engine AUDI A4 1998 B5 / 1.G APB Engine Lubrication System Components Workshop Manual

17-1


Lubrication system
components, removing and
installing

Notes:

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 when
performing repairs, clean the oil passages
thoroughly and replace the oil cooler in order to
prevent further damage from occurring later.
Always replace O-rings, gaskets and oil seals
when performing repairs.
The oil level must not be above the max. mark -
otherwise this can cause damage to the
catalytic converter. Markings Page 17
-67

Viscosity grades and oil specifications
Repair Manual, Maintenance

Oil capacities
Repair Manual, Maintenance

Checking oil pressure Page 17
-65

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17-8


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

1 -
Bolt for dipstick guide tube
Tightening torque: 25 Nm
2 -
Dipstick guide tube Replace O-ring
3 -
Oil pan - upper section There is no gasket between engine block
and upper section of pan. Only use silicone
sealant D 454 300 A2.
4 -
Hex socket head bolt M8 Tightening torque: 20 Nm
5 -
Hex bolt M6 Tightening torque: 15 Nm
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17-10


12 -
Hex bolt M6
Tightening torque: 10 Nm
13 -
Oil pan - lower section
14 -
Hex bolt M6 Tightening torque: 10 Nm
15 -
Retainer for oil lines
16 -
Oil supply line From pump to oil filter
17 -
Oil supply line From oil filter to engine oil system
18 -
O-ring Always replace
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17-11


19 -
O-ring
Always replace
20 -
Oil filter
21 -
Hex nut Tightening torque: 30 NmThreaded line for oil cooler and oil filter is
screwed into upper section of pan with 20
Nm tightening torque.
22 -
Oil cooler Ensure O-ring is installed correctly when
installing
23 -
Oil pump Driven off crankshaft via chainTightening torque of chain sprocket to oil
pump: 25 Nm Tightening torque of oil pump to engine
block: 25 Nm
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17-12

Oil check valves, replacing


Note:
If irregular valve noise occurs repeatedly during
short journeys and disappears after extended
driving, the oil check valves must be replaced.

All cable ties which are released or cut open
when removing the engine must be replaced in
the same position when installing the engine.
Catch drained-off coolant in a clean container
for re-use or disposal.
Replace all gaskets and seals.

Removing

- Remove bolts -arrows- and remove engine cover panels -A...C-.
- Remove cover above air cleaner.
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17-21


Note:
Turn over the engine at the central bolt on the crankshaft. - Turn crankshaft to TDC by hand. Marks -A- and -B- must be aligned.
- Check position of camshafts: larger holes in securing plates on
camshaft sprockets must align opposite one another on inside. If this is
not the case, turn crankshaft one revolution further.
- Remove sealing plug from cylinder block, left.
The TDC drilling in the crankshaft must be visible (or able to be felt) in
line with the sealing plug hole.

- Screw clamping bolt 3242 for crankshaft into sealing plug hole and
tighten.
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17-27

WARNING!

Do not open air conditioner refrigerant
circuit.

Notes:
Note:
Use a separate container to collect the engine oil. - Detach air conditioner compressor -1...2-.
Watch position of guide bushes when installing.When installing, insert bolt -1- in the compressor first. To prevent damage to the condenser and refrigerant lines/hoses,
ensure that the lines and hoses are not stretched, kinked or bent.
- Drain engine oil.

- Remove lower section of oil pan.
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17-29

- Fill engine with oil.

Repair Manual, Maintenance


- Install lock carrier in normal position.

Repair Manual, Body Exterior, Repair Group
50


- Install bumper.

Repair Manual, Body Exterior, Repair Group
63

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17-31

Installing
Install in the opposite order to removing. When
installing, note the following points:

- Fill up engine oil.

Repair Manual, Maintenance


- Install lock carrier in normal position.

Repair Manual, Body Exterior, Repair Group
50


- Install bumper.

Repair Manual, Body Exterior, Repair Group
63

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17-32

Upper and lower sections of oil pan,
removing and installing


Special tools, testers and equipment
required

Engine support bracket 10-222A with adapter
10-222A/3
Drip tray VAG 1306
Electric drill with plastic brush attachment
Silicone sealant D 176 404 A2
Torque wrench 10 Nm/ 45 Nm

- Obtain radio theft code on vehicles with coded
radio.

- With ignition switched off, disconnect battery
Ground strap.

- Pull out dipstick.
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