| The direct shift gearbox 02E is also referred to as a dual-clutch gearbox. The engine torque is transferred to the gearbox via the dual-mass flywheel. The layout of the gearbox is basically similar to that of a 6-speed manual gearbox. The two multi-plate "wet" clutches are regulated hydraulically and actuated alternately so that the gearbox is operated like an automatic gearbox, i.e. the gears are engaged automatically (or manually via the tiptronic function). There is no clutch pedal. For further information please refer to → No.308. |
| The selector lever position is no longer transmitted mechanically via the selector lever cable and multi-function switch (gear sensor) as on the automatic gearbox. The selector lever positions and gear changes are transmitted to the gearbox control unit by a separate selector mechanism control unit via CAN bus. This means that gear shifts are effected without a cable. Exception: In selector lever position “P” the selector lever cable is used to mechanically engage the parking lock. |
| The gear oil level is checked and topped up together for the gearbox and front final drive → Chapter. |
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| Only the oil available as a replacement part may be used in the direct shift gearbox 02E. Other types of oil will cause malfunctions and/or failure of the gearbox; for part number refer to → Electronic parts catalogue. |
| The oil level in the bevel box is checked and topped up separately → Chapter. |
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| Only the gear oil available as a replacement part may be used for the bevel box. Other types of oil will cause malfunctions and/or failure of the bevel box; for part number refer to → Electronic parts catalogue. |
| Variation of gear-change points for gradients |
| An additional gear change map automatically selects gear changes for gradients depending on accelerator pedal position and driving speed. |
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| Gear change map for extreme uphill gradients is matched to engine output |
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| Gear change map for extreme downhill gradients is matched to the braking effect of the engine |
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| Increased engine braking effect can also be obtained by directly selecting a specific gear via the tiptronic function, e.g. when towing a trailer on downhill gradients. |
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