Removing and installing Duo-centric oil pump — VW
Removing and installing Duo-centric oil pump on VW: factory workshop procedure for engines ABD, ABU, AEA, AEE. Full factory text, tools and checks.
Workshop procedure for VW — the factory write-up, straight from real workshop data.
📐 5 workshop diagrams for ABD
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.
ABU AEA AEE AEX APQ
Special tools, workshop equipment, test and measuring appliances and auxiliary items required
T10022 Sleeve
3083 Oil seal fitting tool
V.A.G 1331 Torque wrench (5...50 Nm)
V.A.G 1332 Torque wrench (40...200 Nm)
3099 Counter-hold tool
Removing
Remove toothed belt => Page
13-20
, Removing, installing and tensioning toothed belt.
Position crankshaft at TDC No. 1 cylinder:
The chamfered tooth of toothed belt sprocket must align with the marking (2V) on the oil pump.
Turn crankshaft/toothed belt sprocket three teeth anti-clockwise away from TDC:
The third tooth -arrow- to the right of the tooth ground down -A- on the toothed belt sprocket must align with TDC mark on the oil pump housing.
Loosen securing bolt from crankshaft toothed belt sprocket. To do this secure toothed belt sprocket using counter-hold tool 3099.
Note:
This procedure moves the crankshaft to the correct installation position for the oil pump. One of the polygon cams on the crankshaft is uppermost.
Remove crankshaft toothed belt sprocket and toothed belt tensioning roller. To do this secure toothed belt sprocket using counter-hold tool 3099.
Remove sump => Page
17-16
.
Remove suction pipe => Page
17-14
, item
23
.
Remove oil pump.
Remove gasket.
Remove sealant remnants on cylinder block with a flat scraper.
Clean sealing surfaces, they must be oil and grease free.
Installing
Conditions
One of the polygon cams -arrow- on the crankshaft is uppermost.
Work sequence
Fit sleeve T10022 and hexagon socket head bolt from 3083 onto crankshaft and tighten hand tight.
Fit new gasket onto guide pins -A-.
Position one of the oil pump inner rotor markings arrow -A- on installation position mark arrow -B- on oil pump housing cover.
Coat the four crankshaft polygon cams with oil.
Lightly oil sealing lip of oil pump oil seal.
Guide oil pump carefully onto crankshaft polygon cams.
Align inner rotor to crankshaft polygon cams by turning slightly if necessary.
Then slide oil pump carefully onto guide pins.
Tighten oil pump => Page
17-11
, item
19
.
Remove sleeve T10022.
Install suction pipe => Page
17-14
, item
23
.
Install oil sump => Page
17-16
.
Install toothed belt sprocket and tensioning roller, install and tension toothed belt => Page
13-20
, Removing, installing and tensioning toothed belt.
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.