Part I: assembly overview - chain drive — VW
Part I: assembly overview - chain drive on VW: factory workshop procedure for engines AGZ, AQN, AYT, BKL. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 26 workshop diagrams for AGZ
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.
Part I: assembly overview - chain drive
Valve timing housing
Lightly lubricate contact surfaces of oil seals before installing.
Removing and installing
Chapter
Removing and installing camshafts.
Dismantling and assembling
Fig.
.
Check strainer of control housing for contamination before installing
Fig.
8 Nm
Renew
Camshaft timing chain
Before removing, mark running direction (installation position)
Fig.
Installing
Chapter
.
Exhaust camshaft adjuster
Identification: 32A.
Rotate engine only with camshaft adjuster installed.
Installing
Chapter
.
Intermediate shaft
Thrust washer
Not installed on all engines.
8 Nm
Apply locking fluid
“D 000 600 A2”
when installing
Tensioning rail
For camshaft timing chain
Item
Pivot pin, 18 Nm
For tensioning rail
Item
Chain tensioner, 40 Nm
For camshaft timing chain
Item
Only rotate engine when chain tensioner is installed.
Seal
Renew if damaged or leaking
Sprocket
For timing chain
Item
.
Installing
Chapter
.
Sprocket
For camshaft timing chain
Item
Installing
Chapter
.
60 Nm +
1
/
4
turn (90°) further
Renew
Use
counterhold
T10069
to loosen and tighten.
Chain tensioner with tensioning rail
For timing chain
Item
.
Before installing, release locking splines in chain tensioner using a small screwdriver and press tensioning rail against chain tensioner.
Only rotate engine when chain tensioner is installed.
Drive sprocket
Built into crankshaft.
Ground down tooth to bearing joint = TDC No. 1 cyl.
Chapter
Timing chain
Before removing, mark running direction (installation position)
Fig.
Installing
Chapter
.
Guide rail
For timing chain
Item
.
Remove and install together with roller chain
Chapter
Locating pin without collar, 10 Nm
For guide rail
Item
.
18 Nm
23 Nm
Inlet camshaft adjuster
Identification: 24E
Rotate engine only with camshaft adjuster installed.
Installing
Chapter
.
60 Nm +
1
/
4
turn (90°) further
Renew
Contact surface of sender wheel must be dry around bolt head when assembled.
To remove and install, counterhold using 32 mm open-end spanner on camshaft
Chapter
Removing and installing camshafts.
Guide rail
For camshaft timing chain
Item
Exhaust camshaft control valve 1
N318
For exhaust camshaft.
Before removing, mark connector belonging to component.
Removing and installing
Chapter
Inlet camshaft control valve 1
N205
For inlet camshaft.
Before removing, mark connector belonging to component.
Removing and installing
Chapter
Guide rail
For camshaft timing chain
Item
Clipped into valve timing housing
Marking timing chains
Mark roller chains before removing (e.g. with paint, arrow pointing in direction of rotation).
Note
Do not mark chain by way of centre punch, notch or the like.
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
- Checking delivery rate
- Checking function and voltage supply – VW Polo 6R
- Removing and installing viscous fan bearing bush – VW 2.3 AGZ · 1 torque figures
- Checking throttle valve control part
- Removing and installing fuel gauge senderG – VW Polo 6C
- 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.