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Part I: chain drive - engine codes BDE, BFH, BJS and BML - assembly overview — VW

Part I: chain drive - engine codes BDE, BFH, BJS and BML - assembly overview on VW: factory workshop procedure for engines AQP, AUE, BDE, BFH.

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

factory workshop text 6 engine codes

🔧 Engine codes this applies to

📋 Procedure

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

Part I: chain drive - engine codes BDE, BFH, BJS and BML - assembly overview
Valve timing housing
Lightly lubricate contact surfaces of oil seals before installing.
Removing and installing
Chapter
Dismantling and assembling
Fig.
.
Before installing valve timing housing, check strainer for soiling
Fig.
.
8 Nm
Renew.
Camshaft timing chain
Before removing, mark direction of rotation (installation position)
Fig.
.
Renew.
Chapter
.
Exhaust camshaft adjuster
Identification: 32A.
Rotate engine only with camshaft adjuster installed.
Removing and installing
Chapter
Intermediate shaft
Thrust washer
8 Nm
Apply locking fluid
“D 000 600 A2”
when installing
Tensioning plate
For camshaft timing chain
Item
Pivot pin, 18 Nm
Chain tensioner, 40 Nm
For camshaft timing chain
Item
Only rotate engine when chain tensioner is installed.
Seal
Renew if damaged or leaking.
Chain sprocket
For timing chain
Item
.
Removing and installing
Chapter
Chain sprocket
For camshaft timing chain
Item
Removing and installing
Chapter
60 Nm +
1
/
4
turn (90°) further
Renew.
To tighten and loosen, use
counter-hold tool
T10069
Chain tensioner with tensioning plate
For timing chain
Item
.
Before installing, release locking splines in chain tensioner using a small screwdriver and press tensioning plate against chain tensioner.
Only rotate engine when chain tensioner is installed.
Drive sprocket
Built into crankshaft.
Ground down tooth aligned with main bearing joint = TDC No. 1 cylinder
Timing chain
Before removing, mark direction of rotation (installation position)
Fig.
.
Renew.
Chapter
.
Guide rail
Removing and installing together with timing 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.
Removing and 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 with 32 mm open-end spanner on camshaft
Chapter
Guide rail
For camshaft timing chain
Item
Exhaust camshaft adjuster valve 1
N318
For exhaust camshaft.
Before removing, mark connector belonging to component.
Inlet camshaft adjuster valve 1
N205
For inlet camshaft.
Before removing, mark connector belonging to component.
Guide rail
For camshaft roller chain
Clipped into valve timing housing.
Marking timing chains
Mark timing 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.

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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.

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Workshop data on this page last updated 20 Sep 2026.