engine AUDI A4 1998 B5 / 1.G Suspension Power Steering Pump Testing Workshop Manual

48-38


Power steering pump, testing
delivery

Power steering pump (4-cyl. engine),
testing delivery


Special tools, test equipment and auxiliary
items

VAG1402
VAG1402/3 adaptor
3094 hose clamps

Testing delivery

- Pinch off suction and return lines using 3094
hose clamps.

- Disconnect pressure line from power steering
pump.

- Screw VAG1402/3 adapter into power steering
pump in place of banjo bolt.

- Close pressure guage shutoff valve (lever set to
left).
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- Start engine and top off fluid in reservoir (if
necessary).

- Measure pressure reading at idle speed:


Do not measure for longer than 10
seconds

Specified value: 110-120 bar (1595-1740
psi)
If specified value is not attained:

- Replace power steering pump page 48
-56
.

- Check hydraulic fluid level page 48
-22
.

- Check steering system for leaks page 48
-
25
.

- Bleed steering system page 48
-24
.
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Power steering pump (6-cyl. engine),
testing delivery


Special tools, test equipment and auxiliary
items

VAG1402
VAG1402/3 adaptor
3094 hose clamp

Models with 6-cylinder engine

- Unclip top engine cover and remove.

- Unbolt ribbed belt cover.
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- Pinch off suction hose using 3094 hose
clamp.

- Press spring clip and disconnect harness connector from fuel injector.
- Counter-hold at hex on flexible hose and remove supply line from
flexible hose (arrow).

- On vehicles with V6 2V engine: screw VAG1402/3 adapter into power
steering pump in place of flexible hose.
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- On vehicles with V6 5V engine: counter-hold at hex on flexible hose
and remove supply line from flexible hose (arrow).
- Screw VAG1402 pressure gauge hose to expansion hose.

- Screw VAG1402 pressure gauge hose to VAG1402/3 adapter.
- Close pressure gauge shut-off valve (lever positioned toward left).
- Reconnect fuel injector harness connector.
- Remove hose clamp from suction hose.
- Start engine and top off reservoir (if necessary).
- With engine idling, read power steering pump pressure on gauge.

Do not measure for longer than 10 seconds
Specified value: 110-120 bar (1595-1740 psi)
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