Assembly overview - poly-V-belt drive for vehicles with air conditioning system — VW
Assembly overview - poly-V-belt drive for vehicles with air conditioning system on VW: factory workshop procedure for engines CAAA, CAAB, CAAC, CAAD.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 31 workshop diagrams for CAAA
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
Assembly overview - poly-V-belt drive for vehicles with air conditioning system
Poly V-belt
Mark direction of rotation before removing.
Check for wear.
Do not kink.
Removing and installing
Chapter
Bolt
10 Nm + 90°
Belt pulley and vibration damper
Installation position: hole in vibration damper must align over protrusion on crankshaft pulley.
Can be installed only in one position - bores are offset
Removing and installing
Chapter
Bolt
20 Nm
Idler pulley
For toothed belt
Dowel sleeve
Check for correct seating in ancillary bracket.
Inserted in hole for left (in direction of travel) bolt
11
on rear side of bracket.
Bracket for ancillaries
Observe prescribed torque and tightening sequence during installation
Fig.
High-pressure pump
Removing and installing
Chapter
Alternator
Removing and installing
Electrical system
Rep. gr.
27
Alternator; Removing and installing alternator
Bolt
The bolt can be reused. The torque setting must be adjusted to 20 Nm + 90°.
New bolt, 20 Nm + 180°
Centre hex stud
40 Nm + 90°
Bolt
40 Nm + 90°
Bolt
25 Nm
Sleeve
Before installing, drive back vane pump slightly
Bracket
Nut
25 Nm
Bolt
40 Nm +180°
Vane pump
Removing and installing
Rep. gr.
48
Hydraulic power steering; Removing and installing vane pump
Bolt
25 Nm
Belt pulley
Bolt
25 Nm
Bolt
23 Nm
Bolt
Renew after removing
20 Nm + 90°
Idler pulley
Remove and install using
wrench for door adjustment
3320
or
socket wrench XZN 10
T10154
and appropriate socket.
Air conditioner compressor
Removing and installing
Heating, air conditioning system
Rep. gr.
87
.
Bolt
Specified torque
Electrical system
Rep. gr.
27
Alternator; Removing and installing alternator
Poly V-belt tensioning element
Swing with ring spanner to slacken poly V-belt
Chapter
Removing and installing
Chapter
Bolt
20 Nm + 45°
Ancillary bracket - specified torques and tightening sequence
Insert bolts for ancillary bracket as follows:
Bolts
1
and
2
Bolts
3
and
4
Bolts
5
and
6
Tighten bolts for ancillary bracket in sequence
1 … 6
in 2 stages as follows:
Screw all bolts in to stop by hand.
Tighten all bolts to 40 Nm.
Turn bolts
1, 2, 5 and 6
90° further.
Turn bolts
3
and
4
180° further.
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.
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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.