Removing and installing voltage regulator, manufacturer: Bosch — VW
Removing and installing voltage regulator, manufacturer: Bosch on VW: 6 steps, 7 torque figures. What to remove, what to tighten and to how many Nm, what.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Passat B7 saloon (362, 2010–2014), VW Passat B7 Variant (365, 2010–2014)
🔩 Torque settings
Values can differ between engine variants — check the code stamped on your block.
| Torque | Fastener / step |
|---|---|
| 2 Nm (1.5 lb-ft) | Remove securing bolts for voltage regulator (arrows |
| 2 Nm (1.5 lb-ft) | Tighten bolted connections of voltage controller at alternator |
| 2 Nm (1.5 lb-ft) | Tighten voltage regulator M4 securing bolts on alternator |
| 2 Nm (1.5 lb-ft) | Unscrew securing bolts of voltage regulator (arrows |
| 4.5 Nm (3.3 lb-ft) | Remove securing bolt and nuts (arrows |
| 4.5 Nm (3.3 lb-ft) | Tighten bolted connections of protective cap at alternator |
| 4.5 Nm (3.3 lb-ft) | Unscrew securing bolt and nuts (arrows |
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
- Remove alternator .
- Remove securing bolt and nuts (arrows) and remove protective cap from alternator.
- Unscrew securing bolts of voltage regulator (arrows).
- Carefully remove voltage regulator from alternator.
- Tighten bolted connections of voltage controller at alternator to 2 Nm. — 2 Nm (1.5 lb-ft)
- Tighten bolted connections of protective cap at alternator to 4.5 Nm. — 4.5 Nm (3.3 lb-ft)
Other VW procedures
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
- Installing mechatronics – VW Golf IV / Bora · 2 torque figures
- Technical data, gearbox
- Assembling bevel box – VW Golf IV / Bora
- Installing wiper motor in wiper frame – VW · 1 torque figures
- Front axle speed sensor - remove and install · 2 torque figures
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.