Removing Control Mechanism For Transmission

WARNING: This page is about a different variant/trim than selected.

WARNING: Hot fluid

Danger of scalding
→ Let the fluid cool down.

→ Wear personal protective gear.

CAUTION: Pointed or sharp objects

Risk of cracks, pricks or cuts

Wear personal protective gear.

NOTIFICATION

Voltage peaks

Risk of damage to loads or to the control unit
→ Disconnect the battery before removing the component or control unit.

Information

Discharge the transmission electrostatically before removing control mechanism for transmission.
The sealing face of the control mechanism for transmission must not be damaged.
Only loosen the fastening screws with brightly coloured screw heads, otherwise damage can occur.
Control mechanism for transmission is partly secured in the transmission.
If the control mechanism for transmission has to be prised off, get another person to secure the control mechanism for transmission to prevent it from falling out.
To prise off the control mechanism, two fastening screws can be screwed in slightly to prevent the control unit from falling down.
Only set the control mechanism for transmission down with the screw head side facing downwards.
Before installing the control mechanism for transmission, move shift forks and gear actuators into centre position.

Information

Do not touch plug contacts in the connector for the transmission with your hands.
When prising out the tappets, do not use the sensors for support.

Carefully pull ATF suction filter to the rear in -direction of arrow- and remove it from the control mechanism for transmission

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ATF suction filter
Turn electric plug connection in -direction of arrow- and disconnect plug connection.

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Electric plug connection
Unscrew fastening screw -1- , turn connector housing in -direction of arrow- and pull it off.

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Connector housing
Release lock -1- in -direction of arrow- . press in release -_2-_ and disconnect electric plug connection.

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Electric plug connection for rpm sensors
Unscrew fastening screws -1 to 6-.

Fig 1: Transmission Control Mechanism Screws Loosening Sequence
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Control mechanism for transmission

Information

There is no need to loosen the ATF lines from the ATF filter housing in order to remove the transmission control unit.
Remove transmission control unit -3- .

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ATF filter housing
1. 6.1 Unscrew fastening screws -1- .
2. 6.2 Carefully detach ATF filter housing from control mechanism for transmission in -direction of arrow- .
3. 6.3 Carefully remove control mechanism for transmission 2 . in -direction of arrow- .
Remove ATF oil pipes -1 to 5-,

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ATF oil pipes
1. 7.1 Disconnect ATF oil pipes -1 and 2- ,
2. 7.2 Disconnect ATF oil pipes -3 to 5-,
3. 7.3 Replace O-rings, coat with ATF and re-insert ATF oil pipes.
4. 7.4 Check that the ATF oil pipes are fitted correctly.