Audi TT 2007 Workshop Manual page 13

O-rings, oil seals and gaskets
♦ Renew O-rings, oil seals and gaskets.
♦ After removing gaskets and seals, always inspect the contact
surface on the housing or shaft for burrs resulting from removal
or for other signs of damage.
♦ Renew gaskets: completely remove the old gasket and clean
the sealing surfaces thoroughly.
♦ Lightly lubricate O-rings with gear oil before installation to pre‐
vent them being trapped and damaged during assembly.
♦ Lightly oil the outer circumference of oil seals and pack the
space between the sealing lips -arrow- about half full with
grease ⇒ Parts catalogue .
♦ Do not use any other lubricants where gear oil is specified.
Otherwise, there is a risk of problems occurring in the gearbox
hydraulics.
♦ The open side of the oil seal should face the side containing
the fluid.
♦ Observe rules for cleanliness
♦ After installation, check gear oil level and top up as required
⇒ page 66 .
Locking elements
♦ Do not overstretch circlips; renew if necessary.
♦ Circlips must be properly seated in the base of the groove.
Nuts, bolts
♦ Slacken bolts in reverse sequence to the specified tightening
sequence.
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
♦ Nuts and bolts which secure covers and housings should be
with respect to the correctness of information in this document. Copyright by AUDI AG.
loosened and tightened in diagonal sequence and in stages if
no tightening sequence is specified.
♦ Renew self-locking nuts.
♦ Use a wire brush to clean the threads of bolts which are se‐
cured with locking fluid. Then install bolts with locking fluid; for
locking fluid refer to ⇒ Parts catalogue .
♦ The tightening torques stated apply to non-oiled nuts and
bolts.
♦ Where instructions specify a torque setting plus an additional
angle, these bolts must be tightened to the specified torque
and then turned through the specified angle, e.g. 40 Nm + 90°
(90° = a quarter turn).
Direct shift gearbox 02E, front-wheel drive - Edition 12.2006
⇒ page 10 .
Audi TT 2007 ➤
7. Repair instructions
9