How to Reset the Maintenance Light on Volvo XC90?

Is it necessary to change tires at 60,000 kilometers?

Tires must be replaced at 60,000 kilometers, as their service life is generally 4 to 6 years or 60,000 to 100,000 kilometers. Tire usage duration: Since the main raw material of tires is rubber, natural aging occurs over time, mainly manifested as the tires hardening and the sidewalls becoming covered with small cracks. Typically, natural aging takes 4-5 years or a mileage of 60,000-80,000 kilometers. This means tires should be replaced promptly after 5 years or when the mileage reaches 60,000 kilometers to prevent the risk of tire blowouts. Tire usage precautions: Stay away from curbs to avoid squeezing the tires; avoid direct sunlight, as rubber can age and soften under high temperatures, potentially causing the tires to expand and crack, naturally reducing their lifespan.

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Why does the tire pressure warning light come on when the tire pressure is normal?

The reasons for the tire pressure monitoring alarm when the tire pressure is normal are as follows: Malfunction in the tire pressure sensor or receiver module: This is a relatively rare occurrence, as tire pressure monitors generally have good durability and their lifespan can usually match that of the vehicle. However, signal interference can sometimes occur, which may cause the tire pressure sensor to give false alarms. Driving quickly over uneven road surfaces: When the tire is impacted at high speed, the internal tire pressure may increase, especially when driving in summer. The thermal expansion and contraction of air can also trigger the tire pressure warning. Minor tire puncture or slow leak: Sometimes, a tire may be punctured or experience slow leakage due to aging. These minor pressure fluctuations may not be noticeable to the naked eye, but the tire pressure monitoring system can detect them.

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Is it normal for one front tire pressure to be 240 and the other 260?

A tire pressure of 260KPa is abnormal for your car, as it exceeds the standard tire pressure range for ordinary household vehicles. The normal tire pressure range should be between 240KPa and 250KPa. Hazards of excessive tire pressure: Reduced tire friction and adhesion, affecting braking performance; causes steering wheel vibration and deviation, lowering driving comfort; accelerates wear on the central tread pattern of the tire, reducing tire lifespan; increases body vibration, indirectly affecting the lifespan of other components; overstretches the tire cords, reducing tire elasticity and increasing the load on the vehicle while driving; decreases puncture resistance. When encountering sharp objects like nails or glass on the road, the tire is more prone to punctures, and impacts can cause internal cracks and blowouts, leading to tire bursts. Hazards of insufficient tire pressure: Increases friction coefficient with the road surface, leading to higher fuel consumption; makes the steering wheel heavy and prone to deviation, compromising driving safety; increases movement in various parts of the tire, causing abnormal heat 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 friction between the tire and the ground, sharply raising tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may result in tire bursts; increases tire body deformation, making the sidewalls prone to cracks and generating flexing movements, leading to excessive heat, rubber aging, fatigue in the cord layers, and cord breakage. It also increases the tire's contact area with the ground, accelerating shoulder wear.

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What is the Difference Between New Tires and Retreaded Tires?

New tires and retreaded tires differ in the following aspects: Tire tread patterns and color: Standard new tires have uniform and regular tread patterns, with a relatively dull surface color. In contrast, retreaded tires have shallower tread patterns, uneven surfaces in some areas, and may appear reflective. Interface between tire tread and sidewall: For standard new tires, the connection between the sidewall and tread is very tight. However, retreaded tires, due to the tread being added later, will have some gaps between the tread and sidewall. You can use a screwdriver to gently pry the area; if it can be lifted, it is a retreaded tire. Labels on the tires: There are many labels on the tread of car tires, which are initially printed. After retreading, these labels are often pasted on. Therefore, you can try to peel these labels with your fingers. If they can be easily peeled off, the tire is retreaded.

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What is included in the first maintenance of a new car?

