How to Add BMW Digital Key to iPhone?

Should You Press the Clutch When Decelerating in Driving Test Phase 3?

Decelerating with the clutch depends on the vehicle speed. If the car is in 3rd gear or higher and moving at a relatively high speed, the student driver does not need to press the clutch. Instead, they can use the "pump braking" method—lightly pressing and releasing the brake pedal repeatedly. However, if the speed has significantly decreased to 2nd or 1st gear and the engine starts to struggle, pressing the brake without the clutch may stall the engine. In such cases, both the brake and clutch should be pressed simultaneously. The correct method for decelerating in Phase 3 is as follows: 1. On flat roads with light traffic, when the speed is above 30km/h and only brief braking is needed, gently tap the brake pedal without pressing the clutch. 2. When passing bus stops, school zones, waiting at traffic lights, in traffic jams, or coming to a complete stop, shift to a lower gear and press both the clutch and brake pedals.

8

1

Share

What Causes Severe Engine Shaking During Cold Start?

Reasons for severe engine shaking during cold start: 1. Excessive carbon deposits. Severe carbon buildup in the engine cylinders can lead to spark plug blockage and valve clogging, directly causing vehicle shaking during idling. If the car's acceleration performance has significantly deteriorated and the shaking persists, consider performing an engine cylinder cleaning. 2. Fuel supply system malfunction. Unstable fuel pressure can cause inconsistent air-fuel mixture concentration, resulting not only in shaking but also unstable idling. First consider replacing the fuel filter, as prolonged use may cause filter clogging. Then check the fuel pressure bypassing the fuel filter - if abnormal, it may indicate a fuel pump issue. 3. Worn engine mounts. If the engine shaking progressively worsens without corresponding power loss, consider whether it's an engine mount problem. 4. Misfiring cylinders. This is the most common cause of engine shaking, typically caused by issues with ignition coils or spark plugs. If ignition coils malfunction or spark plugs fail to fire properly, the vehicle will experience shaking.

6

4

Share

Where to Check the Production Date of a Newly Purchased Car?

New car production dates can be checked in two places: the co-pilot side and the certificate of conformity. Details are as follows: 1. Below the B-pillar on the co-pilot side, open the door to see it. This nameplate only specifies the year and month, and the vehicle's chassis number is noted on the nameplate. 2. The certificate of conformity that comes with the new car, located in the upper right corner of the certificate. The production date marked here can be specified to the year, month, and day. Note: This is not applicable to all models. When the new car arrives at the dealership from the factory. There will be a factory paper nameplate on the front windshield of the driver's seat. The paper nameplate indicates the chassis number and the MIIT fuel consumption. If the bottom of the paper nameplate specifies the year, month, and day, then the production date on this nameplate can be used as a reference date. If the nameplate only specifies the year and month, then it cannot be used as the factory date.

12

2

Share

What is the maximum age for driving with a C1 driver's license?

There is no upper age limit for holding a C1 driver's license. However, applicants aged 70 and above must pass tests for memory, judgment, and reaction abilities. Physical examination requirements: Motor vehicle drivers aged 70 and above (including 70) must undergo an annual physical examination, while those under 70 do not need to. Permitted vehicle types: The C1 driver's license allows driving small and micro passenger vehicles, as well as light and micro cargo vehicles; light, small, and micro special-purpose vehicles; and small passenger vehicles with a seating capacity of 9 or fewer. C1 driver's license holders cannot drive: large buses, tractors, city buses, medium-sized buses, large trucks, ordinary three-wheeled motorcycles, ordinary two-wheeled motorcycles, light motorcycles, wheeled self-propelled machinery, trolleybuses, and trams. Additionally, a C1 license does not permit driving vehicles with more than 9 seats or trucks with a total length exceeding 6 meters.

5

4

Share

What Are the Causes of BMW Transmission Abnormal Warning?

The main causes of abnormal transmission warnings in BMW vehicles include transmission slippage, damage to components directly related to transmission electronics, and transmission control module failure. Transmission slippage occurs due to worn clutch friction plates, surface peeling, valve body wear, and insufficient pressure. Damage to transmission electronic components happens when debris from worn clutches and valve bodies clogs solenoids. A faulty transmission control module leads to abnormal signal processing, triggering fault alerts in the vehicle monitoring system. During prolonged use, frequent gear shifting inevitably causes wear and deformation of transmission components, resulting in symptoms like difficult gear engagement, automatic gear disengagement, and operational noises. Regular full-load operational checks should be performed to observe transmission smoothness, abnormal gaps, or unusual sounds for timely troubleshooting. Solutions for abnormal warnings: 1. First scan for transmission system fault codes. 2. Identify specific transmission faults based on codes before replacing corresponding components. 3. Seek professional inspection at an automatic transmission repair center. Typically, replacing only the damaged individual components can resolve transmission issues.

14

1

Share

Is the Tayron equipped with a dry or wet dual-clutch transmission?

The 1.4-liter version of the Tayron uses a dry dual-clutch transmission, while the 2.0-liter version is equipped with a wet dual-clutch transmission. Detailed information about dual-clutch transmissions is as follows: 1. In a dry dual-clutch transmission, the clutch connects the driving plate and the driven plate through air, directly contacting the engine flywheel. 2. A wet dual-clutch transmission uses oil to connect the driving plate and the driven plate, immersing the clutch plates in a sealed oil trough to absorb the heat they generate, significantly improving heat dissipation performance. This results in better performance in terms of shifting speed, fuel consumption, and comfort. 3. A dual-clutch transmission (DCT) has two sets of clutches in the transmission system, each connected to an input shaft—one controlling the odd-numbered gears and the other the even-numbered gears. This greatly reduces shifting time and increases efficiency, enhancing comfort during gear changes.

9

5

Share

How to Add BMW Digital Key to iPhone?

Should You Press the Clutch When Decelerating in Driving Test Phase 3?

What Causes Severe Engine Shaking During Cold Start?

Where to Check the Production Date of a Newly Purchased Car?

What is the maximum age for driving with a C1 driver's license?

What Are the Causes of BMW Transmission Abnormal Warning?

Is the Tayron equipped with a dry or wet dual-clutch transmission?

How to Solve the Problem When a Car Won't Start?

What causes severe carbon buildup in the Corolla Hybrid?

Does Engine Idling Damage the Car?

What engines are used in the Countryman?