NPR
43:13 = 3.308

75.5 mm
70.7 mm
See the Fluid Capacity Tables;
Rep. Gr.03;

Rear Final Drive 0BF Transmission
Allocations, Ratios, Capacities
Final drive
Z2:Z1

Driveshaft flange diameter
Gear oil - capacity
• For rear final drive (differential and
pinion)
• No replacement interval
Gear oil specification
ATF capacity
• For the hydraulic control unit and
chambers
• No replacement interval
ATF specification

MKU
37:9 = 4.111

0BF

75.5 mm
See the Fluid Capacity Tables;
Rep. Gr.03;

Rear Final Drive –
0BC, 0BD, 0BE, 0BF

Rear Final Drive
Code letters
Ratio

Refer to the Parts Catalog.

Refer to the Parts Catalog.

The following information can be found in the Electronic Parts Catalog (ETKA):
• Date of manufacture
• Gear oil specification
• Engine, manual transmission and automatic transmission allocation using code
letters and PR numbers.

Audi A7 Reference Specification Book

•

September 2013

145

Fastener Tightening Specifications
Component
Driveshaft heat shield
Intermediate bearing bracket
Lock plate to driveshaft 1)

-Fastener
Size
-

Final Drive 0BC, 0BD
Balance weight to rear final drive bolt 3)
Balance weight to rear final drive bolt 4)
Crossmember to rear final drive bolt
Heat shield to crossmember bolt
Subframe 2)
- Bolt
- Bolt
Gear Oil Drain and Inspection Plugs 0BE, 0BF
Drain plug for gear oil 1)
Inspection plug for gear oil 1)
Final Drive 0BE, 0BF
All Wheel Drive Clutch Valve 2 -N446- to
hydraulic control unit housing bolt
All Wheel Drive Pump -V415- to hydraulic
control unit housing bolt
ATF check plug 1)
ATF drain plug 1)
Bracket for wiring harness to rear final drive
bolt
Gear oil drain plug 1)
Gear oil inspection plug 1)
Gear oil checking plug 0BC
Gear oil checking plug 0BD
Hydraulic control unit 6)
- Bolt 5)
M8 x 50
- Bolt
M8 x 30

Left line to Hydraulic Control Unit Housing
nut
Oil Pressure/Temperature Sensor
Right Flange Shaft to Final Drive bolt 1)

146

Audi A7 Reference Specification Book

Nm
24
20
30 plus an
additional 90°
(¼ turn)
22
55
55
20
55
95
15
15
2.5
5
15
15
9
15
15
30
45
20
see tightening
sequence
→ Hydraulic
Control
Module, 0BE,
0BF
30
10
50 + 90°

•

September 2013

Component
Right line to Hydraulic Control Unit Housing
nut
Shuttle valve
Gear Oil Drain and Inspection Plugs, 0BE, 0BF
ATF drain plug 1)
ATF inspection plug 1)
1)
2)

3)

4)

5)

Nm
30
8
15
15

Replace
For bolt tightening clarification, refer to ElsaWeb, Final Drive 0BC, 0BD Overview
items 2 and 3
For bolt tightening clarification, refer to ElsaWeb, Final Drive 0BC, 0BD Overview
item 1
For bolt tightening clarification, refer to ElsaWeb, Final Drive 0BC, 0BD Overview
item 9
Coat the thread with Sealing Compound -D 176 501 A1For bolt tightening clarification, refer to ElsaWeb, Final Drive 0BE, 0BF Overview
items 7, 8 and 9

Rear Final Drive –
0BC, 0BD, 0BE, 0BF

6)

-Fastener
Size

Audi A7 Reference Specification Book

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September 2013

147

Driveshaft to Rear Final Drive
Tightening Specification

Always replace the driveshaft bolts 1.
Step
1
2
3
1)

Bolts
1
1
1

Tightening Specification/Additional Turn
Next to the color dot 30 Nm 1)
30 Nm
Plus an additional 90° (¼ turn)

By doing this, the CV joint is pushed slightly to the opposite side and imbalance is
avoided.

148

Audi A7 Reference Specification Book

•

September 2013

Suspension, Wheels,
Steering
General, Technical Data
Chassis
Front
Suspension
Rear
Suspension

Five link front axle, upper and lower transverse link,
transverse stabilizer, twin gas-filled strut coil spring
or optional air spring damper with variable level and
damping characteristics.
Track controlled axle, upper and lower transverse link,
transverse stabilizer, independent suspension, twin gasfilled struts with coil spring or air spring with variable level
and damping characteristics.

