8-Speed Automatic Transmission 0D5 - Audi A8 2019 Service Training

8-speed automatic transmission 0D5

The 0D5 transmission made its debut in 2017 in the Audi A7.
At Audi the 0D5 has the internal factory designation
AL552-8Q. The manufacturer, ZF-Getriebe GmbH, uses the
designation 8HP65A. The 0D5 transmission is rated for peak
input torque of 516.2 lb ft (700 Nm).
The transmission operating characteristics can be adjusted
via Audi drive select. Refer to
Transfer case vent
Self-locking center differential
If the double shaft seal between the planetary gearbox/transfer case is leaking, either ATF or MTF will leak from the drainage port. Refer
1)
to fig. 662_139, page 32
30
page 37.
MTF filler and inspection plug for
the transfer case
.
The following aspects of the 0D5 transmission as used in
the A8 are new:
› The MTF pump in the transfer case, previously driven by
the side shaft, is no longer required.
› The bearing for the drive pinion of the front drive has
been optimized for friction by double row angular
contact ball bearings.
› The front differential is lubricated by a new low-viscosity
axle oil.
› The hydraulic impulse storage system, HIS for short, is
replaced by Transmission Fluid Auxiliary Hydraulic Pump
1 V475. The auxiliary hydraulic pump provides a con-
stant supply of ATF, assists the start-stop function and
allows the TFSI engine to be shut off under coasting in
certain situations.
Double shaft seal,
planetary gearbox/transfer box
1)
Side shaft Oil ring