Power transmissionCapacities
| The 7-speed dual clutch gearbox has two separate and different oil systems. One for the gear oil part -arrow A- and one for the hydraulic fluid part -arrow B-. |
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| Capacities | Hydraulic fluid part in mechatronic unit for dual clutch gearbox -J743- |
| Initial filling | 1 l |
| Change | No change necessary |
| Lubricant | Hydraulic fluid Part number → Electronic parts catalogue „ETKA“ |
| Further information in the part number designates the container size. |

Caution | Risk of damage to gearbox. |
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| Other oils will lead to malfunctions or failure of the gearbox. |
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| It is not possible to check the fill level of the hydraulic fluid part of the mechatronic unit for dual clutch gearbox -J743-. Before installation/removal work, the breather of the mechatronic unit for dual clutch gearbox -J743- must be sealed so that no oil can escape. |
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| If any oil escapes from the hydraulic fluid part of the mechatronic unit for dual clutch gearbox -J743-, it is not possible to replenish it or check the level! |
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| If oil escapes from the gear oil part, it can only be rectified by changing the gear oil. It is not possible to check the fill level. |
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| If the level of oil/fluid is too high or too low in either of the parts, the function of the gearbox will be impaired. |
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04 Transmission