Active Select is a system of manual gear shifting in automatic transmissions for Opel, Holden, and Vauxhall vehicles. It was released in the early 2000s. The manual mode enhances the vehicle’s dynamic characteristics. For instance, it ensures a more reliable start on slippery surfaces, and improves manoeuvrability. It is essential for gaining speed as it allows for faster acceleration.
How it works
The Active Select system is available on classic transmissions equipped with a hydraulic torque converter, planetary gear sets, and electronic control. In automatic mode this transmission can adapt to individual driving styles. For example, if a driver prefers a sporty style, gears will be shifted at higher RPMs. To activate the manual mode, the driver slides the gear lever from the “D” position to the left, then briefly moves it to the “+” or “-” position to shift gears up or down. The selected mode and gear are indicated on the dashboard.
Popular transmissions with the Active Select system
| Gearbox code | Manufacturer | Number of speeds | Max engine capacity, L | Max torque, N·m | Car layout | Production start | Model applications |
| AF17 (AW60-41SN) | Aisin | 4 | 1.8 | 180 | FWD | 1998 | Opel Astra; Holden Astra; Opel Zafira |
| AF22 (AW50-40LE) | Aisin | 4 | 2.5 | 250 | FWD | 1995 | Opel Vectra; Opel Astra; Opel Zafira; Holden Zafira |
| AW55-50SN | Aisin | 5 | 3.5 | 330 | FWD | 2000 | Opel Vectra; Holden Epica; Holden Equinox; Opel Signum |
| TF-80SC | Aisin | 6 | 2.5 | 450 | FWD, AWD | 2000 | Opel Astra; Opel Vectra; Holden Zafira; Opel Insignia; Opel Zafira |
| 5L40-E | GM | 5 | 3.6 | 360 | RWD, AWD | 1999 | Holden Caprice WM; Holden Adventra; Holden Commodore; Holden Crewman; Opel GT |
Common malfunctions of transmissions with the Active Select system
| Malfunctions | Transmissions |
| The solenoids get clogged due to soiling of fluid, which causes jerks in transmission operation. | AW55-50SN; TF-80SC; 5L40E; AF17 (AW60-41SN) |
| The planetary gear sets wear out due to oil starvation. | AF17 (AW60-41SN); AW55-50SN |
| The seal starts leaking after a while. | AF22 (AW50-40LE) |
| The clutch drum gets cracked. | AF22 (AW50-40LE) |
| The transmission starts slipping due to wear of the torque converter friction plate. | TF-80SC |
| The transmission pump can break down after continuous driving at high speed. | 5L40E |
| The rubber moulded pistons can become damaged by overheating. | 5L40E |
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