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| Disconnect the supply and return fuel lines with the -3094- hose clamp. |
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| Thread off pressure hose from the vane pump. |
| –
| Connect the adapter -V.A.G 1402/3- at the location of the banjo bolt on the vane pump. |
| –
| Connect the hose of the test device for the power steering -V.A.G 1402- to the adapter -V.A.G 1402/3- (Adapter varies depending on the pump version). |
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| Close cut-off valve on pressure gauge (lever pointing to the left). |
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| Remove the hose clamps -3094-. |
Note | t
| Observe the following in order to avoid damage to the pump: |
| t
| When executing the test, the cut-off valve of the manometer must not remain closed for longer than 10 seconds. |
| t
| Start the engine, do not race and keep in idling. |
| t
| Immediately after starting the engine, read off the pump pressure in idle (if necessary, the reading should be done by a second mechanic). |
| t
| As the pressure drops in the course of the test, the highest displayed pressure is taken into consideration. |
| –
| Start the engine and if necessary supplement the fluid level in the reservoir. |
| –
| Read off gauge pressure with engine running at idling speed (measurement must not take longer than 10 seconds). |
| Pump pressure specification |
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