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Assembly overview - sump/oil pump, vehicles with two-piece sump — VW

Assembly overview - sump/oil pump, vehicles with two-piece sump on VW: factory workshop procedure for engines CRUA, CUUA, CUUB, CVCA.

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

factory workshop text 4 engine codes engine codes merged from 3 documented variants

🔧 Engine codes this applies to

CRUACUUACUUBCVCA

📋 Procedure

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

Assembly overview - sump/oil pump, vehicles with two-piece 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 secondary damage, carry out the following work following the repair: carefully clean oil channels and renew oil spray jets, engine oil cooler and oil filter.
Oil spray jet and pressure relief valve
Fig.
Oil pressure control valve
N428
Removing and installing
Chapter
Bolt
8 Nm
Dipstick guide tube
Bolt
8 Nm
Bolt
8 Nm
O-ring
Renew after removing
Baffle plate
Upper part of sump
Removing and installing
Chapter
Tightening sequence and specified torque
Fig.
Lower part of sump
Removing and installing
Chapter
Tightening sequence and specified torque
Fig.
Seal
Renew after removing
Oil level and oil temperature sender
G266
Removing and installing
Chapter
Nut
9 Nm
Seal
Renew after removing
Oil drain plug
30 Nm
Bolt
For bottom section of sump
Tightening sequence and specified torque
Fig.
Bolt
For top section of sump
Tightening sequence and specified torque
Fig.
Oil pump
With vacuum pump
Removing and installing
Chapter
Dowel sleeve
Seal
Renew after removing
Bolt
Renew after removing
Different types of bolted connections:
Torx socket head bolt: 12 Nm +180°
Hexagon bolt: 10 Nm +180°
Bolt
8 Nm + 90°
O-ring
Renew after removing
Oil suction pipe
Toothed belt
Caution
Do not kink or twist toothed belt or damage it on sharp edges.
Removing:
Chapter
“
Removing and installing oil pump
”
Chapter
“
Removing and installing sealing flange on pulley end
”
Cylinder block
O-ring
Renew after removing
Lower part of sump - specified torque and tightening sequence
Tighten bolts in stages as follows:
Stage
Bolts
Specified torque
1.
1 … 20
Screw in diagonally to stop by hand
2.
1 … 20
Tighten in diagonal sequence to 12 Nm
Upper part of sump - specified torque and tightening sequence
Note
The 3 bolts
9
to
11
are coated with a special sealing paint. Ensure the correct allocation when installing.
For allocation of bolts refer to
Electronic Parts Catalogue
.
Renew bolts.
Tighten bolts in stages as follows:
Stage
Bolts
Specified torque/ additional specified angle
1.
1 … 18
Screw in diagonally to stop by hand
2.
arrows
Rep. gr.
34
Removing and installing gearbox; Specified torques for gearbox
3.
1 … 18
Tighten in diagonal sequence to 13 Nm

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Other VW procedures

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.