Leak-proofness of the steering system - check — VW

🧭 Before you start

• Renewed: seal or tube/hose, engine/pump assembly, steering box

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• If the hydraulic oil level drops even if tubes/hoses and/or connections are not leaking, the problem is in the steering box and has to be removed and checked.

📋 Procedure

1. Remove the front left wheel (in case it has not been removed).
2. Remove the lower engine compartment noise insulation General body repairs, exterior50Noise insulation - remove and install.
3. Remove the left front wheelhouse protection (in case it has not been removed) General body repairs, exterior66Front wheelhouse protection - remove and install
4. Run the engine at idle speed.
5. Turn the steering wheel from stopper to stopper and hold at each position from 5 to 10 seconds in order to produce maximum pressure at the system.

6. Check the hoses and return hoses for leak proofness.
7. Check all tubes and hose connections for correct seating and leak proofness. When tubes and hoses are leaking, tighten the connections with the recommend torque or replace the seal or tube/hose.
8. Check the engine/pump assembly for leak proofness. In case of leakages, replace the engine/pump assembly.
9. Check the hydraulic oil reservoir for leakages. On vehicles with Koyo engine/pump assembly, replace the engine/pump assembly if the reservoir leaks.
10. Check the hydraulic oil level and fill it up if necessary . [Note: If the hydraulic oil level drops even if tubes/hoses and/or connections are not leaking, the problem is in the steering box and has to be removed and checked.]
11. Remove the electromechanical steering box .
12. Open the protection gaiter clamps.
13. Remove the protection gaiter. Replace the steering box if hydraulic oil is visible on steering box housing and/or on the protection gaiters.
14. Install the electromechanical steering box
15. Install the left front wheelhouse protection (in case it has not been removed) General body repairs, exterior66Front wheelhouse protection - remove and install.
16. Install the lower engine compartment noise insulation (in case it has not been removed) General body repairs, exterior50Noise insulation - remove and install.
17. Install the front left wheel (in case it has not been removed).
18. Install the front left wheel.

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