Checking steering system for leaks: Audi A2

🧭 Before you start

Fits: Audi A2 (8Z)

• Renewed: affected hose or pipe, pipe, motor/pump unit

📋 Procedure

1. Remove front left wheel.
2. Remove noise insulation General body repairs, exterior50Body - front; Noise insulation - exploded view.
3. Remove front left wheel housing liner General body repairs, exterior66Removing and installing wheel housing liner; Front wheel housing liner.
4. Start engine; run at idling speed.
5. Turn steering wheel to full lock in both directions and hold for a maximum of 5 ... 10 seconds. This builds up the maximum possible pressure.

6. Check expansion hose and return line for leaks. If leaks are found, renew the affected hose or pipe.
7. Check all pipe and hose connections for firm seating and for leaks. If leaks are found, re-tighten pipe or hose connection to the permissible tightening torque or renew pipe, hose or seal.
8. Check motor/pump unit for leaks. Renew motor/pump unit if leaks are found.
9. Check hydraulic fluid reservoir for leaks. Renew motor/pump unit if leaks are found.
10. Check hydraulic fluid level and top up if necessary . [Note: If repeated loss of hydraulic fluid in the motor/pump unit reservoir occurs and extensive tests have been performed several times on the pipes and hoses and their connections and on the motor/pump unit including reservoir, it will then be necessary to remove and check the power steering box.]
11. Remove power steering box .
12. Check seal for input shaft on valve housing of power steering box (arrow A) for leaks.
13. Open hose clip for boot and push back boot.
14. Check steering rack seals (arrows B) for leaks.
15. Install power steering box .
16. Install front left wheel housing liner General body repairs, exterior66Removing and installing wheel housing liner; Front wheel housing liner.
17. Install noise insulation General body repairs, exterior50Body - front; Noise insulation - exploded view.
18. Fit and secure wheel .

Other AUDI procedures

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• Removing engine – Audi A8 D3 · 41 torque figures
• Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
• Installing engine – Audi A8 D4 · 36 torque figures
• Removing and installing camshaft timing chain · 29 torque figures
• Removing and installing clutch valve for all-wheel drive N445 or clutch valve 2 for all-wheel drive N446, 0BE, 0BF
• Removing and installing digital TV tuner, from model year 2012 onwards
• Removing and installing retainer for electrical connector
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• Removing and installing trim for Easy Entry system (with electric adjustment)