Removing Automatic Transmission

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

WARNING: Danger of objects or loads falling down

Risk of squashing or crushing
- Secure components to prevent them from falling down.

Information

Some of the repair illustrations show only one side of the vehicle or a similar component.
Naturally, some steps also have to be performed on the opposite side of the vehicle as well.

Information

The pictures shown in this document may differ from the original.

Only for vehicles with PDCC:

1.1 Loosen distributor -t- for the hydraulic lines.

1.2 Unscrew fastening screws -2- , but leave the distributor hanging.

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Distributor for PDCC hydraulic lines

Mark neutral position of the elector lever -1- on the automatic transmission -2- (-A- ).

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Marking position of selector lever
Disconnect selector lever cable on the automatic transmission.
> 371519 REMOVING AND INSTALLING SELECTOR LEVER CABLE
1. 3.1 Press the selector lever cable -3- off the ball joint -1- using > VAS 6933 - Disassembly tool .
2. 3.2 Unscrew fastening screws -2- on the selector lever cable holder.
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Selector lever cable on selector lever for automatic transmission
Unscrew fastening screws -1- for the heat shield -2- on the automatic transmission.

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Heat shield for automatic transmission
Loosen holder for ATF lines -1- at the front right of the automatic transmission.
1. 5.1 Unclip ATF lines -A- .
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Holder for ATF lines at front of automatic transmission
Place a container underneath to catch emerging ATF.
1. 6.1 Loosen fastening screw -1- for the ATF lines -2- on the automatic transmission.
2. 6.2 Disconnect ATF lines.
3. 6.3 Close off lines and bores on the automatic transmission using suitable stoppers.
4. 6.4 Replace O-rings on the lines.
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Mounting for ATF lines, bottom
Lower the automatic transmission at the rear.
1. 7.1 Support automatic transmission with > VAS 6931 - Transmission and Engine Jack .
2. 7.2 Lower the automatic transmission -1- as far as required with the jack -2- until the fastening screws for the ATF lines at the ATF heat exchanger can be loosened.
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Lowering automatic transmission
Disconnect ATF lines on the heat exchanger.
1. 8.1 Place a container underneath to collect emerging hydraulic fluid!
2. 8.2 Unscrew fastening screws -1- for the ATF lines -2- at the heat exchanger -3- .
3. 8.3 Close off ATF lines and bores in the heat exchanger using suitable stoppers.
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ATF lines, top

Unscrew fastening screws -1- on the heat exchanger -2- .

9.1 Secure the heat exchanger and coolant lines in the tunnel using tie-wraps.

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ATF heat exchanger on automatic transmission, top

Release cable plug -1- at the control valve -2- for thermal management -a- and disconnect -A_ .

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Cable plug for control valve
Unscrew fastening screws -1- on the holders -2- for the coolant lines.
1. 11.1 Pull coolant lines to the rear and secure with a tie-wrap to make it easier to reach the assembly opening for the torque converter.
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Holder for coolant lines
Release electric plug connection -1- for the crankshaft pulse sender at the left of the automatic transmission -a- and disconnect it -A- .
1. 12.1 Loosen the cable clip on the coolant line holder on the left if necessary.
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Plug connection for crankshaft pulse sender
Pull off stopper -1- for assembly opening for the converter screws -arrow- .

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Stopper in assembly opening for converter screws

Information
- Get one or more people to help when installing/removing heavy or difficult-to-reach components.
- This will prevent or reduce the risk of possible damage.
Information
- When loosening or tightening the converter screws, the help of another person is required in order to turn the engine.
- Check the position of the converter screws using a mirror.
- The converter screws must be replaced.
Unscrew fastening screws for the torque converter. To do this, perform the following steps.
> WM, 325019 REMOVING AND INSTALLING TORQUE CONVERTER
Get a helper to turn the crankshaft clockwise using > 9714 - Socket wrench insert-arrow- and torque wrench -1-

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Turning engine for accessing converter screws
> 9595 - Locating pin must now be inserted into the front bore on the transmission bell housing -right arrow- . Then hold it upwards with slight pressure until it engages when the crankshaft is turned.

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Locating pin 9595 for staking the torque converter

Use a mirror -2- to check that the screw on the drive plate is fitted correctly with respect to the assembly opening -1- .

17.1 Correct the position if necessary by turning the crankshaft.

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Checking screw position using a mirror

> 9688 - Bit insert must be fitted on the fastening screw through the opening in the engine block -arrow- .

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Magnetic bit insert 9688 with screw

18.1 > 9687 - Insert part-1- must now be fitted on the bit insert.

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Insert part for bit insert and torque wrench

> 9595 - Locating pin must then be pulled out before loosening the fastening screws.
Loosen and unscrew fastening screw.
1. 20.1 Connect torque wrench without ratchet head to insert part 9687 and loosen fastening screw.
2. 20.2 Unscrew fastening screw by hand after loosening it with the magnetic bit insert.
Remove the other fastening screws in the same way as described in the steps above.
Information
- When removing and installing the transmission, make sure that the torque converter does not slip out of the transmission.
- Secure the torque converter through the bore on the underside of the transmission with a > 9595 - locating pin.
Insert locating pin for securing the torque converter into the bore on the transmission bell housing.
Secure the automatic transmission -1- on the transmission jack -2- with a tension strap -3- to prevent it from falling down.

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Securing automatic transmission with a tension strap (view of removed transmission)
Unclip transmission vent hose -1- from the holder -2- .

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Transmission vent hose
Unscrew aluminium screws -1- for transmission flange on the engine.
1. 25.1 Aluminium screws must be replaced.
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Automatic transmission flange to engine

Information
- Get one or more people to help when installing/removing heavy or difficult-to-reach components.
- This will prevent or reduce the risk of possible damage.
Information
- When removing and installing the transmission, make sure that the torque converter does not slip out of the transmission.
- Secure the torque converter through the bore on the underside of the transmission with a) 9595 - locating pin .
Remove automatic transmission with the help of another person
1. 26.1 Loosen automatic transmission from the engine.
2. 26.2 Carefully pull the automatic transmission to the rear and lower it slowly using the jack.
3. 26.3 Make sure that no wire is kinked or torn off when removing it.
4. 26.4 Make more space for removal by tilting or twisting the automatic transmission if necessary.