warning AUDI A6 1997 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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- Remove engine covers.

- Set 10-222A engine support bridge on fender mounting edges.

WARNING!
Mounting hooks and pins on the engine sling must be secured with
the positioning lock (arrows). - Remove mounting eye from 2024A engine sling.
- Insert bolt -1- in center bore of 2024A engine sling and secure using
cotter pin.
- Attach 2024A engine sling bolt to 10-222A engine support bridge
spindle.
- Attach 2024A engine sling to mounting eyes at front and rear of engine.
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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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for more than 0.5 seconds at engine speeds
greater than 1500 RPM. If condition occurs
more than three times during a drive,
warning will remain active even at engine
speeds less than 1300 RPM.
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Special tools and equipment

VAG1342 oil pressure tester
VAG1527B voltage tester
VAG1594A measuring appliance adapter

Test conditions
Oil level OK
Oil pressure warning light -K3- must light up
when ignition is switched on.
For vehicles with Auto Check system, "i.O"
indicator must be lit (call up symbol)
Engine oil temperature approximately 80 C
(176 F)
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