| –
| Connect power steering tester -V.A.G 1402- |
| –
| Attach tester to front suspension. Hoses must not be under tension. |
| 1 - | Power steering tester -V.A.G 1402- |
| 2 - | Adapter -V.A.G 1402/3- |
| 3 - | Hose from adapter set -V.A.G 1402/6- |
| 4 - | Adapter -V.A.G 1402/2- |
| 5 - | Adapter -V.A.G 1402/1A- |
| –
| Open cut-off valve at pressure gauge of tester. Lever must point vertically downwards. |
| –
| Fill up with hydraulic fluid and bleed steering system → Chapter. |
Note! | t
| A second mechanic is required for testing the delivery pressure/system pressure of the motor/pump unit. |
| t
| To prevent damage to the motor/pump unit and the power steering system, testing of the delivery pressure/system pressure must not be continued for longer than approx. 5 seconds. |
| t
| The cut-off valve on the pressure gauge of the tester must not be closed during the test. If the cut-off valve is closed, the displayed pressure will drop to 0 bar when the pressure valve in the motor/pump unit responds. |
| –
| Now check delivery pressure. |
| –
| Read off pressure with engine idling and steering at full lock (left and right). |
| –
| Compare measured value with specification. Specification: 96…104 bar. |
Note! | t
| Always check steering system for leaks if fluid level is low in reservoir. |
| t
| If leakage is visible at steering pinion, first check pipes and pipe connections for leaks. Tighten and wipe dry if necessary. |
| t
| Renew steering gear if leakage is found at steering pinion seal or at steering rack seals in steering gear housing. |
| t
| To check steering rack seals, loosen hose clip on boot and push back boot. |
| –
| Draw off hydraulic fluid with extractor bottle. |
| –
| Remove power steering tester. |
| –
| Connect expansion hose to motor/pump unit. |
| –
| Bolt motor/pump unit with bracket or adapter to body. |
| –
| Install expansion hose, return line and wiring in spacer bracket. |
| –
| Fill up with hydraulic fluid and bleed steering system → Chapter. |
|
|
|