The first maintenance at a 4S shop includes the following aspects: changing the engine oil and oil filter, cleaning the air filter; checking whether the levels of various fluids are normal, inspecting the generator belt and wiper blades for any damage; checking whether the tire pressure is normal and if there is any uneven wear, bulging, or damage to the tires; inspecting the chassis, including: brake pads, brake discs, connecting rods, ball joints, CV joints, for any scratches, etc.; checking all the switches in the car; ensuring the lights are working properly. Estimated time: completing all tasks takes about 2 hours. Items needed for the first maintenance include: driver's license; maintenance manual; warranty manual; owner's ID card; vehicle registration certificate; vehicle purchase invoice, to be taken to the designated first maintenance institution for the vehicle's first maintenance. Note: It is advisable to make an appointment with the 4S shop in advance. The first maintenance refers to the initial maintenance after the new car has been driven, with the specific time varying by car, generally after driving 1000 to 3000 kilometers. The car needs to undergo the first maintenance in a timely manner, neither in advance nor delayed. The completion of the first maintenance marks the end of the car's break-in period, allowing it to be driven according to the standard load and normal speed required by the car. The time for the first maintenance is calculated based on the date of car pickup. There are two indicator values for the first maintenance time: mileage and time. Whichever comes first is the standard. The following inspections and replacements must be completed during the first maintenance of a new car: changing the oil, cleaning the three filters, namely the oil filter, fuel filter, and air filter; checking whether the car's coolant level is normal; inspecting the position of the car's brake and clutch fluid levels; checking whether the power steering fluid level is normal and if there is any oil leakage at the pipe connections; the worker should check the aging and tension of the generator, air conditioner, water pump, and belts; inspecting the tire pressure and wear condition, inflating the tires, or performing tire rotation if there is wear. When changing the oil, the oil filter must also be replaced. The choice of oil must refer to the "Vehicle Use and Maintenance Manual," as different car models specify different oil grades. Maintenance precautions: Do not rinse the interior of the car body with water: Many people clean their cars themselves during holidays, rinsing the body with water and scrubbing with a cloth. Here, it is important to remind that the interior of the car body does not need to be directly rinsed with water. If the floor mats are dirty, you can use a vacuum cleaner or take them out, brush them with detergent, dry them, and then put them back. There are many holes under the rubber mats on the floor of the driver's compartment. If water enters, it will not dry but will flow through the holes to areas like the gearbox, causing erosion and corrosion. A better approach is to clean with a vacuum cleaner and then wipe with a cloth to prevent water accumulation. Do not mix different brands of antifreeze: When the car's antifreeze is low, it is recommended to drain the antifreeze and add the same brand of antifreeze from the beginning. Because different brands of antifreeze have significantly different chemical functions. Various functional additives can corrode other functional additives. Different brands of antifreeze use different additives, so they should not be mixed to avoid unnecessary trouble. Do not lubricate tire bolts and nuts: When the bolts on a moving car rust, they are usually oiled to function properly again. To prevent the bolts and nuts on the wheels from rusting, some people apply lubricant to them, but this brings necessary risks to safe driving. When the car is driven at high speed, the bolts and nuts can easily loosen or even fall off, leading to driving failures. Electronic fuel injection cars do not need to press the accelerator when starting: The starter of an electronic fuel injection car is different from that of a regular car. Its fuel injection control device can automatically adjust the fuel supply based on the starter's temperature and working conditions, allowing the starter to operate smoothly.

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Does running out of windshield washer fluid affect the car?

Running out of windshield washer fluid does not directly affect the car itself. Impact on the washer motor: If the car is out of windshield washer fluid and the washer function is not used, there is no impact on the vehicle. However, if the washer function is used for an extended period without fluid, the washer motor may run dry and potentially burn out. Impact on driving safety: The most critical point is that running out of windshield washer fluid significantly affects driving safety. Windshield washer fluid serves multiple functions including cleaning, antifreeze, antistatic, and anti-corrosion. Some premium washer fluids also feature rapid snow/ice melting, anti-glare, and anti-fog properties, which greatly enhance driving safety. When driving in special conditions such as highways or rainy weather, a dirty windshield caused by external environmental factors can obstruct the driver's view of the road ahead, increasing the risk of accidents.

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How to Reset the Maintenance Light on Volvo XC90?

Is it necessary to change tires at 60,000 kilometers?

Why does the tire pressure warning light come on when the tire pressure is normal?

Is it normal for one front tire pressure to be 240 and the other 260?

What is the Difference Between New Tires and Retreaded Tires?

What is included in the first maintenance of a new car?

Does running out of windshield washer fluid affect the car?

How long can the A2 driver's license annual review be overdue without consequences?

Can Temporary License Plates Enter Automatic Recognition Parking Lots?

Is There a Problem with Adding Engine Oil to Hydraulic Oil?

How many kilometers can you drive after the car fuel tank warning light comes on?