S tronic is an automatic transmission with dual clutch, which Audi models have been equipped with since 2005. Before that, like other Volkswagen Group vehicles, it was called DSG. It combines the advantages of automatic and manual transmissions to ensure optimal user comfort. If desired, the driver can also change gears manually. A set of S tronic gearboxes is a copy of the DSG gearbox that the Volkswagen Group installs in a large number of Škoda, SEAT and Volkswagen brand vehicles. Some of them are specially designed for longitudinal engines and can only be found in various Audi models.
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How does S tronic work?
The gearbox construction is provided with two main shafts with an odd and an even number of gears, each of which is connected to the respective clutch. When a gear is engaged, the electronic transmission control analyzes the signals from the various sensors, while gear selection is to be activated on the second axle. To switch to manual mode, push the selector lever into the corresponding recess or use the shift paddles.
Beliebte_S_tronic_Versionen”>Beliebte_S tronic Versionen
| Index | Number of gears | Max. engine torque, Nm | Displacement, L | Engine type | Clutch type | Year of manufacture | Applicable models |
| DL501 (0B5) | 7 | 550 | 4.2 | Longitudinal engine | Wet | 2008 | Audi A4 B8; Audi A7 4G; Audi A6 C7; Audi Q5 8R; Audi A5 8T |
| DL800 (0BZ) | 7 | – | – ; | Longitudinal motor | Wet | 2013 | Audi R8 4S; Audi R8 42 |
| DL382 (0CK/0CL) | 7 | 500 | 3.0 | Longitudinal engine | Wet | 2015 | Audi A4 B9; Audi A5 F5; Audi A5 C7, C8; Audi Q5 FY |
| DQ250 (02E) | 6 | 350 | 3,2 | Transverse engine | Dry | 2003 | Audi TT 8J; Audi A3 8P; Audi Q3 8U |
| DQ500 (0BT, 0BH, 0DL) | 7 | 600 | 2, 5 | Transverse engine | Wet | 2008 | Audi A3 8V; Audi RS3; Audi Q3 8U |
| 0СJ | 7 | 400 | 2.0 | Longitudinal engine | Wet | 2016 | Audi A4 8W |
Frequent defects of S tronic
| Defects | Transmission |
| The double clutch mechanism breaks down quickly. | DL501 (0B5). |
| If the oil is not changed in time, the solenoid valves will become clogged with wear debris from the clutch. | DL501 (0B5); DQ250 (02E); DQ500 (0BT, 0BH, 0DL). |
| The clutch cover bearing will be damaged. | DL501 (0B5). |
| The gearbox is jerking and causing excessive vibration. | DQ250 (02E). |
| The gearbox is overheating if the heat exchanger is not cleaned regularly. | DQ500 (0BT, 0BH, 0DL). |
