Audi A8 2019 Service Training page 31

Rear axle
The rear axle drive is mounted to the sub-frame by a four-
point mounting system.
Rear axle drive 0G2
Non-locking differential
Rear axle drive 0D3
Sport differential (optional for S8 only)
Sport differential
The sport differential 0D3 is a further development and a
new generation of the sport differential 0BF (2nd genera-
tion). In this second generation two control modules are
responsible for activating the sport differential.
Drivetrain Control Module J775 sends a signal for the
calculated redistribution of torque between the rear wheels
to Differential Lock Control Module J187 via the FlexRay
bus. The differential lock control module activates the sport
differential actuators and initiates the redistribution of
torque.
The sport differential set-up can be influenced using the
Audi drive select modes. Refer to
The ATF and the axle oil of the sport differential are not
subject to routine maintenance.
For more information about the second generation "quattro
with sport differential", refer to eSelf-Study Program
950273, Audi quattro with ultra technology.
New: For the first time, the driver can now see a graphic
display of the distribution of the drive torque to the individ-
ual wheels in the MMI. The menu items "Vehicle" > "Show
vehicle" > "quattro" must be selected in the MMI menu. The
arrows shown on the wheels show the distribution of drive
torque.
Propeller shaft
Rubber-metal bushing
Additional bushing
page 37.
The radial rubber metal bearings, except the additional
bearing, must be mounted in a specified installation posi-
tion described in the workshop manual.
OD3
Vehicle · quattro
Differential Lock Control Module J187 can be
1)
accessed via Address Word 0032.
662_045
662_227
Rear axle drive 0G2
Rubber-metal bushing
662_130
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