Your Audi may combine and/or switch between automatic and manual transmission thanks to the dual clutch, direct-shift gearbox (S Tronic).
The S Tronic transmission offers both impressive performance and low operating costs by fusing the practicality of an automatic gearbox with the effective, dynamic nature of a conventional manual gearbox.
The S Tronic differs from other Audi options including the six-speed DSG Multitronic, Tipttronic, and R Tronic thanks to its special seven-speed, dual-clutch transmission.
The seven-speed dual-clutch transmission allows for smooth yet quick shifting with hardly any disruptions in the power flow. Dynamic acceleration is made possible by the smooth transmission, producing thrilling performance and a thoroughly enjoyable driving experience.
Not only that. The S Tronic’s revolutionary design by Audi has ensured that the system places a high priority on fuel efficiency, which helps to lower fuel consumption and pollutant emissions.
In This Article...
What exactly does S tronic on an Audi mean?
The S tronic combines the practicality of a contemporary automatic transmission with the effectiveness and sportiness of a traditional manual gearbox. Rapid shifting is possible with almost no audible interruption of the power flow thanks to the dual-clutch transmission. Dynamically and smoothly, the car accelerates.
Two multi-plate clutches and two sub-transmissions make up the 7-speed S tronic. Although both of these are constantly in use, only one of them is ever being powered by the engine. For instance, the second transmission section is already in fourth gear while the driver accelerates in third gear. By switching the clutches, one opens and the other closes, shifting the gears is accomplished. It just takes a few hundredths of a second to switch gears, with hardly any loss of power. The car passes by so swiftly and smoothly that the driver hardly notices it.
The two unique oil systems of the 7-speed S tronic are one of its distinguishing qualities. Gear sets, the center differential, and the front-axle differential are all lubricated independently, while the dual clutch, mechatronics module, and oil pump are all supplied by their own oil circuits. The benefit of this is that there is no need to compromise on the lubricant being used, ensuring a sufficient amount of oil for all components.
S tronic combines the practicality of a modern automatic transmission with the effectiveness and sportiness of a traditional manual transmission.
With the 7-speed S tronic, the driver has the option of manually shifting gears or letting the transmission do it for them. In manual mode, he chooses when to shift gear and does so by pulling the selector lever or using the paddles on the steering wheel. With the Drive program (D) and Sport program, he can alter the way the transmission behaves when shifting gears in automatic mode (S). The efficiency mode can also be chosen in conjunction with Audi drive choose, which is available for various models. This has a modified shift schedule and an energy-saving default configuration. When efficiency mode is engaged, for instance, the car automatically enters coasting mode and keeps moving without any engine braking losses if the driver lifts their foot off the accelerator.
While we put a lot of emphasis on dynamic performance, we also place a high value on efficiency because high efficiency lowers fuel consumption and pollutant emissions.
Is there a possibility that something could go wrong with all the sophisticated technology and high-tech components? The S Tronic gearbox is dependably dependable when maintained, which is good given the high maintenance expenses. Visit our site on Audi Reliability to learn more if you’re interested.
Check out our articles on the Audi Virtual co*ckpit, Audi Quattro, Audi Tech Pack, Audi Engine Codes, and the S Line trim if you need ideas for building a beautiful Audi vehicle.
About The Author: Alasdair Cherry
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In the names of electron tubes (ignitron, klystron, magnetron), devices for accelerating subatomic particles (cosmotron, cyclotron), and more generally in the names of any type of chamber or apparatus used in experiments, the suffix -tron is the result of the combining form extracted from the word “electron” (biotron).
a single-anode mercury-vapor rectifier used for power regulation in which current travels as an arc between the anode and a mercury-pool cathode.
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1. A mass spectrometer that uses sequential radio frequency applications to bring ion frequencies into resonance in order to measure the mass distribution of orbiting ions within a magnetic field.
2. A device for detecting and measuring the mass distribution of ions orbiting in an applied magnetic field, either by applying a constant radio-frequency signal and changing the magnetic field to sequentially bring ion frequencies equal to the applied radio frequency into resonance, or by quickly changing the radio frequency and using Fourier transform techniques (an operation that transforms one complex-valued function of a real variable into another one).
The term “Fourier transform techniques” refers to the analysis of mathematical functions or signals with respect to frequency rather than time. It is utilized in electronics, control systems engineering, and statistics.
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1. A vacuum tube that produces microwaves by manipulating the flow of electrons using electric and magnetic fields.
For usage in radar applications, the microwave radiation is either pulsed, as is necessary, or continuous, as is necessary for microwave cookery.
2. A diode vacuum tube that produces power at microwave frequencies by using an external magnetic field to control electron flow.
