| Explanation of the terms used in this workshop manual |
| The following explanations are only related to this assembly: automatic gearbox 09G. They do not claim to be valid in all cases. |
| ATF (Automatic Transmission Fluid) |
| Gear oil for automatic gearbox. |
| ATF level in the gearbox. To measure the ATF level, see the instructions in the Workshop Repairs Manual. |
| They hold together the rotating components in the gearbox. As opposed to the clutches the brakes are supported on the gearbox housing. |
| Transfers the engine torque to the automatic gearbox and serves as a hydraulic starting clutch. The torque converter also has a direct gear clutch, which bridges it. |
| The capability of the control unit for the automatic gearbox -J217-: |
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| Determine measured values and to display them in the measured value block. |
| In combination with the brakes, the clutches switch between the various forward and reverse gears of the planetary gears, thus providing different forward gear ratios. |
| Fitting locations of electrical cables and components in the gearbox. |
| 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- |
| The multi-function switch -F125- is screwed onto the top of the gearbox housing to the gearshift shaft. It is an electrical switch, which transfers the individual gears selected with the selector lever to the gearbox control unit. It must be correctly set → Chapter. |
| When the vehicle is parked, the selector lever locks the parking gear in position „P“ thereby preventing the vehicle from moving off (unintentionally). |
| 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- |
| Control unit -J217- 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 continuity of vehicle operation. |
| It mechanically transmits the engine torque directly to the planetary gear without converter slip. |
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