1996 AUDI A8 engine

17-1


Lubrication system
components, removing and
installing

WARNING!

Do not re-use any fasteners that are worn or
deformed in normal use.
Some fasteners are designed to be used only
once, and are unreliable and may fail if used
again. This includes, but is not limited to,
nuts, bolts, washers, circlips and cotter pins.
Always follow the recommendations in this
manual-replace these fasteners with new
parts where indicated, and any other time it
is deemed necessary by inspection.

CAUTION!
If large quantities of metal particles or other
deposits (caused, i.e. by partial seizure of the
crankshaft or connecting rod bearings) are
found in engine oil, thoroughly clean oil
passages and replace oil cooler to prevent
damage from re-occuring.
Do not overfill with oil past the MAX mark on
the oil dipstick. Damage to the Three Way
Catalytic Converter (TWC) could result.
Pa
ge 1 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-4


19 -
Engine oil temperature sensor -G8-
10 Nm (7 ft lb)For oil temperature gaugeWhiteIf seal is leaking, replace seal
20 -
Oil seal Replacing page 15
-14
21 -
Tensioner
Compress and secure before removing
page 13
-12

22 -
10 Nm
Use locking fluid D 000 600 A2 when
installing
23 -
Washer
24 -
Bearing bushing For tensioner lever
25 -
Washer
26 -
Bolt 25 Nm (18 ft lb)
27 -
Tensioning lever
28 -
Bearing bushing
Pa
ge 6 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-5


Oil pump, oil pan, oil filter, oil cooler,
removing and installing

1 -
Bolt for dipstick tube
25 Nm (18 ft lb)
2 -
Dipstick tube Replace O-ring
3 -
Oil pan (upper part) No gasket is installed between engine
block and oil pan (upper part) Only use silicon sealant D 454 300 A2
4 -
Bolt M820 Nm (15 ft lb)
5 -
Bolt M615 Nm (11 ft lb)
6 -
Bolt M820 Nm (15 ft lb)Bolt is next to coolant drain plug
Pa
ge 8 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

From pump to oil filter
17 -
Oil supply line From oil filter to engine oil circulation
Pa
ge 10 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-7


18 -
O-ring
Always replace
19 -
O-ring Always replace
20 -
Oil filter
21 -
Hex nut 30 Nm (22 ft lb)Threaded pipe for oil cooler and oil filter
installed in oil pan (upper part) and
tightened to 20 Nm (15 ft lb)
22 -
Oil cooler When installing, make sure O-ring is
seated correctly
23 -
Oil pump Disassembling and assembling Fig. 1Driven by chain from crankshaftTightening torque (chain sprocket to oil
pump): 25 Nm (18 ft lb) Tightening torque (oil pump to engine
block): 25 Nm (18 ft lb)
Pa
ge 11 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-11

Lock carrier in service position page 13
-1

- Open engine coolant expansion tank cap.

- Place VAG1306 drip tray beneath engine.

- Turn radiator drain plug counterclockwise (arrow). If needed, attach
tube to connection flange.

Collect engine oil in appropriate receptacle.
Vehicles with automatic transmission - Open coolant pump bearing housing drain plug as well (arrow).
- Drain engine coolant.
- Drain engine oil.
- Unbolt oil cooler line bracket from right-side of oil pan.
Pa
ge 15 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-12


- Set 10-222A engine support bridge together with 10-222A/3 engine
support adapter on fender mounting edges.
- Attach 2024A engine sling to mounting eyes at front and rear of engine.
- Using 10-222A engine support bridge spindle, lift up engine as far as
possible.

- Cut tie wraps (arrows), open bracket for starter wiring and remove
wiring.
- Remove torque support at front of engine.
- Unbolt coolant line at front of engine from oil pan.
- Disconnect harness connector from oil pressure switch on left-side of
oil pan.
- Disconnect coolant lines from oil cooler underneath oil filter.
Pa
ge 16 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1

17-13


- Remove left and right nuts from lower engine mount -1-.
- Mark installation positions for threaded assembly -1- and guide sleeves
-2- on left and right lower engine mounts.

Note:
Only loosen or lower subframe at front to avoid avoid changing wheel
alignment. - First remove front bolts -2- and -3- from left and right-sides of
subframe. Then remove bolts -1-.
- Swing stabilizer down.
- Remove starter.
Pa
ge 17 of 34 Lubrication s
ystem com
ponents, removin
g and installin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE03.17.1