Part I: assembly overview - toothed belt drive — VW
Part I: assembly overview - toothed belt drive on VW: factory workshop procedure for engines ALD, ANV, AUC, AUD. 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.
Part I: assembly overview - toothed belt drive
Note
Comply with the general notes on the crankshaft group
Chapter
.
Observe rules for cleanliness
Chapter
.
Toothed belt guard upper part
20 Nm +
1
/
4
turn (90°) further
Renew.
Use
camshaft lock
T10016
to loosen and tighten
Fig.
.
Camshaft pulley
Note position when installing toothed belt
Chapter
.
Coupling drive tensioning roller
Checking
Chapter
Tensioning toothed belts
Chapter
.
Coupling drive toothed belt
Mark direction of rotation before removing.
Check for wear.
Do not kink.
Toothed belt routing
Fig.
.
Removing, installing and tensioning
Chapter
.
20 Nm
10 Nm
Coolant pump
Check for ease of movement.
If damaged or leaking, renew complete.
Removing and installing
Chapter
Toothed belt guard - rear
50 Nm
Idler roller
For main drive toothed belt.
Main drive tensioning roller
Checking
Chapter
Tensioning toothed belts
Chapter
.
Crankshaft toothed belt pulley
Note position when installing toothed belt
Chapter
.
Main drive toothed belt
Mark direction of rotation before removing.
Check for wear.
Do not kink.
Toothed belt routing
Fig.
.
Removing, installing and tensioning
Chapter
.
12 Nm
Renew.
Pulley
Removing and installing
Chapter
Removing, installing and tensioning toothed belt.
When installing note fixing arrangement.
Removing and installing poly V-belt
Chapter
Securing bolt
Renew.
Contact surfaces of securing bolt and pulley must be free of oil and grease.
Oil threads before inserting.
Observe tightening procedure
Chapter
Secure pulley against turning with
counterhold
3415
and
pin
3415/1
.
Turning further can be done in several stages.
The turning further angle can be checked using a commercially available protractor, e.g. Hazet 6690.
Poly V-belt
Mark direction of rotation with chalk or felt pen before removing.
Check for wear.
Do not kink.
Removing and installing
Chapter
Poly V-belt routing with air conditioner compressor
Fig.
Toothed belt guard lower part
Engine support
50 Nm
Renew.
Toothed belt routing
A
Coupling drive toothed belt
B
Main drive toothed belt
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.
Ask about my car →Other VW procedures
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- Checking catalyst
- Checking lines to fuel tank and fuel cap
- Checking Lambda probe heating before catalyst
- Checking intake manifold pressure sender
- 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
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.