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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Repair Manual
Audi A4 2008 ➤
Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD
Edition 10.2007
Service
Service Department. Technical Information
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
List of Workshop Manual Repair Groups
Repair Group
00 - Technical Data
39 - Final Drive and Rear Final Drive
Technical information should always be available to the foremen and mechanics, because their
careful and constant adherence to the instructions is essential to ensure vehicle road-worthiness and
safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a
matter of course, be observed.
Service
All rights reserved.
No reproduction without prior agreement from publisher.
Copyright © 2008 Audi AG, Ingolstadt A005A502821
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Contents
00 - Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 General Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Rear Final Drive Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2 Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 Powertrain, Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1 Transmission Allocation, Ratios, Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2 Transmission Allocation, Ratios, Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
39 - Final Drive and Rear Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Gear Oil, Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Description and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Driveshaft Assembly Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Rear Final Drive Assembly Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Fastener Tightening Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Removal and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Driveshaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Driveshaft, Separating from Rear Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.3 Rear Final Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.4 Right Flange Shaft Seal, with Rear Final Driver Removed . . . . . . . . . . . . . . . . . . . . . . . . 22
4.5 Left Flange Shaft Seal, with Rear Final Drive Removed . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.6 Flange Shaft Protective Ring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.7 Flange/Driveshaft Seal, with Rear Final Drive Removed . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.8 Flange/Driveshaft and Seal, with Rear Final Drive Removed . . . . . . . . . . . . . . . . . . . . . . 30
4.9 Flange/Driveshaft Seal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
5 Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
Contents i
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
ii Contents
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
00 – Technical Data
1 General Information
⇒ “1.1 General Repair Information”, page 1
⇒ “1.2 Components”, page 1
⇒ “1.3 Rear Final Drive Identification”, page 2
1.1 General Repair Information
To ensure perfect and successful transmission repairs, the great‐
est care and cleanliness as well as the use of good and proper
tools is essential. The usual basic safety precautions also apply
when carrying out vehicle repairs.
A number of generally applicable instructions for individual repair
operations, which are otherwise mentioned at various points in
this repair manual, are summarized under the term “components”
⇒ page 1 .
1.2 Components
Rear Final Drive
♦ Allocate bolts and other components according to final drive
code using the ⇒ Electronic parts catalog .
♦ When installing a new rear final drive unit, check the oil level
in the rear final drive and top up if necessary ⇒ page 6 .
♦ Capacities and specifications, Audi A4 ⇒ page 5 .
♦ Capacities and specifications, Audi A5 Coupe ⇒ page 5 .
♦ Clean contact surfaces when repairing mounting brackets and
waxed components. Contact surfaces must be completely free
of oil and grease.
♦ Thoroughly clean all connections and the surrounding area
before disconnecting.
O-Rings, Gaskets, Seals
♦ O-rings, gaskets and seals must be replaced.
♦ After removing gaskets and seals, always inspect the contact
surfaces at housing or shaft for burrs resulting from removal,
or for other signs of damage.
♦ Thoroughly clean housing joint surfaces before assembling.
♦ Before installing radial shaft seals, lightly oil outer circumfer‐
ence and fill space between sealing lips -arrow- halfway with
sealing grease -G 052 128 A1- .
♦ The open side of the gaskets points toward the fluid to be
sealed in.
♦ Lightly lubricate O-rings before installing to prevent them from
being crushed when inserting.
♦ When replacing seals and gaskets, check the oil level in the
rear final drive and fill if necessary ⇒ page 6 .
Fasteners
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
1. General Information 1
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
♦ Do not over stretch circlips.
♦ Always replace damaged or over stretched circlips.
♦ Circlips must locate properly in the groove.
♦ Replace spring pins. Installation position: Slit -A- should be in
line with the line of force-arrow-.
Bolts and Nuts
♦ Loosen and tighten the cover and housing mounting bolts or
nuts in a diagonal sequence.
♦ Delicate parts must not be cross-threaded. Loosen and tighten
in stages in a diagonal sequence.
♦ The tightening specifications stated apply to non-oiled nuts
and bolts.
♦ Replace self-locking bolts and nuts.
♦ Clean threads of bolts that were applied with locking fluid using
a wire brush (does not apply to driveshaft bolts: these must be
replaced). Then insert bolts with locking fluid -
AMV 185 101 A1- .
♦ Threaded holes into which self locking bolts or bolts coated
with locking fluid are installed, must be cleaned (e.g. tap).
Otherwise there is a risk that the bolts will shear the next time
they are removed.
1.3 Rear Final Drive Identification
The rear final drive 0BD is allocated in the Audi A4 from MY 2008
and in the Audi A5 Coupe from MY 2008 and has the following
transmissions:
♦ 6 speed manual transmission 0B2 all wheel drive
♦ 6 speed automatic transmission 0B6 all wheel drive
Allocation, Audi A4 ⇒ page 5 .
Allocation, Audi A5 Coupe ⇒ page 5 .
