Removing and installing seat occupied sensor, front passenger side G128 — VW
Removing and installing seat occupied sensor, front passenger side G128 on VW: 26 steps. What to remove, in what order, and what to check after.
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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- If the seat occupied sensor, front passenger side G128 is renewed, the front seat cushion padding must also always be renewed! — Attach seat repair standVAS 6136 to engine and gearbox supportVAS 6095.
- In vehicles fitted with a through-loading aperture, it is sufficient to fold the backrest forwards. It is not necessary to remove the backrest.
📋 Procedure
- ⚠ If the seat occupied sensor, front passenger side G128 is renewed, the front seat cushion padding must also always be renewed! — Attach seat repair standVAS 6136 to engine and gearbox supportVAS 6095.
- Remove front seat .
- Fasten seat on seat repair standVAS 6136.
- Remove front belt buckle .
- Remove trim on tunnel side .
- Remove drawer mounting if there is one .
- Remove backrest adjuster wheel .
- Remove trim on sill side .
- Remove trim on sill side .
- Remove trim bracket on sill side .
- Remove backrest adjuster wheel .
- Remove trim on sill side .
- Remove trim bracket on sill side .
- Remove trim on sill side .
- Remove trim bracket on sill side .
- Disconnect the two backrest drive wiring harnesses from seat frame on lower side. Detach wiring harnesses from seat frame.
- Cut through cable ties of braided hose and pull wiring harness of side airbag through hose. [Note: In vehicles fitted with a through-loading aperture, it is sufficient to fold the backrest forwards. It is not necessary to remove the backrest.]
- Remove backrest .
- Remove front seat cushion cover and padding
- ⚠ Seat occupied sensor, front passenger side G128(1) is bonded firmly to the padding of the seat padding. Isolated removal and installation is not permissible; the sensor must always be renewed with the padding. — In the area of the positioning aids (1), push the wiring harness in the rear channel of the cushion.
- In the area of (arrows A and B), push the wiring harness into the cushion recess.
- Set the sensor (3) positioning aid to the positioning aid of the cushion (2).
- ⚠ You must ensure that the distance of the sensor to the positioning aids (2) remains constant (arrows). — Hold the aligned sensor (1) in position with your right hand, pull off adhesive strip (2) and stick the sensor onto the padding.
- Push the wiring harness, at the rear, into the cushion recess (arrow).
- Connect wiring harness to onboard power supply.
- After installation, carry out a function check with ignition switched on.
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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.