Front transmission mount with transmission supports, vehicles with V8 engine, removing and installing

WARNING: This page is about a different car, the 2010 Audi A8, 2009 Audi A8, 2008 Audi A8, 2007 Audi A8, and 2004 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Engine/Transmission Jack VAG 1383 A

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Engine/Transmission Jack V.A.G 1383 A

Removing

Remove left and right front muffler →
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BVJ
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BFM
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 5.2 LITER 10-CYL. 4V ENGINE MECHANICAL, ENGINE CODE(S): BSM
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 6.0 LITER 12-CYL. 4V ENGINE MECHANICAL, ENGINE CODE(S): BSB
.

Fig 2: Left/Right Front Transmission Mount Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove left and right front transmission mount bolts - arrows -.

Fig 3: Left Transmission Support Bolts & Nuts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows - and remove left transmission support with transmission mounting.
Remove nut - 1 - and remove transmission mount from transmission support.

Fig 4: Right Transmission Support Nuts & Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows - and remove right transmission support with transmission mounting.
Remove nut - 1 - and remove transmission mount from transmission support.

Installing

Installation is in reverse order of removal, note the following:

Spacer plate installation instructions

Engine/transmission assembly installed.
Rear transmission mount installed.
Front transmission mount tightened to transmission support but not to subframe.

Fig 5: Measuring Distance Between Transmission Mount And Subframe With Feeler Gauge

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Measure distance - x - between transmission mount and subframe with a feeler gauge.

Fig 6: Left Front Transmission Mount Assembly

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Determine spacer plate thickness - 8 - as follows:

Spacer plate thickness = dimension - x - + 2.5 mm.

NOTE:

Different spacer plate thicknesses make it possible to adjust the necessary thickness exactly.
Install a maximum of 3 spacer plates per side.

Fig 7: Bolt M12X100 With Attached Nut Inserted In Mount Behind Transmission Oil Pan

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert a bolt M12x100 - 1 - with attached nut - 2 - in mount behind transmission ATF oil pan.

Dimension - a - = 13 mm.

Position engine/transmission jack V.A.G 1383 A thrust plate on bolt head as shown in illustration.
Raise engine/transmission assembly slightly with Engine/Transmission Jack V.A.G 1383 A.
Lay determined spacer plate(s) of correct thickness between subframe and transmission mount.
Repeat procedure on opposite side.

Install front muffler →
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 4V ENGINE MECHANICAL, ENGINE CODE(S): BVJ
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 4.2 LITER V8 5V ENGINE MECHANICAL, ENGINE CODE(S): BFM
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 5.2 LITER 10-CYL. 4V ENGINE MECHANICAL, ENGINE CODE(S): BSM
- 26 - EXHAUST SYSTEM, EMISSION CONTROLS for 6.0 LITER 12-CYL. 4V ENGINE MECHANICAL, ENGINE CODE(S): BSB
.

Torque specifications

Left front transmission mount

Fig 8: Left Front Transmission Mount Assembly

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Left front transmission support
Bolt, 23 Nm
Nu, 40 Nm
Washer
Washer
Left heat shield
Left front transmission mount
Spacer - installation instructions
Subframe
Bolt, 23 Nm

Right front transmission mount

Fig 9: Right Front Transmission Mount Assembly

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Bolt
Subframe
Spacer - installation instructions
Right front transmission mount
Right heat shield
Washer
Washer
Nut, 40 Nm
Bolt, 23 Nm
Right front transmission support