FWD/AWD

Wheelbase
Front track
Rear track
Maximum steering angle
at inner wheel
FWD/AWD

Wheelbase
Front track
Rear track
Maximum steering angle
at inner wheel

Heavy duty
suspension
1BB 1)

Sport
suspension
1BE 1)

2917
1645
1639

2916
1641
1638
39°36’

2918
1646
1639

Sportback
Air suspension
Heavy duty
standard suspension
suspension air
1BK
suspension 1BS
in “Comfort” setting 1) in “Comfort” setting
2915
1645
1636

1)

2915
1635
1644
39°36’

Front/rear track width, applies only to 235/55 R 17 (ET30)..

Suspension,
Wheels, Steering

1)

Sportback

Standard
suspension
1BA 1)

Audi A7 Reference Specification Book

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September 2013

149

Chassis (cont’d)
FWD/AWD

Sportback
Sport suspension
Sport suspension air
1BV 1)
suspension on RS

models
2MA 2)

Wheelbase
Front track
Rear track
Maximum steering angle
at inner wheel
FWD/AWD

Wheelbase
Front track
Rear track
Maximum steering angle
at inner wheel
1)
2)
3

2918
1646
1639

2916
1635
1626
39°36’

Sportback
Sport suspension air Sport suspension on
suspension
RS models
2MB
2MC 1)
in “Sport” setting 3)
2916
2917
1641
1635
1632
1628
39°36’

Front/rear track width, applies only to 235/55 R 17 (ET30).
Front/rear track width, applies only to 275/35 R 20 (ET35).
Front/rear track width, applies only to 255/40 R 19 (ET32).

Front Suspension
Front Suspension Tightening Specifications
Component
Air line connecting piece
Air spring boot clamp
Air spring shock absorber-to-shock
absorber fork bolt 1)
Air spring shock absorber-to-suspension
strut dome nut 1) 5)
Ball joint-to-wheel bearing housing bolt 1)
Coil spring shock absorber-to-shock
absorber mounting nut 1)
Coupling rod-to-shock absorber fork bolt 1) 3)

150

Fastener
size
-

Nm

-

3
8
40 plus an
additional 180°
(½ turn)
30

-

40
50

-

40 plus an
additional 90°
(¼ turn)

Audi A7 Reference Specification Book

•

September 2013

Fastener
size
-

Coupling rod-to-stabilizer bar bolt 1) 3)
Constant Velocity (CV) joint boot clamp
Drive axle-to-transmission bolt
Drive axle-to-wheel hub bolt 1)

M10
-

Front lower longitudinal member-tosubframe bolt
Guide link-to-subframe bolt 1) 3)

-

Guide link-to-wheel bearing housing nut 1)
Level control system sensor bolt/nut
Shock absorber fork-to-track control arm
nut 1) 3)

-

Stabilizer bar-to-subframe nut 1) 4)
Subframe-to-body bolt 1) 2)

-

Subframe crossbrace-to-subframe bolt 1)

-

-

Subframe heat shield-to-subframe bolt/nut
Tower brace-to-body bolt
Track control arm-to-ball joint nut 1)
Track control arm-to-subframe nut 1) 3)

M12
M14
-

Upper control arm-to-subframe bolt 1) 3)

-

Upper control arm-to-wheel bearing
housing nut 1)
Wheel hub-to-wheel bearing housing bolt 1)

-

1)
2)
3)
4)
5)

-

Nm
40 plus an
additional 90°
(¼ turn)
20
70
200 plus an
additional 180°
(½ turn)
20
70 plus an
additional 180°
(½ turn)
140
9
90 plus an
additional 90°
(¼ turn)
25
115 plus an
additional 90°
(¼ turn)
90 plus an
additional 180°
(½ turn)
9
20
120
140
70 plus an
additional 180°
(½ turn)
50 plus an
additional 90°
(¼ turn)
40
80 plus an
additional 90°
(¼ turn)

Replace fastener(s).
Tighten diagonally and in steps.
Tighten in the curb weight position.
Remove and install the nuts alternating from side-to-side.
Loosen and tighten diagonally.

Audi A7 Reference Specification Book

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September 2013

151

Suspension,
Wheels, Steering

Component

Rear Suspension
Fastener Tightening Specifications
Component
ABS wheel speed sensor-to-wheel bearing
housing bolt
Coupling rod-to-stabilizer bar bolt 1) 2)

Fastener
size
-

Nm

-

9

Cover plate-to-wheel bearing housing bolt
Constant Velocity (CV) joint boot clamp
Drive axle-to-final drive bolt 1)
Drive axle-to-wheel hub bolt 1)

M10
-

Lower transverse link-to-subframe bolt 1) 2)

-

Lower transverse link-to-wheel bearing
housing bolt 1) 2)

-

Shock absorber-to-mount nut conventional 1)
Shock absorber-to-mount nut - electronic
damping 1)
Shock absorber-to-wheel bearing housing
bolt 1) 2)

-

40 plus an
additional 90°
(¼ turn)
40 plus an
additional 90°
(¼ turn)
10
20
70
200 plus an
additional 180°
(½ turn)
70 plus an
additional 180°