Audi A8 Workshop Manual page 45

– Fit self-locking centre differential -arrow- onto splines of input
shaft, turning slightly at the same time.
– Check that self-locking centre differential can be turned by
hand when it is in position.
– If necessary, renew oil seal for flange shaft (rear)
⇒ „2.4 Renewing oil seal for flange shaft (rear)", page 161
– Renew O-ring on centre differential housing.
– Fit centre differential housing (with rear flange shaft installed)
onto self-locking centre differential, turning flange shaft slightly
if necessary.
– Tighten bolts on centre differential housing in two stages as
follows:
Stage
1 – Tighten bolts -1- and -2- initially to 3 Nm.
2 – Tighten bolts to 16 Nm in sequence -1 ... 7-.
– If necessary, renew oil seal between final drive and gearbox
housing ⇒ page 131
– Install torque converter (push torque converter hub through oil
seal as far as first stop).
– Turn the torque converter, at the same time pressing it inwards
lightly until the slots on the torque converter hub engage in the
drive lugs on the ATF pump gear and the torque converter slips
in noticeably.
Installation depth:
If the torque converter has been correctly installed, the distance
-a- measured between the surface of the mounting holes and the
contact surface of the torque converter bellhousing should be:
• 8 or 12-cylinder petrol engines: at least 5.9 mm
• 10-cylinder petrol engines and 8-cylinder TDI engines: at least
18.9 mm
Caution
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
If the torque converter is not fitted correctly, the torque con‐
with respect to the correctness of information in this document. Copyright by AUDI AG.
verter drive lugs or the ATF pump will be irreparably damaged
when the gearbox is joined to the engine.
Servicing automatic gearbox 09E, four-wheel drive - Edition 12.2011
Tightening sequence
.
Audi A6 2005 ➤ , Audi A8 2003 ➤
.
2. Dismantling and assembling planetary gearbox
41