What does quattro mean?

1 Answers
DelMariana
07/30/25 5:02am
quattro refers to Audi's four-wheel drive technology under the Volkswagen Group. It is a permanent four-wheel drive mode that maintains four-wheel drive status under any circumstances. The Torsen differential used during cornering allows a certain speed difference between the front and rear axles, avoiding the interference issues found in traditional four-wheel drive systems. The working principle of quattro is: when speed differences between the front and rear axles occur due to external conditions, the Torsen differential automatically transfers most of the power to the drive axle that can work effectively, optimizing and distributing power to all four wheels. Due to balanced axle load distribution, drivers can better control steering precision and flexibility without the need for torque steering assistance.
Was this review help?
1
3
Share
More Forum Discussions

What brand is the Leapmotor S01?

Leapmotor S01 is the first intelligent pure electric vehicle launched by Leapmotor, focusing on high cost-performance and ultimate experience. Here is an introduction to the Leapmotor S01: 1. The Leapmotor S01 adopts a two-door coupe design with a yacht-style floating roof, featuring a simple and sporty styling that reduces the drag coefficient to 0.29. The self-developed integrated electric drive system, combined with the battery pack and lightweight body technology, achieves a 0-100 km/h acceleration in 6.9 seconds, with 0-50 km/h acceleration taking only 2.6 seconds. 2. This model is equipped with an efficient power battery system, offering NEDC ranges of 305/451 km. It features a "Biometric Key System" that unlocks via finger vein recognition and starts via facial recognition, along with leading smart connectivity applications, enabling interconnection between the vehicle, mobile devices, and the cloud. The advanced ADAS system includes adaptive cruise control, lane keeping, facial recognition, fatigue driving warning, intelligent automatic parking, and other smart driving assistance functions. The Leapmotor S01 has L2.5-level intelligent driving assistance capabilities, with more functions unlockable via OTA upgrades in the future.
19
1
Share

What is the Fault Diagnosis Method for Car Air Conditioning Systems?

Automotive air conditioning system fault diagnosis mainly involves four steps: look, listen, touch, and measure. The details are as follows: 1. Look: Generally, large buses have a separate glass observation window on the high-pressure liquid line of the air conditioning refrigeration system, while smaller vehicles usually have the observation window installed on the dryer filter tank. During the operation of the air conditioning system, the glass observation window can provide a rough indication of whether the refrigerant flow is appropriate. 2. Listen: This involves listening for any abnormal sounds from the machine, including: (1) Listening for any unusual noises or abnormalities during compressor operation—if present, it indicates a problem; (2) Listening for any abnormal sounds from the blower, condenser fan motor, etc.—if present, it indicates a problem; (3) If there is a belt noise, it suggests belt slippage; (4) If there is a screeching sound, it is caused by the aging of the electromagnetic clutch magnetic coil, insufficient magnetic force, and clutch disc slippage. 3. Touch: When faults occur in the refrigeration system and its main components, they often lead to abnormal surface temperatures of the system pipelines and main components. Therefore, changes in surface temperature can provide a rough assessment of the system's working condition and the performance of its main components. During specific inspections, tactile methods can be used for judgment. 4. Measure: While using the look, listen, and touch diagnostic methods, if a pressure gauge can be used to measure the high and low-pressure sides of the refrigeration cycle system, the diagnosis results will be more accurate.
7
4
Share

Where is the rear tow hook on the Buick Excelle?

The rear tow hook on the Buick Excelle is located in the tool compartment under the spare tire in the trunk. Information about the tow hook is as follows: A tow hook, also known as a tow ball, is a towing device connected to the rear crash beam of a vehicle, primarily installed on regular household vehicles and self-propelled RVs. The purpose of a tow hook is to install it for towing small trailers or towable RVs. It can also be used to mount rear bicycle racks or luggage carriers, thereby increasing the vehicle's cargo space. How to use a tow hook: Locate the tow hook positions at the rear of the towing vehicle and the front of the towed vehicle. The tow hook is typically designed under the bumper. You can find a hidden space by inspecting the front and rear bumpers, which is usually covered by a round or square cap—this is where the tow hook is located. When installing the towing equipment, whether using soft or hard towing tools, ensure the connection to the vehicle's hook is secure and reliable. If the tow hook has a safety lock, make sure it is properly engaged. Precautions for using a tow hook: Take wide turns when towing. Since the towed vehicle extends the length of the car body and increases the turning radius, making wider turns helps avoid accidents involving pedestrians or non-motorized vehicles. Pay attention to the tire pressure of small trailers. When crossing speed bumps, if the trailer's tire pressure is at the normal 2.5 bar, it may bounce and cause the trailer to detach from the tow hook, which is very dangerous. This is because many small trailers use rubber torsion axles for suspension, resulting in poor shock absorption. It is recommended to reduce the tire pressure of small trailers to around 1.3 bar so the tires can also act as shock absorbers. When reversing, it is advisable to first detach the trailer or RV from the tow hook. Reversing while towing can cause the trailer or RV to swing unpredictably, making it difficult to park properly. Additionally, when parking a vehicle equipped with a tow hook, if there are obstacles or other vehicles behind the parking space, leave more space than usual to prevent the tow hook from hitting the obstacles or vehicles behind. Similarly, be mindful of the rear situation when parallel parking.
1
4
Share

What Causes a Radiator to Leak?

