Removing and installing entry and start authorisation control unit J518 — VW
Removing and installing entry and start authorisation control unit J518 on VW: 13 steps, 1 torque figure.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Sharan II / SEAT Alhambra (7N, 2010–)
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- In order to be able to pull the entry and start authorisation control unit J518 together with its holder off the pedal block, the steering column must be lowered.
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 2 Nm (1.5 lb-ft) | Tighten securing nuts of control unit |
ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.
📋 Procedure
- Switch off ignition and all electrical loads, and pull out ignition key.
- Remove driver side footwell vent Heating, ventilation, air conditioning system80Heating; Repairing heating; Passenger compartment; Removing vents.
- Remove trim in driver's footwell General body repairs, interior68Trim; Removing and installing left trim on driver side.
- Remove steering column trim General body repairs, interior68. [Note: In order to be able to pull the entry and start authorisation control unit J518 together with its holder off the pedal block, the steering column must be lowered.]
- ⚠ Observe the instructions regarding handling and transport of the steering column Running gear, axles, steering48Steering column and steering wheel; Handling and transport of steering column. — Remove both securing bolts (2).
- Unscrew bolt (1) and remove crash strut of clutch pedal (2).
- Unscrew bolt (3) and remove crash strut of brake pedal (4).
- Lower steering column only as far as necessary to allow removal of entry and start authorisation control unit J518 from pedal block.
- Release catch (arrow) and pull entry and start authorisation control unit J518(2) together with holder (3) backwards out of pedal bracket of brake pedal, taking lengths of connected wires into consideration.
- Release and detach connector (1) and then remove entry and start authorisation control unit J518(2) from holder (3).
- Insert entry and start authorisation control unit J518(2) into holder (3).
- Insert bracket together with control unit into guides on pedal bracket of brake pedal until it engages securely.
- Re-attach and secure connector (1).
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- Removing and installing glow plugs Q10/Q14 – VW 2.5 TDI
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.