Is S tronic trustworthy?
If properly maintained, the S tronic dual-clutch transmission is dependable. DSGs, of which the S Tronic is one, cost a lot to repair when they malfunction.
What distinguishes the 6 speed from the S tronic?
The S tronic combines the comfort of a contemporary automatic transmission with the effectiveness and sportiness of a traditional manual transmission. With almost minimal traction loss, the dual-clutch transmission enables quick changing. The car accelerates fluidly and in unison.
Audi tested the dual-clutch transmission technology in the Sport quattro S1 as early as 1985 and was pleased with the results. a passion that Audi owners can comprehend. due to the 6-speed S tronic’s quick gear shifts (less than 0.2 seconds). It incorporates two multi-plate clutches that control various gears for this purpose. The torque is transferred to the gears of the odd gears by a big clutch through a solid shaft. The straight gears are powered by a small second clutch connected to a hollow shaft. Only one of the two partial transmissions is permanently attached to the engine, although both are perpetually operational. For instance, just the first half transmission sends power when the car accelerates in third gear. But the fourth gear is already engaged in the second half transmission. When changing, not only does the gear shift but also the clutch, all in the space of a few hundredths of a second. He moves so quickly and fluidly that the driver hardly notices him.
S tronic combines the comfort of a contemporary automatic transmission with the effectiveness and sportiness of a traditional manual transmission.
The 6-speed S tronic gives the driver the option of selecting fully automatic mode with the programs D (Drive) and S (Sport) or manually shifting the gears with the optional paddle shifters. Either way, the shifting experience is precise and incredibly athletic.
Stronic, despite all the dynamics, is also incredibly effective. They use less fuel and emit fewer pollutants because to their excellent efficiency.
Audi S tronic has a dry or wet clutch.
The Audi Q3 offers a selection of three gasoline and two diesel engines paired with either front-wheel or quattro drive. They produce power in the 110 kW (150 hp) to 169 kW range (230 hp). They are all four-cylinder turbo engines with a particulate filter that are strong, refined, and efficient. Start-stop functionality is a standard component.
The TFSI engines come in a variety. The 1.5-liter gasoline engine, which has 250 Nm (184.4 lb-ft) of torque and 110 kW (150 horsepower), is the base model. It is only offered with front-wheel drive. The Audi Q3 35 TFSI accelerates from 0 to 100 km/h (62.1 mph) in 9.6 seconds and reaches a top speed of 211 km/h with the manual six-speed transmission (combined fuel economy in l/100 km: 6.3 – 6.0* (37.3 – 39.2 US mpg); combined CO2 emissions in g/km: 145 – 139* (233.4 – 223.7 g/km)) (131.1 mph). The race takes 9.2 seconds with the propulsion power stopping at 207 km/h if the customer opts for the seven-speed S tronic (combined fuel economy in l/100 km: 5.9 – 5.7* (39.9 – 41.3 US mpg); combined CO2 emissions in g/km: 134 – 130* (215.7 – 209.2 g/km) (128.6 mph). The efficient cylinder on demand technology is a big factor in the low fuel usage. At low and medium loads, camshaft actuators close the intake and exhaust valves to momentarily shut off the second and third cylinders. Fuel injection and ignition are suppressed by the engine management system.
Because of its aluminum crankcase, the little 1.5 TFSI is incredibly light. It has an iron coating on its cylinder linings that is sprayed via plasma spraying to greatly reduce friction. The exhaust funnel built into the cylinder head works in conjunction with the cooling module to provide effective thermal control. The (relative) charging pressure produced by the turbochargers can reach 1.3 bars. With a fuel injection pressure of up to 350 bar, the common-rail system produces low particle emissions, spraying, and an evenly distributed flame front.
There are two different variants of the 2.0 TFSI. It is always paired with the quattro drive and seven-speed S tronic. It produces 140 kW (190 hp) at the first power level and 320 Nm (236.0 lb-ft) of maximum torque at 1,500 to 4,200 rpm. The consequence is that the Audi Q3 40 TFSI accelerates from 0 to 100 km/h (62.1 mph) in 7.4 seconds and reaches a top speed of 220 km/h (combined fuel consumption in l/100 km: 7.5 – 7.2* (31.4 – 32.7 US mpg); combined CO2 emissions in g/km: 170 – 164* (273.6 – 263.9 g/mi) (136.7 mph). The most potent variant, the Audi Q3 45 TFSI, ensures sporty performance with 169 kW (230 hp) and 350 Nm (258.1 lb-ft) at 1,500 to 4,400 rpm (combined fuel consumption in l/100 km: 7.6 – 7.3* (30.9 – 32.2 US mpg); combined CO2 emissions in g/km: 173 – 167* (278.4 – 268.8 From a standing start, it takes 1.1 seconds less to reach 100 km/h (62.1 mph), and its highest speed is 233 km/h (144.8 mph).
