1999 AUDI A4 engine

17-44

- Clean both sealing surfaces for lower section of
oil pan; ensure that they are free of oil and
grease.

Note:
Do not use any adhesive or sealant.

- Install new gasket on lower section of oil pan
and install on upper section of oil pan with two
diagonally opposite bolts.

- Tighten all securing bolts hand-tight.

- Tighten bolts to 10 Nm with torque wrench,
working from center outward.

- Install new seal on oil drain plug and tighten to
30 Nm.

Notes:

When installing the upper section of the oil pan
with the engine removed from the vehicle,
ensure that the oil pan is positioned flush with
the cylinder block at the flywheel end.
The sealant must be left to dry for about 30
minutes after installing the oil pan before engine
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17-45

- Fill with coolant Page 19
-19
.

- Fill engine with oil.

Repair Manual, Maintenance


- Install subframe.

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


- 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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17-46

Tightening torques

Component

Nm
Upper section of oil pan to cylinder
block M6 10
M8 20
Lower section of oil pan to upper
section of oil pan 10
oil pan to transmission M8 25
M10 45
Coolant line to oil pan 10
Oil drain plug in lower section of oil
pan 30
Dipstick guide tube to cylinder head 25
Oil pump to cylinder block 25
Oil pump supply lines to upper
section of oil pan 10
Front sealing flange M6 10
Collar bolt M8 30
Bracket for coolant lines to oil pan 10
Coolant drain screw on engine 20
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17-47

Component

Nm
Stop for torque reaction support to
bracket on engine
25
Engine mounting to subframe 25
Torque reaction support to front of oil pan 25
Engine mounting to engine support 25
Chain sprocket to oil pump 25

Other tightening torques
** Combi bolt -4- must be replaced after removing. Nut for engine mounting -1- 25
Bolts -2- and -3- 60
Combi bolt -4- **
110 + 90
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17-49

WARNING!

Do not open air conditioner refrigerant
circuit.

Notes:
Note:
Use a separate container to collect the engine oil. - Detach air conditioner compressor -1...3-.
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.
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17-53

- Clean both sealing surfaces for lower section of
oil pan; ensure that they are free of oil and
grease.

Note:
Do not use any adhesive or sealant.

- Install new gasket on lower section of oil pan
and install on upper section of oil pan with two
diagonally opposite bolts.

- Tighten all securing bolts hand-tight.

- Tighten bolts to 10 Nm with torque wrench,
working from the center outwards.

- Install new seal on oil drain plug and tighten to
30 Nm.

- Fill up engine oil.

Repair Manual, Maintenance


- Install subframe.

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17-55

Front sealing flange and oil pump drive
chain, removing and installing


Removing

- Remove ribbed belt Page 13
-1 .

- Remove toothed belt Page 13
-4 .

- Drain engine oil.

Use a separate container to collect the engine
oil.
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17-59


Removing and installing chain sprocket on crankshaft Page 17
-62
.
Installing
Install in the opposite order to removing. When installing, note the
following points:
Note:
The front sealing flange must be installed within 5 minutes of applying
silicone sealant D 454 300 A2. - Remove oil pump together with shorter oil supply line.
- Take out oil pump sprocket and remove drive chain from crankshaft.
- Remove any residues of sealant on front of oil pan or engine block, if
necessary.
- Clean sealing surfaces; ensure that they are free of oil and grease.
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