1999 AUDI A4 engine oil

17-1


Lubrication system
components, removing and
installing

Note:

If large quantities of metal shavings or particles
are found in the engine oil when repairing the
engine, all oil passages must be cleaned
carefully, and the oil cooler replaced in order to
prevent further damage occurring later.
The oil level must not be above max. mark on
dipstick - danger of damage to catalytic
converter!
Oil spray jet and pressure relief valve Fig.
1 , Page 17
-6
Viscosity grades and oil specifications:

Repair Manual, Maintenance

Oil system capacity:

Repair Manual, Maintenance

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17-15


CAUTION!
The hooks and locating pins of the lifting tackle must be secured
with locking pins -arrows in illustration-. - Engage lifting tackle 2024 A in front and rear lifting eyes on engine.
- Pretension engine with spindle of support bar, do not lift.
- Drain engine oil.
- Remove oil return line of exhaust turbocharger from oil pan.

- Disconnect electrical connector -arrow- from oil level sender.
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17-25

- Immediately attach oil pan and tighten bolts in
described sequence:

Note: - Tighten bolts -1 to 18- diagonally to 5 Nm.
- Tighten bolts securing oil pan to transmission to 45 Nm.
- Tighten bolts M10 -arrows- to 40 Nm.
- Tighten bolts -1 to 18- tighten diagonally to 15 Nm.
Replace seals and gaskets.

When installing the oil pan with the engine removed from the vehicle,
ensure that the oil pan -3- is positioned flush with the intermediate
plate -1- at the flywheel end (i.e. oil pan should protrude dimension "a"
= 0.8 mm from cylinder block with respect to the cylinder block -2-). After installing oil pan assembly, the sealant must dry for approx. 30
minutes. Only then may the engine be filled with oil.
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17-26


Repair Manual, Suspension, Wheels, Steering, Repair Group 40

Vehicles with automatic transmission:
Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 37

All models:
Vehicles with automatic transmission:
Repair Manual, 5 Spd. Automatic Transmission 01V, Repair Group 37 - Support subframe with workshop crane VAG 1202 A.
- Installing subframe:
- Secure ATF lines.- Install lock carrier Page 13
-1 .
- Fill engine with oil and check oil level.
- Check ATF level:
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17-27

Tightening torques

Component

Nm
Oil pan to cylinder block M7 15

M10 40
Oil pan to transmission 45
Limit stop for torque reaction support on oil
pan
28
Engine mounting to subframe 25
Engine mounting to engine support 25
Transmission support to transmission
support M10 40
Transmission mounting to subframe
M8
25
Oil return pipe to oil pan 10
Oil drain plug 30
Hose clamps for air duct hoses
3.5
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17-31

Test requirements:

Oil level OK.
Engine oil temperature approx. 80 C.

Oil pressure warning lamp -K3- must come
on when ignition is switched on.
In vehicles with auto check system the "OK"
display must appear (call up symbol).

Testing oil pressure switch

- Disconnect wire from oil pressure switch.

- Remove oil pressure switch and screw in oil pressure tester VAG 1342.
- Thread oil pressure switch -2- intoVAG 1342.
- Connect brown wire -1- of tester to Ground (-).
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17-32

- Connect voltage tester VAG 1527 B to oil
pressure switch and positive side of battery (+)
using test leads from VAG 1594 A.

Test lamp should not light up.

- If test lamp lights up, install new oil pressure
switch.

- Start engine.

Note:
The switching point of the oil pressure switch can
be reached when the engine is cranked on the
starter motor, so watch the tester and the test
lamp while starting the engine.

Black oil pressure switch:
LED must light up at 1.2 to 1.6 bar.

- If test lamp does not light up, install new oil
pressure switch.
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17-33

Check oil pressure

- Disconnect wire from oil pressure switch.

If specified values are not attained: - Remove oil pressure switch and screw in oil pressure tester VAG 1342.
- Thread oil pressure switch -2- intoVAG 1342.
-
Start engine (engine oil temperature approx. 80 C).
Oil pressure at idling speed: at least 1.3 bar Oil pressure at 2000 rpm: 3.5 to 4.5 bar
- Pressure relief valve or oil pump faulty, replace oil pump Page 17
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28
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