Steering: Testing and Inspection

Special tools and equipment





^ 3094 Hose clamps
^ VAG 1402 Pressure gauge
^ VAG 1402/2 Adapter
^ VAG 1402/3 Adapter
^ VAG 1402/4 Adapter
^ VAG 1402/6 Hose from adapter set





^ VAS 5024 Assembly pliers





^ VA 1402/1 Adaptor

Vehicles with power steering pump in lower area





- Clamp return hose with hose clamp 3094.
- Remove noise insulation panel.





- Clamp suction hose with hose clamp 3094.
- Place oil pan under vehicle.
- Disconnect pump pressure line,
- Remove connector from pressure switch if necessary.





- Install adapter -1
Use seal.
-VAG 1402/1
-VAG 1402/6 Hose from adapter set





- Connect pressure gauge VAG 1402.
A-Pressure switch (n/a U.S.)
1-VAG 1402 Pressure gauge
2-VAG 1402/6 Hose from adapter set
3-Banjo bolt
4-Pressure hose banjo union
5-VAG 1402/2
6-VAG 1402 Hose from pressure gauge
- Remove hose clamp 3094 from suction and return hoses.
- Re-connect suction and return hoses.
- Start engine and if necessary add fluid to reservoir.
- Turn steering wheel approx. 10 times lock to lock.
- Check delivery pressure.

Requirements:
^ V-belt/V-belt tension OK.
^ System not leaking.
^ Hoses/lines are not kinked or restricted.
- With engine running at idle, close cut-off valve (not longer than 5 seconds) and read pressure.

Specifications
Gasoline engines: 85 ... 95 bar (1233 - 1378 psi)
Diesel engines: 96 ... 105 bar (1392 - 1523psi)

Note:
^ If reading is higher or lower than specified replace pump:
^ Power steering pump (with pump in lower area), removing and installing.
^ If reservoir fluid level is low check steering system for leaks.
^ For leaks at pinion check lines/line connections and if necessary tighten and wipe dry.
^ If pinion seal or rack seals in steering gear housing are leaking replace steering gear.
^ To check rack seals loosen hose clip on boot and push boot to one side.

Vehicles with power steering pump in upper area





- Remove engine cover.





- Clamp return hose with hose clamp 3094.





- Clamp suction hose with hose clamp 3094.
- Place oil pan under vehicle.
- Disconnect pump pressure line.