A radiator may leak due to the following issues: 1. The radiator cap is not tightly secured. 2. Inject air into the radiator to observe where water seeps out under pressure. 3. Unscrew the engine oil filler cap and check for signs of oil emulsification. If present, dismantle the engine and replace the cylinder head gasket. 4. The radiator has quality defects. Additional information: If the radiator hose ruptures and leaks due to vehicle vibration or an accident while driving, take the following measures based on the situation: 1. If the leak is a crack no larger than 1mm or a hole no larger than 2mm, add a bottle of radiator sealant to the radiator and start the engine. 2. After 5–10 minutes of opening the coolant for major circulation, any leaks in the cooling system—whether in the radiator, rubber hoses, or gaskets—will stop. The sealant does not need to be drained and will not affect heat dissipation or cause blockages. 3. If no sealant is available, for minor leaks in individual cooling tubes, temporarily place loose tobacco strands into the radiator. The water circulation pressure will cause the tobacco to block the leak in the cooling tube for temporary use. 4. For severe leaks in radiator cooling tubes, cut the leaking tube at the leak point, plug the cut end with a cotton ball coated in soap, then use pliers to flatten and crimp the cut end to stop the leak.
9
1
Share

Where is the engine number located on the Geely Boyue?

The engine number of the Geely Boyue is located under the front and rear adjustment lever of the front passenger seat. Below is an introduction to the Geely Boyue: 1. The Geely Boyue engine is independently developed, featuring turbocharging with direct fuel injection. The transmission is derived from the previously acquired Australian DSI automatic transmission 6AT, with proven smoothness and durability. 2. The overall design of the Geely Boyue integrates Chinese cultural elements with international aesthetic trends, featuring a dynamic and refined exterior and a light luxury and elegant interior. The Geely Boyue incorporates many Chinese-inspired designs, such as the family-style "water ripple" grille, the Chinese jade Ruyi-shaped front fog lamp chrome trim, and the main dashboard inspired by the West Lake arch bridge and the center console inspired by Chinese calligraphy, making the overall design more aligned with the aesthetic preferences of Chinese consumers. 3. The design of the main dashboard of the Boyue is inspired by the arch bridge of Hangzhou's West Lake, with its graceful contour curves bringing a pleasant visual experience to passengers. The water ripple center console panel complements the arch bridge curves, giving a delicate texture as soft as flowing water. The central armrest and door handle, inspired by the freehand strokes of Chinese calligraphy, use chrome plating to highlight the texture. The "continuous and auspicious" fretwork pattern is extensively applied throughout the Boyue's cabin, bringing users a new quality experience from every detail.
16
3
Share

How Many Points Can Be Reduced Through Traffic Law Study?

Traffic law study can reduce up to 6 points. Drivers who participate in online study (accumulating 30 minutes within 3 days) and pass the exam can have 1 point deducted. Participating in on-site study (no less than 1 hour each time) and passing the exam can reduce 2 points. Engaging in traffic safety public welfare activities (1 hour each time) can reduce 1 point. There is no limit to the number of times one can participate in traffic law study, but once a driver has reduced 6 points within a scoring cycle, they can no longer participate. Traffic law study is a measure for licensed drivers who have been penalized for traffic violations. By participating in online traffic safety study and passing the exam, they can have points deducted. This is a convenience measure uniformly deployed by the Traffic Management Bureau of the Ministry of Public Security. According to Article 5 of the Notice on the "Work Standards for Reducing Road Traffic Violation Points Through Traffic Safety Education (Trial)" issued by the Ministry of Public Security on January 14, 2020 (Gongjiao Guan [2020] No. 14), motor vehicle drivers applying to reduce traffic violation points through traffic safety education must participate in corresponding road traffic safety laws, regulations, and related knowledge study, exams, or public welfare activities based on their highest permitted vehicle type and meet relevant requirements to apply for point reduction. Purpose: Traffic law study reduces existing points on a driver's license rather than adding points or replacing penalty points. The points obtained through free study clear existing penalty records. For example, if a driver is penalized 6 points, passing the traffic law study exam can clear these 6 points, allowing a fresh start. Regulations: The number of points that can be deducted after traffic law study depends on how many points the driver had before participating, but the total accumulated points cannot exceed 11. Regardless of participation in traffic law study, a driver's license only has 12 points. Traffic law study only reduces existing points and does not increase the total to 18 points. Specific considerations are as follows: Eligible Participants: Motor vehicle drivers holding a People's Republic of China driver's license, regardless of the permitted vehicle type or whether they are commercial vehicle drivers, can participate in traffic law study and must engage in corresponding road traffic safety laws, regulations, and related knowledge study and exams based on their highest permitted vehicle type. Specific Rules: Motor vehicle drivers participating in online road traffic laws, regulations, and related content study must study continuously for 5 minutes each time, accumulate 30 minutes within 3 days, and then register for an exam within 7 days. Passing the exam reduces 1 point. Drivers can also participate in on-site study, with each session lasting no less than 1 hour. After completing the required study hours, they can apply for an exam, and passing reduces 2 points. Drivers can also participate in offline safety public welfare activities, with each hour-long session reducing 1 point. Accumulating 30 minutes of study within 3 days, with each session lasting no less than 5 minutes and passing the exam, reduces 1 point. Cases Not Accepted: The following situations will not be accepted: The driver had two or more full-point records in the previous scoring cycle. Within a 3-point cycle, the driver was involved in hit-and-run accidents, drunk driving, or the manufacture or alteration of documents or license plates. The driver's license is in the probation period or has not been reviewed on time. The driver has unresolved traffic violation records. The driver has a vehicle with overdue safety technical inspections or unregistered deregistration. The driver has already reduced the maximum of 6 points within the cycle.
17
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.