| The 001 automatic 4-speed gearbox is fitted with four hydraulically controlled gears. 3rd and 4th gear are controlled mechanically when the clutch cancellation is closed, thus avoiding torque converter slipping. |
| The automatic gearbox control unit -J217- receives information from the components which influence the gear change. This is transmitted to the slide box with the solenoid valves which in turn activate the final control elements via hydraulic connections. |
| So that in case of an electrical/electronic component failure or a short circuit the cause can be quickly discovered, the control unit is fitted with a fault memory. Faults are recognised via electrical signals and are memorised in the fault memory. |
| The torque converter is fitted with a cancelling clutch. The clutch cancellation closes according to load and speed and may mechanically drive 3rd and 4th gear (without slipping). |
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