Assembly overview - oil pump, sump — VW
Assembly overview - oil pump, sump on VW: factory workshop procedure for engines AFN, AHH, AHU, ANU. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
🔧 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.
Assembly overview - oil pump, sump
Note
Metal shavings or a large quantity of small metal particles found during engine repair could indicate that the crankshaft bearings or conrod bearings are damaged. To avoid any subsequent damage, the following work must be carried out following the repair: Carefully clean oil channels and renew oil spray jets, engine oil cooler and oil filter.
Oil capacities, oil specifications, viscosity grades
Maintenance tables
.
Oil spray jet and pressure relief valve
Fig.
15 Nm
Sealing flange
With seal.
Must seat on dowel sleeves.
Removing and installing
Chapter
Install with
silicone sealant
D 176 404 A2
.
Do not additionally oil or grease the oil seal sealing lip.
Before installing, remove oil residue from crankshaft journal using a clean cloth.
Renewing crankshaft oil seal, belt pulley end
Chapter
.
Toothed belt for oil pump
Check for damage and wear.
Renew if necessary.
Note
Belts which have been in use longer can sag.
This is not a fault and does not necessarily mean belt needs replacing.
10 Nm
Oil dipstick
The oil level must not be above the max. mark!
Markings
Chapter
.
Guide tube
Clip
Dowel sleeves
Renew.
O-ring
Renew.
10 Nm
Oil pump with pressed-on toothed belt pulley
With 12 bar pressure relief valve.
Before installing, check that both dowel sleeves for centring oil pump on cylinder block are fitted.
If toothed belt or oil pump have to be removed:
Check oil pump for free movement.
It should be possible to turn belt pulley easily with 1 finger.
Renew if tight/sticking.
Suction line
Clean strainer if soiled.
Baffle plate
15 Nm
Bolt
Specified torques and installation sequence
Fig.
.
Oil sump
Clean sealing surface before fitting.
Install with
silicone sealant
D176404A2
.
Removing and installing
Chapter
15 Nm
Seal
Renew.
Oil drain plug, 30 Nm
Renew.
10 Nm
Oil level and oil temperature sender
G266
Black 3-pin connector
Removing and installing
Chapter
Seal
Renew.
Oil level/oil temperature sender wiring harness
27 Nm
Insert without sealant.
Oil spray jet
Oil spray jet and pressure relief valve
Bolt with pressure relief valve, 27 Nm
Oil spray jet (for cooling of pistons)
Note
When renewing the oil spray jet, ensure correct allocation to piston
electronic parts catalogue
.
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
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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.