Removing and installing voltage regulator C1 from 05.99 — VW
Removing and installing voltage regulator C1 from 05.99 on VW: 5 steps, 1 torque figure. What to remove, what to tighten and to how many Nm, what to check.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: platform codes 9C1, 1C1, 1Y7
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 15 Nm (11 lb-ft) | Tighten securing nut of B+ wire |
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
- ⚠ Before working on the electrical system, disconnect batteryA. — Remove nuts (arrows A) and bolt (arrow B) from protective cap.
- Remove protective cap.
- Remove bolts (arrows) from voltage regulator C1.
- Carefully remove voltage regulator C1 from alternatorC.
- Tighten securing nut of B+ wire to 15 Nm. — 15 Nm (11 lb-ft)
Other VW procedures
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.