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Parts overview

The sound exhaust system can be retrofitted on both left
and right-hand drive vehicles.

Parts required:

Assembly set 8T0.071.901

Comprising:

Units

Part number

Description

1

8T0.071.905

Actuator, left

1

8T0.071.905.A

Actuator, right

2

8T0.071.910

Adjustable trim panel, chrome black

6

 

Stainless steel pop rivet, 4 x 9.5 mm (V2A)

2

1K0.253.141.M

Clamping sleeve

1

8T0.071.954

Wiring harness

1

8T0.071.953*

Control unit

1

8T0.071.952

Control unit holder

1

8T0.071.956

Sound exhaust system dual nozzle

1

 

Installation instructions

– Check the parts to ensure they can be installed in the re-

spective vehicle!

You will also need the following for vehicles with 4-cylinder
TDI engines:

Assembly set 8T0.071.901.A

Comprising:

Units

Part number

Description

1

8K0.253.409.E

Middle silencer, complete

1

8K0.253.144.F

Mounting for middle silencer

2

N.903.484.11

Hexagon nut with washer

1

8K0.253.144.M

Mounting for end silencer, right

1

1K0.253.141.M

Clamping sleeve

1

N.903.484.11

Securing nut for end silencer, right

1

8F0.804.172

Heat shielding plate for Cabrio and Sportback

1

8K0 804 172

Heat shielding plate for other vehicles

4

N.907.965.02

Securing nuts for heat shielding plate

4-cylinder TDI engines require the diffuser for the dual ex-
haust system 

⇒ 

 Electronic parts catalogue.

Installation instructions - Audi A4/A5 (B8 series) 2008 

Edition 11/2012

2

2  Parts overview

Summary of Contents for 2008 A5

Page 1: ...Installation instructions Audi A4 A5 B8 series 2008 Engine sound system For scope of delivery 8T0 071 901 Audi Genuine Accessories Edition 11 2012 Service Service Department Technical Information...

Page 2: ...board supply 4 3 4 Assembly overview of the 4 cylinder TDI exhaust system 8 3 5 Assembling the exhaust system 4 cylinder TDI 9 3 6 Assembly overview of the 6 cylinder TDI exhaust system 13 3 7 Assembl...

Page 3: ...ollow contain all of the information subject to technical changes needed for installation of the sound exhaust system Installation of the sound exhaust system can only be per formed by a qualified wor...

Page 4: ...in the re spective vehicle You will also need the following for vehicles with 4 cylinder TDI engines Assembly set 8T0 071 901 A Comprising Units Part number Description 1 8K0 253 409 E Middle silence...

Page 5: ...gr 70 Remove the glove compartment Rep gr 68 If installed remove the control unit for the digital sound package J525 incl holder Rep gr 91 Right hand drive vehicles Remove the rear seat bench Rep gr...

Page 6: ...trol unit connecting to the on board supply Centre the control unit holder on the insulation matting and mark the drill points 1 Punch mark the drill points Drill the holes using a 3 0 mm drill bit an...

Page 7: ...the control unit on the retrofit wiring harness making sure it engages Screw the control unit to the holder Lay the retrofit wiring harness along the standard wiring har ness to the relay and fuse car...

Page 8: ...chamber Pin the unpinned wire from the vehicle wiring harness into the connector housing provided 1J0 972 751 Pin the unpinned wire from the vehicle wiring harness into the connector housing provided...

Page 9: ...to slot 2 with the connector provided 4B0 972 623 Pin the orange brown wire of the retrofit wiring harness into the vacated slot Unpin the orange black wire slot 16 and pin into slot 1 with the connec...

Page 10: ...e q 20 Nm 5 Nut q replace q 20 Nm 6 Mounting 7 Actuator 8 Exhaust tip q 2x q position according to the body version concerned 9 Pop rivet q 6x 10 Nut 11 Shield q select according to the body version c...

Page 11: ...t of the exhaust system Dispose of pipe clip 1 Removing the Cw trim 3 Unscrew nuts 1 remove clip 2 and remove and discard the Cw trim 3 Removing the shield plate 2 Unscrew nuts 1 and remove shield pla...

Page 12: ...pe cutter VAS 6254 Shortening the middle silencer at right angles using the chain pipe cutter VAS 6254 X 60 mm Continue for all vehicles Position the mountings 1 on the middle silencer 2x Fit the new...

Page 13: ...the exhaust tips on page 12 Assembling the actuators Position the mountings onto the actuators Place the actuators in the installation position attach the connectors position and tighten the mountings...

Page 14: ...nsion x right Rotate the clamping sleeves so that the screw ends do not protrude over the bottom edge of the clamping sleeve Tightening torques Page 8 Installation instructions Audi A4 A5 B8 series 20...

Page 15: ...gr 26 4 Actuator 5 Exhaust tip q 2x q position according to the body version concerned 6 Pop rivet q 6 x 7 Nut q replace q 20 Nm 8 Mounting 9 Actuator 10 Sound exhaust sys tem dual nozzle 3 7 Assembl...

Page 16: ...he Y pipe 3 Position the plastic or wooden part 1 on the dual nozzle 2 Hammer the dual nozzle 2 into the Y pipe 3 using the soft head hammer The dual nozzle is now in the installation position Install...

Page 17: ...arrow Assembling the exhaust tips Select the punch point to match the body version and drill a 4 0 mm hole A Coup Cabrio B Saloon Avant and Sportback vehicles from model year 2012 C Sportback vehicle...

Page 18: ...exhaust system so there is no tension Rep gr 26 and Fig Aligning the exhaust tips on page 16 Aligning the exhaust tips Dimension x left dimension x right Rotate the clamping sleeves so that the screw...

Page 19: ...the exhaust tips with matt black paint Note The genuine AUDI replacement exhaust system holds ECE type approval E24 031446 It is therefore not necessary to car ry any additional documents with the sys...

Page 20: ......

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