Location on Rear Final Drive
Final drive 0BD, code letters and manufacture date -arrow-
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
2 Rep. Gr.00 - Technical Data
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
-Arrow A- Front Final Drive 0BD with Replacement Part Number
(example: 0BD 500 043A)
-Arrow B- Code Letters “JTN”
-Arrow C- Rear Final Drive Manufacture Date
Exam‐
ple:
F 292 3242
I I I
Production year
-2006-
F = 2006,
G = 2007,
H = 2008, etc.
Production date
-292nd calendar day-
(always given in
three-digit for‐
mat)
day of manufacture
serial number
Further data can be ignored.
Note
When installing a new rear final drive unit, the final drive code, the
PR number and the vehicle engine code must be verified in the
⇒ Electronic Parts Catalog . Only in this way is a correct allocation
guaranteed.
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
1. General Information 3
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
2 Description and Operation
⇒ “2.1 Powertrain, Overview”, page 4
2.1 Powertrain, Overview
• Shown with the 6 speed manual transmission 0B2 AWD.
Note
-Arrows- point in direction of travel.
1 - Engine
2 - Drive plate
❑ With a needle bearing
for the input shaft bear‐
ing
3 - Clutch module
❑ Consists of the pressure
plate, clutch disc and
dual mass flywheel with
transfer plate
4 - Front differential
5 - Input shaft (main shaft)
6 - Front drive pinion with side
shaft
7 - Output shaft
8 - Manual transmission
9 - Center differential
10 - Driveshaft
11 - Rear drive pinion
12 - Rear differential
I - 1st gear
II - 2nd gear
III - 3rd gear
IV - 4th gear
V - 5th gear
VI - 6th gear
R - Reverse gear
S - Intermediate drive gears
❑ With beveloid splines
A1 - Front final drive
A2 - Rear final drive
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
4 Rep. Gr.00 - Technical Data
Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
3 Specifications
Audi A4
⇒ “3.1 Transmission Allocation, Ratios, Capacities”, page 5
Audi A5 Coupe
⇒ “3.2 Transmission Allocation, Ratios, Capacities”, page 5
3.1 Transmission Allocation, Ratios, Capacities
Rear Final Drive 0BD
Identification codes JTN KBU
Manufactured from
to
08.08 01.08
Allocation Engine 3.2L - 195 kW FSI 2.0L - 155 kW TFSI
3.2L - 195 kW FSI
Gear ratios Ratio Z
2
: Z
1
35 : 8 = 4.375 43 : 13 = 3.308
Driveshaft flange diameter 70.7 mm 70.7 mm
Capacities 0.9 liters
Specification Gear oil G 052 145 A1 (container size 0.5 Liter )
Gear oil G 052 145 S2 (container size 1.0 Liter)
Allocation to engine, manual transmission and automatic transmission using the ⇒ Electronic Parts Catalog
3.2 Transmission Allocation, Ratios, Capacities
Rear Final Drive 0BD
Identification codes JTN KBU
Manufactured from
to
08.08 11.07
Allocation Engine 3.2L - 195 kW FSI 3.2L - 195 kW FSI
Gear ratios Ratio Z
2
: Z
1
35 : 8 = 4.375 43 : 13 = 3.308
Driveshaft flange diameter 70.7 mm 70.7 mm
Capacities 0.9 liters
Specification Gear oil G 052 145 A1 (container size 0.5 Liter )
Gear oil G 052 145 S2 (container size 1.0 Liter)
Allocation to engine, manual transmission and automatic transmission using the ⇒ Electronic Parts Catalog
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
3. Specifications 5
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
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39 – Final Drive and Rear Final Drive
1 General Information
⇒ “1.1 Gear Oil, Checking”, page 6
1.1 Gear Oil, Checking
Special tools and workshop equipment required
♦ Drip tray
– Remove the sealing plug -arrow- to check the transmission
fluid .
The oil level is correct when the rear final drive is filled to the lower
edge of the filler hole.
• Transmission oil specification: ⇒ page 5 .
– Insert the plug -arrow- and tighten it.
Tightening Specification: 45 Nm
Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤
Rear Final Drive 0BD - Edition 10.2007
6 Rep. Gr.39 - Final Drive and Rear Final Drive
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Description
Models covered:
- Audi A4 Allroad 2.0L TDI Quattro 6MT (136 HP)
- Audi A4 Allroad 2.0L TDI Quattro 6MT (143 HP)
- Audi A4 Allroad 2.0L TDI Quattro 6MT (170 HP)
- Audi A4 Allroad 2.0L TDI Quattro 6MT (177 HP)
- Audi A4 Allroad 2.0L TDI Quattro 7AT (163 HP)
- Audi A4 Allroad 2.0L TDI Quattro 7AT (177 HP)
- Audi A4 Allroad 3.0L TDI Clean Diesel Quattro 7AT (245 HP)
- Audi A4 Allroad 3.0L TDI Quattro 6MT (240 HP)
- Audi A4 Allroad 3.0L TDI Quattro 7AT (245 HP)
- Audi A4 Allroad 2.0L TFSI Quattro 6MT (211 HP)
- Audi A4 Allroad 2.0L TFSI Quattro 7AT (211 HP)
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