Additional manifold injection is one of the two-liter gasoline engine’s technical improvements. In a variety of engine speeds and load conditions, it takes the place of FSI direct injection. Even when there are engine-out emissions, this lowers particle production. The Audi valvelift system optimizes internal gas flow by adjusting outlet-valve timing across two stages. Efficiency is further improved with a small rotary valve module for thermal control and an exhaust manifold built into the cylinder head.
Among the diesel engines in the portfolio is a 2.0 TDI with 110 kW. (150 hp). Two balancer shafts in the crankcase, reduced internal friction, and a common-rail system with a 2,000 bar maximum pressure are some of its highlights. The smooth-running engine turns the camshaft with 340 Nm (250.8 lb-ft) of torque at 1,750 to 3,000 rpm. With S tronic and front-wheel drive, the Audi Q3 35 TDI accelerates from 0 to 100 km/h (62.1 mph) in 9.2 seconds before reaching a top speed of 207 km/h (combined fuel economy in l/100 km: 4.9 – 4.7* (48.0 – 50.0 US mpg); combined CO2 emissions in g/km: 128 – 123* (206.0 – 197.9 g/mi)) (128.6 mph). It goes from 0 to 100 km/h (62.1 mph) in 9.3 seconds and reaches a top speed of 211 km/h with the six-speed manual transmission and quattro drive (combined fuel consumption in l/100 km: 5.7 – 5.5* (41.3 – 42.8 US mpg); combined CO2 emissions in g/km: 150 – 145* (241.4 – 233.4 g/mi)) (131.1 mph).
140 kW are generated by the 2.0 TDI at its maximum power setting (190 hp). It only comes with a quattro driving system and is mated to a seven-speed S tronic transmission. It produces 400 Nm (295.0 lb-ft) of torque at 1,750 to 3,250 rpm. As a result, the Audi Q3 40 TDI accelerates from 0 to 100 km/h (62.1 mph) in 8.0 seconds and tops out at 221 km/h (combined fuel consumption in l/100 km: 5.6 – 5.5* (42.0 – 42.8 US mpg); combined CO2 emissions in g/km: 148 – 145* (238.2 – 233.4 g/mi) (137.3 mph).
The new Audi Q3’s seven-speed S tronic transmission pairs with each engine to power the vehicle. Sporty acceleration is made possible by its lower gears’ relatively close ratios, while the top gear’s extraordinarily wide ratio lowers engine speed and, thus, fuel consumption. When the speed drops below 7 km/h, the start-stop mechanism turns off the engine (4.3 mph). For the Q3 35 TFSI and Q3 35 TDI, a six-speed manual transmission is an alternative.
There are two types of the small, quick-shifting dual-clutch transmission. Wet clutches are used with all engines, excluding the Q3 35 TFSI, in the seven-speed S tronic. The clutch is cooled and the wheelset is lubricated via a common oil circuit. This enables the strong gasoline and diesel engines’ high torques to be communicated. The high temperatures produced during acceleration and gear changes can be efficiently dissipated through oil cooling. Due to the reduced torque of 250 Nm in the entry-level gasoline version, the two dry clutches function without their own oil supply (184.4 lb-ft). This significantly boosts effectiveness. A little gear pump that is physically powered delivers oil to the gearwheels. A second, electrically powered pump may be triggered in particular circ*mstances, such as when starting on a hill, to handle the extra demand. Both variants of the seven-speed S tronic provide a freewheel function, which activates in various circ*mstances if the driver lifts their foot off the accelerator, in conjunction with Audi drive choose. In dynamic and offroad modes, it is disabled.
The quattro permanent all-wheel-drive comes standard with the two-liter gasoline engines and the most potent diesel engines, in contrast to the Audi Q3 35 TFSI, which only uses front-wheel drive. It significantly improves the new Q3’s traction, stability, and dynamic handling system under all driving circ*mstances. At the middle of it is a hydraulic multi-plate clutch with computerized control. When the driver makes a sporty turn into a corner, for instance, the management system can immediately start shifting some of the torque from the front axle to the rear axle. The SUV is forced into the curve as soon as the driver picks up speed. The wheel-selective torque control, a software feature that further improves handling through brief, targeted brake interventions on the individual wheels, closely cooperates with the quattro drive when operating at the boundaries of performance.
*The ranges for fuel consumption and CO2 emissions are based on the wheels and tires being used.
The equipment, information, and costs mentioned in this paper apply to the German model line. Subject to modification without notification; omissions and errors exempted.
