What is the difference between the D gear and S gear in the Passat?

1 Answers
LaBenjamin
07/30/25 8:47am
D gear is the regular automatic gear position, which shifts up automatically when the RPM reaches around 2000. S gear enhances power by delaying gear shifts and increasing RPM, typically shifting up around 4000 RPM, similar to driving in manual mode without shifting gears and stepping on the accelerator. It is generally used for overtaking. Specific details are as follows: 1. Automatic transmission cars: Automatic transmission cars use an automatic transmission to regulate speed. While driving, the control system of the automatic transmission automatically selects the appropriate gear based on the engine's RPM and load, replacing the driver's subjective judgment of timing and gear shifting. 2. Mechanical clutch: Automatic transmission cars usually use a hydraulic transmission device to replace the mechanical clutch in manual transmission cars, so there is no clutch pedal. When the engine RPM is low, the torque transmitted by the fluid is limited and insufficient to propel the car forward.
Was this review help?
15
0
Share
More Forum Discussions

Can You Make a U-Turn Over a Solid Yellow Line?

Making a U-turn over a solid yellow line is not allowed and constitutes a traffic violation. According to the "Road Traffic Safety Law," violators will be fined 200 yuan and receive 3 penalty points. On long stretches of roads, solid white lines, dashed white lines, solid yellow lines, or dashed yellow lines are typically present in the middle sections or before intersections. U-turns are prohibited wherever solid lines are present. Permissible U-turn scenarios: Intersections with U-turn signs: If there is a clear U-turn sign at an intersection, a U-turn is allowed. If there is a U-turn traffic light, follow its instructions. In the absence of a traffic light, perform the U-turn based on the specific situation, ensuring it does not obstruct other vehicles or pedestrians. Intersections without explicit no-U-turn or no-left-turn signs: U-turns are permitted where there is no explicit prohibition. "No explicit prohibition" means the absence of "No U-turn" or "No left-turn" signs and the absence of solid lines in the center of the road. Yellow grid lines also permit U-turns: Yellow grid lines are no-parking zones marked at intersections prone to congestion due to temporary stops, entrances/exits of important facilities, or other designated areas. Stopping on these lines (including waiting at traffic lights) is a violation. Although parking is prohibited in yellow grid zones, U-turns are allowed unless there is a central road barrier. Intersections with U-turn traffic lights: This is straightforward—if there is a U-turn traffic light, proceed only when it is green. Simultaneous presence of no-left-turn and U-turn-allowed signs: U-turns are permitted even if left turns are prohibited, but "No U-turn" does not mean "No left-turn." Precautions when making U-turns at intersections: Observe road markings—U-turns are never allowed over solid lines under any circumstances. Continue driving to find a suitable spot. If a "No left-turn" sign is present, U-turns are also prohibited at that intersection, even if there is no explicit "No U-turn" sign, as U-turns inherently involve left turns. U-turns must be made from the innermost left-turn lane. U-turns are not allowed from the second left-turn lane. Always yield to oncoming traffic when making a U-turn. Proceed only if it does not interfere with straight-moving vehicles, or you will bear full responsibility for any accidents. Near intersection stop lines, lanes often have guiding arrows. Not all leftmost lanes have left-turn arrows—some may have straight arrows. Even without explicit "No U-turn" signs, U-turns are prohibited in such lanes. U-turns on crosswalks are illegal and constitute a violation.
15
0
Share

How many driver's licenses can be used for demerit points deduction for one vehicle?

A vehicle can only use three different driver's licenses for demerit points deduction, and the license holder must personally present the license for the deduction. If a motor vehicle driver's demerit points in a scoring period do not reach 12, and the imposed fines have been paid, the demerit points will be cleared. If the demerit points have not reached 12 but there are unpaid fines, the demerit points will carry over to the next scoring period. If a driver accumulates 12 demerit points in a scoring period, they must attend training and pass the subject one exam at the issuing vehicle management office or the local vehicle management office where the violation occurred to clear the full-point record and restore the normal use of the driver's license. The documents required for the 12-point demerit training include the original driver's license and the applicant's identity proof.
9
2
Share

Why Does the Steering Wheel Shake When Braking?

Steering wheel shaking when braking is caused by issues in the braking system. The friction between the brake pads and discs generates vibrations, which also cause the steering knuckle to shake. When the steering knuckle shakes, the tires slightly wobble, leading to movement in the steering gear. Consequently, the steering wheel connected to the steering gear also shakes. If the brake disc surface has play, slight jumps in the brake pedal may occur during high-speed braking. These jumps are transmitted through the related steering system to the steering wheel, causing it to shake left and right. After resurfacing the brake discs, they can be reused. The braking system has high requirements for surface flatness. Some brake discs or their surfaces may have dirt, which can deform due to heat, leading to unevenness and resulting in vibrations.
18
0
Share

Do China VI New Cars Still Need a Break-in Period?

China VI new cars do require a break-in period. Key considerations for the break-in process include: 1. Avoid emergency braking within the first 300 kilometers of driving, as this may shock the braking system during break-in and increase impact loads on both the chassis and engine; 2. Do not overload the vehicle - operating at full capacity during the break-in period may damage mechanical components. Generally, cargo weight should not exceed 75% to 80% of the rated load capacity; 3. When driving on highways, maintain speeds up to 120 km/h with engine RPM below 3,000. During long-distance trips, take approximately 10-minute breaks at service areas; 4. Change engine oil according to the manufacturer's specified intervals during the break-in period, avoiding premature replacement.
16
5
Share

What does the Hill Start Assist System mean?

The Hill Start Assist System is a function derived from the ESP system, which allows the vehicle to maintain braking for a few seconds when starting on a slope without using the handbrake, even after the right foot leaves the brake pedal. This enables the driver to easily move their foot from the brake pedal to the accelerator pedal, preventing the vehicle from rolling back and causing an accident, without making the driver feel flustered. How to use the Hill Start Assist System: 1. Press the brake and clutch pedals firmly, ensuring the gear is in the 1st position; 2. First, tap the brake, shift to 1st gear, release the clutch and brake to let the car move slightly forward, then immediately press the clutch and brake firmly to activate the Hill Start Assist; 3. When starting, after releasing the brake, the vehicle can remain stationary for 2-3 seconds, allowing the driver to release the clutch and press the accelerator to move forward.
1
3
Share

What do the numbers and letters on tires mean?

The numbers and letters on tires mean: 1. Section width: A wider tire increases the contact area with the ground, enhancing grip and directly improving braking performance; 2. Aspect ratio: This is the ratio of the tire's section height to its section width; 3. Radial tire and rim diameter: Common tires are marked with 'R', indicating radial tires, also known as 'steel-belted tires'. Radial tires have internal ply cords arranged at a 90-degree angle to the tire's centerline, resembling meridians on a globe; 4. Load index: This is a number corresponding to the maximum load capacity, indicating the maximum weight the tire can bear under normal inflation; 5. Speed rating: This indicates the maximum speed at which the tire can carry a specified load under defined conditions.
3
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.