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Chain drive - Assembly overview — VW

Chain drive - Assembly overview on VW: factory workshop procedure for engines BLF. Full factory text, tools and checks.

Workshop procedure for VW — the factory write-up, straight from real workshop data.

factory workshop text 1 engine code

🔧 Engine codes this applies to

BLF

📐 33 workshop diagrams for BLF

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

Chain drive - Assembly overview — BLF · diagram 1
Chain drive - Assembly overview — BLF · diagram 2
Chain drive - Assembly overview — BLF · diagram 3
Chain drive - Assembly overview — BLF · diagram 4
Chain drive - Assembly overview — BLF · diagram 5
Chain drive - Assembly overview — BLF · diagram 6
Chain drive - Assembly overview — BLF · diagram 7
Chain drive - Assembly overview — BLF · diagram 8
+ 25 more diagrams

📋 Procedure

ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.

Chain drive - Assembly overview
Cylinder head with camshaft housing
Sealing surface must not be reworked
With integrated camshaft bearings
Remove sealant remnants
Apply
sealing compound
AMV 188 100 02
before fitting
When installing fit vertically from above with the dowel pins into the holes in the cylinder head
Removing and installing
Chapter
Cylinder block
Dismantling and assembling cylinder block
Chapter
Dismantling and assembling pistons and conrods
Chapter
Retainer
For tensioning element and air conditioner compressor
Sliding rail
For control chain
Chain sprocket
Note installation position: The journal must engage into the groove of the crankshaft!
For oil pump and control chain drive
Contact surfaces must be free of oil and grease
Drive chain
Mark D.O.R. before removing (installation position)
25 Nm
Chain tensioner with tensioning plate and tension spring
For oil pump drive
Tightening torque: 15 Nm
Is replaced complete only
Oil pan
Removing and installing
Chapter
Clean sealing surface before fitting.
Install with
silicone sealing compound
D 176 404 A2
13 Nm
15 Nm
Chain sprocket
Counterhold chain sprocket with
counter-hold
T10172
Cover
20 Nm + 90° (
1
/
4
turn) further
Piston
For chain tensioner drive chain
Compression spring
Chain tensioner
9 Nm
Valve gear casing
For a better guide purpose when installing, insert two M6x80 studs into the camshaft housing and the cylinder block
Removing and installing
Chapter
Bearing bush
Renew if scored
Observe tightening procedure
Chapter
Contact surfaces must be free of oil and grease
Poly V-belt sprocket
Observe tightening procedure
Chapter
Contact surfaces must be free of oil and grease
Secure poly V-belt sprocket with
counter-hold
3415
against turning
Removing and installing poly V-belt
Chapter
Bolt
Observe tightening procedure
Chapter
Renew
Contact surface of the securing bolt must be free of oil and grease
Insert oiled (thread)
Secure poly V-belt sprocket with
counter-hold
3415
against turning
The turning further angle can be measured with a commercially available angle measuring instrument e.g. Hazet 6690
O-ring
Renew
Bolt, 10 Nm
M6x45 mm
50 Nm
Bolt, 10 Nm
M6x22 mm
Insert with locking fluid
To intake manifold
10 Nm
Suction relief valve
10 Nm
Oil separator
Seal
Renew
40 Nm + 90° (
1
/
4
turn) further
Counterhold chain sprockets with
counter-hold
T10172
Bolt with left-hand thread
Renew
Tensioning plate
50 Nm + 90° (
1
/
4
turn) further
Camshaft adjuster
Must not be dismantled
Removing and installing
Chapter
Control chain
Mark D.O.R. before removing (installation position)
Chain sprocket
For exhaust camshaft
Lock chain sprockets with
counter-hold
T10172
Guide pins
Tightening torque: 20 Nm
Bearing bush

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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

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Workshop data on this page last updated 20 Sep 2026.