposits on the oxygen sensor can clear automatically. Noise in the oxygen sensor signal is typically caused by the following reasons: 1. Poor ignition in cylinders: Various root causes, including ignition system issues, poor ignition due to cylinder pressure, vacuum leaks, and uneven fuel injector performance. 2. System design: Factors such as varying intake manifold runner lengths. 3. Aging of the engine and components exacerbating system design issues: For example, uneven cylinder pressure amplifying problems related to different intake manifold runner lengths. 4. System design: Variations in intake manifold runners, among others.

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How to Replace Car Coolant?

Steps for replacing coolant: 1. First, ensure the engine is in a cold state; otherwise, the coolant may splash out during filling. 2. Then, open the engine hood and locate the coolant reservoir of the engine. 3. Unscrew the reservoir cap counterclockwise and open the drain valve (to release the coolant). It's also necessary to rinse the interior. 4. Next, refill the reservoir with the same specification of coolant until the liquid level reaches the maximum mark (MAX). 5. Finally, after filling the coolant, securely close the reservoir cap. Note: Be careful not to spill the coolant during the filling process. If it comes into contact with the exhaust pipe, it may produce unpleasant odors or even cause smoking or fire. Therefore, if it contacts the exhaust pipe, wipe it off immediately with a wet cloth.

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Is Semi-Synthetic or Fully Synthetic Engine Oil Better for Cars?

For car maintenance, fully synthetic engine oil is better. Fully synthetic engine oil has the following advantages over semi-synthetic engine oil: 1. Fully synthetic oil offers superior high and low-temperature performance: Fully synthetic oil can operate over a wider temperature range and has a longer service life. It can achieve the required performance with lower viscosity, whereas semi-synthetic oil requires a relatively higher viscosity to meet the same requirements. 2. Longer oil change intervals: Engine oil blended with synthetic oil has stronger oxidation resistance, significantly extending the oil change interval. Although the initial investment in oil is higher, it reduces the frequency of oil and filter changes. 3. Suitable for more demanding driving conditions: Synthetic oil is better suited for higher-load engines, offering stronger resistance to high temperatures and shear. Under high-speed engine operation, the oil does not lose viscosity, providing more comprehensive protection for the engine. Synthetic engine oil is of higher quality and more fuel-efficient.

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Can an Automatic Transmission License Drive a Manual Transmission Car?

A manual transmission license allows driving automatic transmission vehicles, but an automatic transmission license does not permit driving manual transmission cars. Driving a manual transmission car with a C2 driver's license is equivalent to driving without a license and will result in severe legal penalties. If this leads to a traffic accident causing injuries or fatalities, the driver will also bear legal responsibility. The permitted driving scope of a C1 driver's license includes: small and micro passenger vehicles with a total mass not exceeding 4.5 tons; light and micro cargo vehicles, with the total length of the cargo vehicle not exceeding 6 meters; light, small, and micro special operation vehicles; small passenger vehicles carrying 9 or fewer people, meaning vehicles with 9 or more seats, such as some SUVs and MPVs with more than 9 seats, cannot be driven. The permitted vehicle types for a C2 driver's license include: small and micro automatic transmission passenger vehicles, as well as light and micro automatic transmission cargo vehicles. Like the C1 license, it only allows driving automatic transmission cars with fewer than 9 seats and a length not exceeding 6 meters. Additionally, a C2 or higher license also permits driving small automatic transmission passenger cars specially designed for upper limb disabilities and shared vehicles for disabled individuals.

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Does a Broken Timing Belt Require an Overhaul?

If the timing belt breaks while driving, it can cause the engine valves to collide with the pistons, necessitating a major engine overhaul. Generally, if the timing belt is properly maintained and replaced according to the manufacturer's recommended mileage or time intervals, it is less likely to break. Below is an extended explanation regarding timing belt failure: 1. When the timing belt breaks, if it gets jammed, the valves may remain in the open position while the engine stops running. If the engine is idling when the belt breaks, there may be a gap between the piston at the top of its stroke and the open valves. In both scenarios, only the timing belt itself is damaged. 2. However, if the engine has an "interference fit" design, where the pistons and valves occupy the same space without any clearance, other components can quickly sustain damage, such as bent valves or impacted pistons. 3. These failures will result in higher repair costs for the customer and may lead to prolonged vehicle downtime. Understanding the importance of regular inspections and timely replacement of the timing belt is crucial. Additionally, replacing the timing belt during routine maintenance is far more cost-effective than dealing with a major engine overhaul later.

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How to Use the Corolla Collision Avoidance System?

How to Activate the Fuel-Saving Mode in Geely Binyue?

How to Detect a Faulty Oxygen Sensor?

How to Replace Car Coolant?

Is Semi-Synthetic or Fully Synthetic Engine Oil Better for Cars?

Can an Automatic Transmission License Drive a Manual Transmission Car?

Does a Broken Timing Belt Require an Overhaul?

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