Engine And Transmission, Separating

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

Special tools and workshop equipment required

Support Set VAS 6131/10 and Supplementary Set Audi A6 (C6) VAS 6131/12
Scissor-Type Assembly Platform (US) VAS 6131 A

Procedure

Engine/transmission assembly removed and placed on VAS 6131 A.

Fig 1: Positioning Support Elements From Support Set VAS 6131/10 At Left/Right On Subframe
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-- Rotate the left and right mounting element spindles on the subframe all the way down.

-- Remove the mounting pins from the spindles.

NOTE:

A second technician is required to remove the subframe.

-- Remove the subframe to the side.

-- Remove the base plates on the subframe support elements from the VAS 6131 A.

-- Remove the ATF pipe bracket -arrow-.

Fig 2: Removing ATF Line Bracket

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NOTE:

Follow the rules for clean working conditions when working on the transmission. Refer to REPAIR INFORMATION .

-- Remove th ebolt -arrow- and disconnect ATF lines from transmission.

Fig 3: Removing Bolt And ATF Lines From Transmission

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-- Seal the open lines and connections with clean plugs from the VAS 6122.

NOTE:

The support points for front of engine and tunnel cross member remain unchanged.

-- Set up VAS 6131 A with the VAS 6131/10 and VAS 6131/12 as follows:

Fig 4: Identifying Scissor Lift Platform VAS 6131

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Platform Coordinates	Support set VAS 6131/10 and Supplementary Set VAS 6131/12
B4 ¹⁾	/10-1	/10-4	/10-5	/10-13
G4 ¹⁾	/10-1	/10-4	/10-5	/10-12
B7	/10-1	/10-4	/10-5	/10-11
G7	/10-1	/10-4	/10-5	/10-10
C10	/10-1	/10-4	/10-5	/12-1
G10	/10-1	/12-2	/10-5	/12-1
E13 ¹⁾	/10-1	/10-3	/10-5	/10-6
D16 ¹⁾	/10-1	/10-3	/10-5	/10-6
¹⁾ The support elements remain unchanged.

-- Attach the mounting elements from the VAS 6131/10 and VAS 6131/12 to the left side of the engine/transmission subassembly as illustrated.

Fig 5: Positioning/Removing Support Elements From VAS 6131/10 And VAS 6131/12 At Left On Engine

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-- Attach the mounting elements from the VAS 6131/10 and VAS 6131/12 to the right of the engine/transmission assembly as illustrated.

Fig 6: Removing Both Base Plates For Right Support Element On Scissor Lift Table VAS 6131 A

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-- Rotate mounting element spindles upward until all mounting pins come in contact with mounting points.

-- Attach mounting element base plates to VAS 6131 A and tighten to 20 Nm.

CAUTION:

Risk of destroying transmission control module (Mechatronic) with static discharge.

Do not touch contacts in transmission connector with hands.

-- Release electrical connector -1- and remove from transmission.

Fig 7: Disengaging Electrical Harness Connector And Disconnecting From Transmission

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-- Free up the wiring harness to the engine -arrows-.

-- Disconnect electrical connector -arrow- for Engine Speed (RPM) sensor -G28-.

Fig 8: Disconnecting Electrical Connector For Engine Speed (RPM) Sensor G28

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-- Disconnect the electrical connector -2- for the Oxygen Sensor (O2S) 2 after Catalytic Converter -G131- and free up the electrical wire.

Fig 9: Disconnecting Electrical Harness Connector For Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) G131

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NOTE:

In the illustration, the electrical connector is installed.

Ignore -1-.

CAUTION:

Danger of damaging the decoupling element.

Decoupling element must not be bent more than 10°.
Do not load decoupling element on cable.
Do not damage wire mesh at decoupling element.

-- Remove the bolts -1- on the rear bracket for the exhaust system.

Fig 10: Removing Mounting Bolts For Front Exhaust Pipes

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NOTE:

Ignore -2 and 3-.

-- Remove the nuts -1, 2 and 3- and then remove the left front exhaust pipe with the catalytic converter.

Fig 11: Identifying Nut Accessible From Top For Front Exhaust Pipe/Exhaust Manifold

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-- Disconnect the electrical connector -2- for the Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) -G130- and free up the electrical wire.

Fig 12: Disconnecting Electrical Harness Connector For Heated Oxygen Sensor (HO2S) G39

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NOTE:

In the illustration, the electrical connector is installed.

Ignore -1-.

CAUTION:

Danger of damaging the decoupling element.

Decoupling element must not be bent more than 10°.
Do not load decoupling element on cable.
Do not damage wire mesh at decoupling element.

-- Remove the bolts -2- on the rear bracket for the exhaust system.

Fig 13: Removing Mounting Bolts For Front Exhaust Pipes

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NOTE:

Ignore -1 and 3-.

-- Remove the bolt -1- on the right catalytic converter bracket.

Fig 14: Removing Bolt At Right Bracket For Front Exhaust Pipe

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NOTE:

Ignore -2-.

-- Remove the nuts -1, 2 and 3- and then remove the right front exhaust pipe with the catalytic converter.

Fig 15: Identifying Catalytic Converter And Front Muffler To Exhaust Manifold, Removal

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-- Remove the bolts -1 to 10- for the transmission/engine connection.

Fig 16: Identifying Engine/Transmission Threaded Connections

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-- Loosen clamping bolts -1- on sides of VAS 6131 A and pull rear table plate with transmission toward rear -arrow-.

Fig 17: Loosening Bolts -1- On Sides Of VAS 6131 A And Pull Rear Table Plate With Transmission Toward Rear -Arrow-

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