How to adjust the parking brake of a car?

What Are the Five Major Taboos of Turbocharging?

Turbocharging five major taboos are: 1. Stepping on the accelerator aggressively right after starting: Since the turbocharger is cooled by engine oil, and the oil's fluidity is poor when the engine is cold, high-speed operation of the turbocharger at this time can cause significant wear; 2. Lugging the engine with a manual transmission turbocharged car: Lugging can lead to severe engine damage and spark plug failure; 3. Excessive idling time: During idling, the engine speed is low, and the turbocharger speed is also low. The gas pressure inside the turbine and compressor is lower than that in the bearing housing, causing oil to leak towards the compressor and turbine at both ends; 4. Turning off the engine immediately after high-speed driving: When a running engine is suddenly shut down, the oil pressure drops rapidly to zero, interrupting oil lubrication and preventing the internal heat of the turbocharger from being carried away by the oil; 5. Not using high-quality oil as required: The turbocharger's speed usually exceeds 150,000 rpm, and most mass-produced cars use floating bearings for the turbo, making the selection of high-quality oil particularly important.

4

5

Share

What is the minimum ground clearance of a fully loaded Golf?

The minimum ground clearance of a fully loaded Golf is 115mm. The minimum ground clearance of the Golf refers to the distance between the lowest point (excluding the wheels) and the supporting plane, which indicates the vehicle's ability to pass over obstacles such as stones and tree stumps without collision. A higher ground clearance in the Golf improves its off-road capability, but if the ground clearance is too high, the stability at high speeds may decrease. The Golf is built on Volkswagen's new MQB platform. The Golf's body dimensions are 4259mm in length, 1799mm in width, and 1476mm in height, with a wheelbase of 2637mm. Generally, the ground clearance of sedans ranges between 110mm and 150mm, while SUVs have a ground clearance between 200mm and 250mm. However, the Golf's ground clearance is not static; it depends on the load condition, so changes in ground clearance should be considered based on the Golf's load variations. When choosing a vehicle, ground clearance can be one of the reference factors. The decision should be based on the vehicle's intended use and the road conditions. For urban areas with well-paved roads, a vehicle with lower ground clearance can enhance stability and comfort. For long-distance travel or driving in areas with poor road conditions, a vehicle with higher ground clearance may be preferable to avoid scraping or damaging the undercarriage, considering the vehicle's off-road performance.

11

1

Share

When Should the Engine Oil Be Changed for a New Car?

For a new car, the engine oil can be changed every 5,000 kilometers, while synthetic oil can extend the interval to 8,000 to 10,000 kilometers. In terms of time, even if the car hasn't driven 5,000 kilometers within six months, the engine oil should still be considered for replacement. Engine oil plays multiple roles in the engine, including lubrication and wear reduction, aiding in cooling, sealing to prevent leaks, rust and corrosion prevention, and shock absorption. Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of the lubricant, determining its fundamental properties, while additives compensate for and enhance the performance of the base oil, making them an essential part of the lubricant.

1

3

Share

What is the general warranty period for brake discs?

The warranty period for brake discs is generally one year, but it varies among different vehicle brands. As a wear-prone component, manufacturers offer different warranty terms for brake discs. Resurfacing or machining the surface of a brake disc reduces its service life, so replacement is recommended whenever feasible. The braking system consists of multiple components, primarily the brake disc, brake pads, and electronic braking system. The brake disc and pads function interdependently - failure of either component will result in braking failure. In addition to discs and pads, brake fluid maintenance is crucial, with recommended replacement intervals of 2 years or 40,000 kilometers.

15

2

Share

What pressure should car air conditioning be charged to?

Car air conditioning should be pressurized to around 20-30 bar, which should be higher than the working pressure of the car air conditioning system. Nitrogen is generally used for pressurization and leak detection in car air conditioning systems. More details are as follows: 1. When pressurizing and checking for leaks in the car air conditioning system, use soapy water to inspect the connections of the air conditioning pipes. Whether pressurized from the high or low side, the pressure inside the system will eventually balance. Typically, nitrogen is added to the system from the high side, but Freon can also be added to the system and checked with a halogen leak detector, though this method is less effective than using soapy water. Since Freon operates at lower pressure within the system, minor leaks may be harder to detect. 2. Once the refrigeration system has been evacuated to the required vacuum level and no leaks are detected, refrigerant can be added to the system. Before charging, determine the correct amount of refrigerant to add, as too much or too little will affect the air conditioning's cooling performance. The compressor's nameplate usually indicates the type and amount of refrigerant required. 3. When using the car air conditioning system, it is important to maintain and service it properly. Avoid adjusting the air vents randomly. Some drivers do not pay attention to the direction of the airflow, which can prevent the air conditioning from performing optimally. According to the principle that cold air sinks and warm air rises, the correct approach is to direct the vents upward when cooling and downward when heating.

14

5

Share

How to Remove and Install a Car Windshield Washer Nozzle?

Methods for removing and installing a car windshield washer nozzle: 1. Locate the nozzle position, then gently pry it up using a screwdriver. The nozzle features a snap-fit design and requires minimal force; 2. Once the nozzle is pried up, you'll see a small connected hose. Simply detach the nozzle from the hose, being careful not to let the hose fall into the car, as this would necessitate removing the entire panel to retrieve it; 3. Install the newly purchased nozzle by carefully placing it into the mounting hole and pressing it downward until it clicks into place; 4. After installation, test the nozzle by spraying water to check the water stream's position on the windshield. If the stream is misaligned, use a needle to adjust the spray direction by inserting it into the nozzle hole until the desired position is achieved.

4

2

Share

How to adjust the parking brake of a car?

What Are the Five Major Taboos of Turbocharging?

What is the minimum ground clearance of a fully loaded Golf?

When Should the Engine Oil Be Changed for a New Car?

What is the general warranty period for brake discs?

What pressure should car air conditioning be charged to?

How to Remove and Install a Car Windshield Washer Nozzle?

What is the power output of the BMW 528?

Where is the power steering pump located?

What to Do If the Shock Absorbers Are Too Hard?

What is the reason for the hissing sound of a leaking lighter?