Vehicles with chain driven oil pump — VW
Vehicles with chain driven oil pump on VW: factory workshop procedure for engines ADX, AEA, AEE, AER. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 9 workshop diagrams for ADX
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.
Vehicles with chain driven oil pump
Vehicles with Duocentric oil pump
Chapter
Sealing cap
Renew seal if damaged
Oil pressure switch
F22
0.25 bar, 25 Nm
Identification: blue
Wire: blue/black
Checking
Chapter
If sealing ring is leaking, nip open and renew
10 Nm
Guide tube
Dipstick guide
Pull out to extract oil.
Oil dipstick
The oil level must not be above the max. mark!
Markings
Chapter
Camshaft pulley
Note position when installing toothed belt
Chapter
.
Oil filters
Loosen with strap wrench
Tighten by hand.
Observe installation instructions on oil filter.
Sprocket
Tensioning roller
Removing, installing and tensioning
Chapter
20 Nm
Toothed belt
Mark direction of rotation before removing.
Check for wear
Do not kink
Removing, installing and tensioning
Chapter
Toothed belt guard upper part
Toothed belt guard lower part
Hexagon bolt: 90 Nm + 120° (
1
/
3
turn) further; 12 point head bolt = 90 Nm + 90° (
1
/
4
turn) further
Renew
Oil before installing.
Turning further can be done in several stages.
The extra turn angle can be checked using a commercial protractor e.g. Hazet 6690.
Belt pulley
When installing note fixing arrangement
Crankshaft toothed belt pulley
Note position when installing toothed belt
Chapter
.
10 Nm
For aluminium block: Renew bolts (coated with a sealant)
Seal
Renewing
Chapter
Sealing flange
Seal
Renew
Sealing bush
Renew if damaged
First insert in sealing flange
Oil when installing
Chain
Tensioning
Chapter
20 Nm
Oil pump
Checking backlash
Chapter
.
Checking axial clearance
Chapter
.
Oil pump cover with pressure relief valve
Opening pressure: 4.0…5.0 bar
Clean strainer if soiled.
Seal
Renew
Oil drain plug, 30 Nm
Sump
Clean sealing surface before fitting.
Remove and install on engines with liquid gasket
Chapter
.
15 Nm
Loosen and tighten flywheel end bolts only with
long-reach Allen key
T10058
.
Seal
Not on engines with liquid gasket
Renew
Before fitting coat transition points sealing flange/cylinder block with
sealant
D 002 989 A2
.
10 Nm
Bracket
O-ring
Renew
10 Nm
Oil separator
To air filter.
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.