engine oil AUDI A6 1999 C5 / 2.G AEB ATW 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
a second time. 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, for example, by partial
seizure of the crankshaft or connecting rod
bearings) are found in the engine oil, the oil
passages must be cleaned thoroughly and
the oil cooler replaced in order to prevent
further damage from re-occurring.
Do not overfill with oil past the MAX mark on
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17-4


19 -
Bolt
45 Nm (33 ft lb)
20 -
Oil drain plug 50 Nm (37 ft lb)
21 -
Sealing washer Always replace
22 -
Oil pan Removing and installing Page 17
-9
Clean contact surface before installingWhen installing oil pan on removed engine,
note that oil pan is aligned with metal plate
on flywheel side (i.e. oil pan projects out
over engine block 0.8 mm 0.031 in.) Before installing oil pan, spread thin coat of
sealant AMV 174 004 01 on sealing
surface between oil seal carrier and engine
block
23 -
Bolt 10 Nm (7 ft lb)Use 3249 hex ball socket to remove and
install two rear bolts on transmission Tighten diagonally in sequence
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17-5


CAUTION!
Part numbers are listed here for reference only.
Always check with your Parts department for
the latest information. 24 -
Gasket
Always replace
25 -
Bolt 10 Nm (7 ft lb)
26 -
Oil return line From turbocharger
27 -
Gasket Always replaceInstall dryOnly spread thin coat of sealant AMV 174
004 01 on front and rear sealing surfaces
between oil seal carrier and engine block
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17-7


11 -
Engine oil temperature sensor -G8-
10 Nm (7 ft lb)
12 -
Sealing washer If leaking, cut open and replace
13 -
O-ring Always replaceSnap into grooves on oil cooler
14 -
Oil cooler Refer to "CAUTION!" Page 17
-1
Coolant hose connection diagram Page 19
-2
15 -
Oil filter
Follow filter change intervalsUse 3417 oil filter wrench to removeFollow installation notes found on oil filterTightening torque: 20 Nm (15 ft lb)
16 -
Nut 25 Nm (18 ft lb)
17 -
Hex socket bolt 25 Nm (18 ft lb)
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17-9

Oil pan, removing and installing


Special tools and equipment

10-222A engine support bridge with 10-222A/1
bracket for engine
2024A engine sling
3249 puller
VAG1202A engine hoist
AMV 174 004 01 sealant

Note:
Always replace gaskets.

Removing

- Remove noise insulation panel (arrows).
- Drain engine oil.
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17-18

Installing
Installation is the reverse of removal, noting the
following:

Note:

Replace gaskets and O-rings.
When installing oil pan on removed engine,
note that oil pan is aligned with metal plate on
flywheel side (i.e. oil pan projects out over
engine block 0.8 mm, or 0.0315 in.).

- Clean sealing surfaces before installing oil
pan.

- Lightly spread AMV 174 004 01 sealant on front
and rear contact surfaces of oil seal carrier.

- Tighten bolts between oil pan and engine block
in 2 stages and diagonal sequence.

- Install oil pan and tighten all bolts between oil
pan and engine block to 5 Nm (44 in. lb) (stage
1).

- Tighten bolts between oil pan and
transmission.
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Tightening torque: 45 Nm (33 ft lb)

- Tighten M10 bolts between oil pan and engine
block.

Tightening torque: 45 Nm (33 ft lb)

- Tighten all M6 bolts between oil pan and engine
block to 10 Nm (7 ft lb) (stage 2).
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17-19

- Install subframe Repair Manual, Suspension,
Wheels, Steering,Repair Group 40.
- Place torque support on rubber buffer for torque
support and tighten bolts to 25 Nm (18 ft lb).

- Install ribbed belt Page 13
-15
.

Note:
When installing ribbed belt, check for correct
seating on belt pulley.

- Add engine oil and check oil level.

CAUTION!

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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17-20

Tightening torques

Component

Tightening
torques
Oil pan to engine block M6 10 Nm (7 ft lb)
M10 45 Nm (33 ft lb)
Oil pan to transmission 45 Nm (33 ft lb)
Engine mount to subframe 25 Nm (18 ft lb)
Torque support to bracket on
engine 25 Nm (18 ft lb)
Torque support bracket to
engine
25 Nm (18 ft lb)
Side brace to bracket for
torque support 25 Nm (18 ft lb)
Side brace to engine support 20 Nm (15 ft lb)
Oil drain plug 50 Nm (37 ft lb)
Oil return line to oil pan 10 Nm (7 ft lb)
Transmission mount to
subframe 23 Nm (17 ft lb)
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17-21

Oil pump, removing and installing


Removing

- Remove oil pan Page 17
-9 .

- Unhinge baffle plate and remove.

Installing
Installation is the reverse of removal, noting the following:
Installing oil pan Page 17
-18
.
Tightening torque - Remove bolts (arrows).
- Press down on subframe and remove oil pump.
Component
Tightening torques
Oil pump to engine block 25 Nm (18 ft lb)
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