Engine and transmission, separating

WARNING: This page is about a different car, the 2006 Audi A8, 2005 Audi A8, and 2004 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Engine/transmission removed and attached to scissor lift platform VAS 6131.

Fig 1: Identifying Subframe, Left/Right Of Engine Carrier & Support Elements

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Rotate spindles of support elements - 2 - at left and right of subframe completely downward.
Remove support pins from spindles.
Remove subframe - 3 - to side.

NOTE:

A second technician is required to remove subframe.

Rotate spindles of support elements - 1 - at left and right of engine carrier - 4 - completely downward.

Fig 2: Removing/Installing Bolts For Engine Mount At Left/Right

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Remove bolts - arrows - for engine mount at left and right.
Remove engine carrier.
Remove four base plates of attachments for engine carrier and subframe from scissor lift table VAS 6131.
Equip scissor lift table VAS 6131 with support set VAS 6131/10 and supplementary set, Audi A8 VAS 6131/11 as follows:

Fig 3: Identifying Scissor Lift Platform VAS 6131

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NOTE:

The other attachments remain unchanged.

Platform coordinates	Components of unit support set from support set VAS 6131/10 and supplementary set VAS 6131/11
C6	/10-1	/10-4	/10-5	/11-2
F7	/10-1	/10-4	/10-5	/10-11
B10	/10-1	/10-3	/10-5	/10-12
G10	/10-1	/10-3	/10-5	/10-13

Fig 4: Placing Support Set VAS 6131/10 And Supplementary Set, Audi A8 VAS 6131/11 Attachments On Left Of Engine/Transmission

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Place Support Set VAS 6131/10 and Supplementary Set, Audi A8 VAS 6131/11 attachments on left of engine/transmission as shown in illustration.

Fig 5: Positioning Attachments From Support Set VAS 6131/10 At Right On Engine/Transmission

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Position attachments from Support Set VAS 6131/10 at right on engine/transmission, as shown in illustration.
Twist spindles of attachments upward far enough until all support pins make contact at support points.
Tighten base plates for attachments to 20 Nm onto scissor lift table VAS 6131.
Free up Heated Oxygen Sensor (HO2S) 2 G108 electrical wire.

Fig 6: Removing Catalytic Converter With Front Muffler From Exhaust Manifold

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Remove catalytic converter with front muffler from exhaust manifold - arrows -.

Fig 7: Disconnecting Electrical Connector (Brown) Of Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131 And Free Up Electrical Wire

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Disconnect electrical connector - 3 - (brown) of Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131 and free up electrical wire.

Fig 8: Removing Bolt On Bracket For Exhaust Pipe

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Remove bolt - arrow - on bracket for exhaust pipe.

NOTE:

Flex joint in front exhaust pipe must not be bent more than 10° , otherwise it may be damaged.

Fig 9: Removing Bolt On Bracket For Exhaust System And Catalytic Converter With Front Muffler

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Remove bolt - 1 - on bracket for exhaust system and remove catalytic converter with front muffler.

Fig 10: Removing Water Pipe At Right

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Remove water pipe at right - arrows -.

Fig 11: Disconnecting Water Pipe

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Disconnect water pipe - arrow - and remove.
Free up Heated Oxygen Sensor (HO2S) G39 electrical wire.

Fig 12: Removing Catalytic Converter With Front Muffler From Exhaust Manifold

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Remove catalytic converter with front muffler from exhaust manifold - arrows -.

Fig 13: Disconnecting Electrical Connector (BLACK) Of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130

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Disconnect electrical connector - 2 - (black) of Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130.

Fig 14: Removing Bolt On Bracket For Exhaust Pipe & Heat Shield

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Remove bolt - 1 - on bracket for exhaust pipe.
Remove heat shield - 2 -.
Free up Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) G130 electrical wire.

NOTE:

Flex joint in front exhaust pipe must not be bent more than 10° , otherwise it may be damaged.

Fig 15: Removing Bolt On Bracket For Exhaust System And Catalytic Converter With Front Muffler

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Remove bolt - 2 - on bracket for exhaust system and remove catalytic converter with front muffler.

Fig 16: Disconnecting Electrical Harness Connector On Transmission, To Do This Swing Twist Lock Counterclockwise

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Disconnect electrical harness connector on transmission, to do this swing twist lock counterclockwise - arrow -.

Fig 17: Disconnecting Electrical Connector (Brown) Of Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131 And Free Up Electrical Wire

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Disconnect electrical connector - 1 - (gray) for Engine Speed (RPM) Sensor G28 and free up electrical wire with heat shield.

Fig 18: Disconnecting Coolant Hoses & Connector From Engine Mount

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Disconnect coolant hoses - arrows -.
Disconnect connector from engine mount.

Fig 19: Removing Wiring Harness From Engine Mount & Engine Mount

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Remove wiring harness from engine mount - 1 -.
Remove engine mount - arrows -.

Fig 20: Removing Starter With Connected Wiring Harness

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Remove starter with connected wiring harness - 1 and 4 -
When disassembled, rotate engine to Top Dead Center (TDC) and align marking on transmission housing with marking on converter.

NOTE:

Before removing converter from drive plate, mark position of both components toward each other.

Fig 21: Removing Torque Converter From Drive Plate

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Remove torque converter from drive plate, 3 bolts.

NOTE:

To loosen the torque converter bolts counter hold main bolt of crankshaft.

Remove engine/transmission connecting bolts.

Fig 22: Locating Side Clamping Screws On Scissor Lift Platform VAS 6131 And Pulling Rear Platform Top With Transmission Toward Rear

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Loosen side clamping screws - 1 - on scissor lift platform VAS 6131 and pull rear platform top with transmission toward rear - arrow - , simultaneously push torque converter through opening of drive plate while doing this.
Secure torque converter in transmission so that it cannot fall out.