coolant AUDI A6 1998 C5 / 2.G AEB ATW Engines Lubrication System Components Workshop Manual

17-6


Part II

1 -
Oil filter bracket
2 -
Gasket Always replace
3 -
Oil retaining valve 8 Nm (71 in. lb)
4 -
Gasket Always replace
5 -
Coupling 30 Nm (22 ft lb)
6 -
Oil feed line 25 Nm (18 ft lb)To turbocharger
7 -
Bolt 20 Nm (15 ft lb)
8 -
Lower coolant pipe
9 -
Sealing washer If leaking, cut open and replace
10 -
Oil pressure switch -F1-, 1.4 bar (20.3 psi) 25 Nm (18 ft lb)
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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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17-14

- Using 10-222A engine support bridge spindle, lift
up engine as far as possible.

Note:
Lift engine only as far as possible without over-
stretching or damaging any pipes or coolant
hoses. Check for clearance of viscous fan; if
necessary remove.

- Release tension on ribbed belt Page 13
-
15
.

- Secure belt pulley for viscous fan using M5 x 60 mm bolt and unbolt
using 8mm hex socket wrench.
- Remove viscous fan and place forward in fan frame.

- Use VAG1202A engine hoist to support subframe.
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17-22

Oil pressure and oil pressure switch,
checking


Function of dynamic oil pressure warning
system

Warning lamp, checking
With engine switched off and ignition on (terminal
15 on), oil pressure warning lamp will be lit (not
for vehicles with Auto Check system).

Warning criteria

Engine switched off and oil pressure switch
closed.
Coolant temperature less than 60 C (140
F), engine speed higher than 300 RPM and
oil pressure switch open.

Coolant temperature greater than 60 C
(140 F).

At engine speeds greater than 5000 RPM,
an active oil warning won't be erased
independent of oil pressure switch setting.
A Diagnostic Trouble Code (DTC) is
recognized when oil pressure switch is open
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pair&id=AUDI.B5.GE02.17.1