Does the 6-year exemption for new vehicle inspections include the 6th year?

What are the pros and cons of the PDK transmission?

PDK transmission has the advantages of fast shifting, high transmission efficiency, and low fuel consumption level; the disadvantage is the presence of low-speed jerking. Fast shifting: The characteristic of power shifting is that there are two sets of transmissions, one for controlling 1st, 3rd, and 5th gears, and the other for controlling 2nd, 4th, and 6th gears. When using first gear, second gear is already prepared, so the shifting time is greatly reduced with no delay. High transmission efficiency: The friction plates of the PDK transmission's dual clutch are rigidly connected, and the efficiency of the dual clutch is higher than that of a manual transmission because the transmission power is not interrupted during shifting, so the efficiency of torque transmission is also high. Low fuel consumption level: Because the transmission efficiency is improved, fuel consumption is also reduced. Low-speed jerking: In pursuit of the ultimate performance, the PDK transmission does not use a torque converter for buffering, and the rigid connection between the engine and the transmission also means that the PDK transmission has the defect of low-speed jerking.

2

0

Share

What is the Normal Range for Oil Pressure Gauge?

When the engine is running, the normal oil pressure gauge reading generally stays within the range of 150-350kPa. If the indicated pressure value is below 98kPa, it can be considered as low oil pressure, and the vehicle should be stopped immediately for inspection. Otherwise, it may lead to excessive wear of parts or even serious mechanical failures such as "bearing seizure." The causes of low oil pressure include the following: Insufficient Oil Level: If the oil level is insufficient, the oil pump's output will decrease, or it may fail to pump oil due to air intake, resulting in a drop in oil pressure. This can accelerate wear on components like the crankshaft, bearings, cylinder liners, and pistons due to poor lubrication. Engine Overheating: Excessive scale in the engine cooling system, poor heat dissipation, prolonged overloading, or delayed fuel injection timing can cause the engine to overheat. This accelerates oil degradation, thinning, and leakage through gaps, leading to reduced pressure. Oil Bypass Valve Malfunction: The oil bypass valve maintains normal oil pressure in the main oil gallery. If its pressure-regulating spring weakens, is improperly adjusted, or the valve seat and ball wear out or get stuck, preventing proper sealing, oil pressure will drop. Clogged Oil Filter: When the oil filter is clogged and cannot circulate oil, the bypass valve on its base opens, allowing unfiltered oil to enter the main oil gallery. If the bypass valve's opening pressure is set too high, it may not open promptly when the filter is clogged, causing increased oil pump pressure, internal leakage, and a subsequent drop in oil pressure.

18

4

Share

How Many Liters of Transmission Fluid Are Needed for a Single Replacement?

Transmission fluid replacement requires four to six liters for manual replacement (gravity method); approximately nine to twelve liters are needed when using a fluid exchange machine. Different vehicle models have varying replacement intervals. Below are the recommended replacement cycles for transmission fluid: Manual Transmission: Manual transmission fluid is generally recommended to be replaced every three years or approximately 100,000 kilometers. Automatic Transmission: Automatic transmission fluid is typically recommended for replacement every two years or around 40,000 kilometers. Continuously Variable Transmission (CVT): CVT fluid is usually advised to be replaced every two years or roughly 60,000 kilometers. The methods for replacing transmission fluid are as follows: Unscrew the drain plug at the bottom of the transmission to drain the old fluid before refilling. Remove the transmission oil pan directly to drain and refill the fluid: This method is more thorough than the previous one, as it allows for the removal of debris from the bottom of the oil pan. Using a circulation machine for automatic transmission fluid replacement: A smart circulation machine enables dynamic fluid exchange, filtering and cleaning sludge and impurities within the automatic transmission.

7

5

Share

How to reset BMW after power failure?

First, check the battery in the trunk to see if the root cause of the problem lies with the battery. If there is an issue, replace the battery. Check if there are any problems with the fuse box socket and wiring harness connector in the glove compartment on the passenger side. It may be due to incorrect contact between the pins on the fuse box socket and the internal circuit of the fuse box.

19

4

Share

How Far Back Can a Dash Cam Review Recordings?

Dash Cam Review Recordings_58 Auto The duration of recordings a dash cam can review depends on the storage card capacity and recording format. Below are details about dash cams and their operational duration: Introduction to Dash Cams: Utilizing the vehicle's engine for operation, dash cams record the external surroundings using high-definition cameras. Operational Duration of Dash Cams: Typically, a 32GB storage card can continuously record for about 8 hours in HD mode. Dash cam SD cards usually come in capacities ranging from 2GB, 4GB, 8GB, 16GB, to 32GB. For larger video storage needs, mobile digital hard drives with capacities of 250GB, 500GB, or even 1000GB can be used. However, most dash cams operate on a loop recording system, where the oldest recordings are automatically deleted once the storage is full to continue recording. Therefore, there is no fixed number of days for how far back a dash cam can review recordings. For example, if within an 8GB memory, the dash cam contains recordings from 10 days ago, then those can be reviewed. But if daily recordings are extensive, footage from 10 days prior might be overwritten.

11

3

Share

Can a Car with Start-Stop Function Use a Regular Battery?

Cars equipped with start-stop functionality cannot use regular batteries, as doing so poses several risks, including shortened battery lifespan, rapid capacity degradation, inability to properly utilize the start-stop feature, and potential health impacts on passengers. Below is relevant information about the start-stop function: The original purpose of engine start-stop technology is energy conservation and emission reduction: This system is designed to automatically put the engine into a dormant state during brief stops to achieve energy-saving and emission-reducing goals. When the vehicle comes to a halt due to traffic congestion, the driver presses the brake pedal and shifts into neutral. The system then detects that the engine is idling without being engaged in gear, while wheel speed sensors indicate zero movement. Additionally, electronic sensors confirm sufficient energy reserves for the next startup. If all three conditions are met, the engine will automatically shut off. To restart, simply release the brake pedal and either press the accelerator or turn the steering wheel. Advantages of the automotive start-stop function: The principle of the automatic start-stop system involves adding an electric motor to a conventional gasoline engine. When the vehicle is stationary with the engine idling, the system completely shuts off the engine. Upon needing to restart, the electric motor quickly reignites the engine through driver actions such as pressing the accelerator, engaging the clutch, or turning the steering wheel, thereby reducing fuel consumption during idle periods.

7

0

Share

Does the 6-year exemption for new vehicle inspections include the 6th year?

What are the pros and cons of the PDK transmission?

What is the Normal Range for Oil Pressure Gauge?

How Many Liters of Transmission Fluid Are Needed for a Single Replacement?

How to reset BMW after power failure?

How Far Back Can a Dash Cam Review Recordings?

Can a Car with Start-Stop Function Use a Regular Battery?

Do You Need to Wait for the Traffic Light When Making a U-Turn?

What Are the Main Classifications of Car Sunroofs?

What does the circle with an exclamation mark in a car mean?

Where is the fuel pump relay located in a Citroen Elysee?