| Explanation of the terms used in this workshop manual. |
| The following explanations are only related to this assembly: Automatic Gearbox 001. They do not claim to be generally applicable. Further information on these terms can be found in → No.40. |
| ATF (Automatic Transmission Fluid) |
| Gear oil for automatic gearbox |
| Gear pump driven by the torque converter. |
| They hold rotating parts in the gearbox. Automatic Gearbox 001 is fitted with a band and a plate brake. As opposed to the clutches the brakes are supported on the gearbox housing. |
| Transfers the engine torque to the automatic gearbox and serves as an hydraulic starting clutch. The torque converter also includes the torque converter lockup clutch. |
| The capability of the control unit to: |
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| Determine measured values and to display them in the measured value block. |
| Ensures the torque increase in the torque converter when starting. |
| Simplifies the technical effort of the gearshift without traction interruption and ensures a uniform gearshift quality. |
| Gearbox speed sender -G38- |
| The sender determines the speed of clutch -K3- and sends it to the automatic gearbox control unit. |
| Vehicle speed sender -G68- |
| The sender determines the speed of the output gear and sends it to the automatic gearbox control unit (not the speedometer). |
| Gearbox oil temperature sender -G93- |
| Monitors the ATF temperature. |
| Together with the brakes they shift the individual gears. |
| Selector lever lock solenoid -N110- |
| Located in the gearshift mechanism close to the selector lever. Prevents the (unintentional) shifting of the selector lever from positions “P” and “N”, as long as the brake pedal is not pressed. |
| Open and shut the oil galleries to the clutches and brakes. |
| Multi-function switch -F125- |
| Electric switch with different functions. Further information on this can be found in → No.40. |
| “Status of the control unit”, to ensure further safe operation in the event of a detected faults, to protect the gearbox from damage and to thereby restrict the driving behaviour as little as possible. |
| When the vehicle is standing the parking gear is block mechanically thereby protecting the vehicle against (unintentional) rolling off. |
| The mechanical part of the automatic gearbox that is switched via clutches and brakes without power flow interruption. |
| Located below the gearbox and is surrounded by the oil pan of the gearbox. Its valves regulate the hydraulic pressure and distribute it via the oil galleries to the gearshift elements (clutches and brakes). |
| Automatic Gearbox Control Unit -J217- |
| The electronic control unit determines the shifting points. The function of the gearbox is monitored via self-diagnosis. If components or sensors fail an emergency running programme is activated to maintain driveability. |
| LC (torque converter lockup clutch) |
| Mechanically transmits the engine torque to the gearbox. |
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