AUDI A4 1998 B5 / 1.G AHA ATQ Engines Lubrication System Components Workshop Manual

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.
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Checking oil level page 17
-32
.

Notes:

Always replace seals and gaskets.
Viscosity classes and oil specifications page 17
-31
.

Checking oil pressure page 17
-30
.
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17-2


Oil pump, cylinder block breather and oil
spray jets, removing and installing

Oil pan (upper part) and oil pan (lower part),
removing and installing page 17
-10
.
1 -
Bolt
20 Nm (15 ft lb)
2 -
Washer
3 -
Tensioner roller For toothed belt
4 -
Bolt 45 Nm (33 ft lb)
5 -
Bolt 10 Nm (7 ft lb)For toothed belt
6 -
Bolt 10 Nm (7 ft lb)
7 -
Bolt 10 Nm (7 ft lb)
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17-3


8 -
Breather housing
9 -
Gasket/breather plate
Always replace
10 -
Oil check valve 25 Nm (18 ft lb)
11 -
Oil seal
12 -
Connector
13 -
Bolt 15 Nm (11 ft lb)
14 -
15 Nm For oil spray jets for piston cooling
15 -
Cylinder block
16 -
Bolt 10 Nm (7 ft lb)Use locking fluid D 000 600 A2 when
installing
17 -
Oil spray jet For piston cooling
18 -
Gasket Metal gasket
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Always replace
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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
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For tensioner roller
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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
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17-6


7 -
Bolt
M610 Nm (7 ft lb)
8 -
O-ring Always replace
9 -
Gasket for oil pan (lower part) Sealing surfaces clean and dry
10 -
Oil drain plug 30 Nm (22 ft lb)
11 -
Gasket for oil drain plug Always replace
12 -
Bolt M610 Nm (7 ft lb)
13 -
Oil pan (lower part)
14 -
Bolt M610 Nm (7 ft lb)
15 -
Bracket for oil lines
16 -
Oil supply line
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From pump to oil filter
17 -
Oil supply line From oil filter to engine oil circulation
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