oil pressure AUDI A8 1999 D2 / 1.G AHA ATQ Engines Valve Gear Service Manual
Page 34 of 62
15-29
Compression, checking
Test conditions
Engine oil temperature at least 30 C
Battery fully charged
- Disconnect harness connectors from all 6 fuel
injectors.
- Disconnect 5-pin harness connector from power
output stage of ignition coils.
- Open throttle fully.
- Use VAG1381 or VAG1763 compression tester
to check compression.
- Operate starter until no further pressure
increases are indicated by VAG1381 or
VAG1763 compression tester.
Compression pressure
New
Wear
limit Max. permissable
difference between
cylinders
Pa
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