Repairing TRW power-assisted steering — VW
Repairing TRW power-assisted steering on VW: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
Repairing TRW power-assisted steering
This repair is restricted to renewing the seals and if necessary the steering rack. Steering boxes which have been damaged in an accident must always be renewed!
For problem-free and successful repairs the greatest possible care, cleanliness, expertise and the correct tools in good condition are necessary.
Note
Thoroughly clean hose connections and their immediate vicinity before loosening.
Thoroughly clean work place (bench, vice) before commencing work and if necessary cover work surface e.g. with paper towels.
Place parts which have been removed on a clean surface. If the repair is not carried out immediately, cover parts.
Only use lint-free cloths.
Only unpack replacement parts immediately prior to fitting.
Only use genuine packed parts.
Corroded steering racks must not be reused.
Track rod
Boot
Hose clamp
Renew.
Retaining ring
Renew.
Retaining clip
Steering rack guide
Renew.
O-ring
Is fitted to the steering rack guide (
Item
) in repair kit.
Pressure balancing pipe
Check for damage (dents, kinks).
Steering rack
Plug
Is only required if the steering rack has been renewed.
To fit drill hose in the adjusting screw
Anchor
.
Is supplied in repair kit.
Adjusting screw with lock nut, 60 Nm
Spring
Thrust piece
Housing
Check cylinder contact surface for scoring, if necessary renew steering box complete.
Union nut, 30 Nm
O-ring
Renew.
Not contained in repair kit
Electronic parts catalogue
.
Oil seal
Renew.
Valve body
Cannot be repaired.
Is not available as spare part, if damaged renew steering box.
Support ring
Omitted as of 04.92.
If fitted must be refitted.
Adhesive foil
Renew.
Roller bearing
Oil seal
Renew.
Retaining ring
Ball bearing
Self-locking hexagon nut, 30 Nm
Renew.
Screw plug, 40 Nm
Renew.
Pipe
Must not be detached
Not available as spare part.
Seal cannot be renewed.
O-ring
Is already fitted to new steering racks supplied as spare parts.
Oil seal
Is already fitted to new steering racks supplied as spare parts.
Oil seal
Not available as spare part.
Oil seal
Renew.
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.