Oil pump and oil pan (Audi A4 B6)

Table of contents: Oil pump and oil pan. Petrol engines… ↓ Oil filter base with elements.… ↓ Oil pump and lubrication system… ↓ Chain drive oil pump. V6 engine ↓ Oil pan and oil cooler with… ↓

Oil pump and oil pan. Petrol engines 1.8 l (AVJ, BFB)

1 - Bolt, 28 Nm
2 - Torque support stop
3 — Oil pan
4 — Oil pump. With a 12 atm safety valve. Before installation, check if there are two bushings (12) for centering the oil pump on the cylinder block.

If there are grooves on the working surface and gears, replace them. Tightening torque of the oil pump cover: 10 Nm

5 — Oil pump sprocket. Installed uniquely
6 - Screw, 22 Nm
7 — Oil pump drive chain. Before removing, mark the direction of rotation. Check for wear
8 - Bolt, 15 Nm
9 — Front sealing flange. Installed with silicone sealant, e.g. AUDI-D 176 404 A2. Replace the sealing ring on the pulley side
10 — Chain tensioner, 16 Nm. Cannot be disassembled. Observe the installation position. When installing, pre-compress the spring and hook it. If the spring breaks, replace the tensioner as a set
11 — Oil pump sprocket
12 - Centering bushings, 2 pcs.
13 — O-ring. Be sure to replace it
14 - Bolt, 16 Nm
15 — Suction pipe. If dirty, clean the mesh
16 - Obstruction to flow
17 - Bolt, 16 Nm
18 - Bolts, 15 Nm. They are tightened crosswise in several steps
19 - Bolt, 40 Nm
20 — O-ring. Be sure to replace
21 — Oil drain plug, 30 Nm
22 - Seal. Be sure to replace
23 — Turbocharger oil return line
24 - Bolt, 10 Nm

Remove both rear oil pan mounting bolts (1) and (2) with a socket wrench (refer to the illustration above). To do this, on vehicles with manual transmission, turn the flywheel (3) so that the groove (arrow in the illustration below) was located opposite the screw.

Rear oil pan mounting bolts

Preliminary tightening of bolts (1) to (18) is performed crosswise with a torque 5Nm and then in a moment 45Nm. Bolts M10 (arrows in the illustration below) tightened to a torque of 40 Nm. Bolts (1) to (18) are tightened crosswise to a torque of 15 Nm.

Oil pan mounting bolts

Oil filter base with elements. 4-cylinder petrol engine

1 - Screw cap, 40 Nm
2 - O-ring. Replace
3 - Bypass valve spring, approximately 4 atm.
4 — Bypass valve piston, approximately 4 atm.
5 - Gasket. Replace
6 — Oil retaining valve, 8Nm. Mounted in the oil filter bracket
7 — O-ring. Replace
8 - Latch
9 — Crankcase breather pipe
10 - Bolt, 20Nm. When installing, use curing sealant D 000 600 A2
11 - Rear cooler pipe
12 - Screw cap, 15Nm
13 — O-ring. Replace
14 — Oil supply pipe to turbocharger
15 - Hollow bolt, 30Nm
16 — Seals. Always subject to replacement
17 — D/V oil pressure, 1.4 atm., 25Nm. Black insulation. If oil leaks through the sealing washer, replace the latter
18 — O-ring. Replace if there are oil leaks
19 - Bolt, 15Nm+90°. Replace
20 — Gasket. Replace. Insert into the protection in the oil cooler
21 — Oil filter
22 - Nut, 25Nm
23 — Oil cooler. Check the gap between it and the adjacent parts
24 — Oil filter bracket with bypass valve, approximately 4 atm.

Oil pump and lubrication system components. V6 engine

1 — Oil pump. Replaced as a complete assembly
2 — Oil spray valve, 40Nm
3 - O-ring. Replace
4 - Bolt, 45Nm
5 - Intermediate roller
6.7 - Bolt, 10Nm
8 — Crankcase breather
9 — Breather gasket/plate. Replace
10 — Oil control valve, 25Nm
11 — Connector
12 - Bolt, 15Nm
13 — Oil distribution pipe
14 — Cylinder block
15 - Bolt, 10Nm. When installing, use D6 curing sealant
16 — Oil sprayer. Front piston cooling
17 - Metal gasket. Replace
18 — Engine oil temperature sensor G8, 10Nm. If oil leaks through the sealing washer, replace the latter
19 — Seal
20 — Tensioner. Lock before removing
15 - Bolt, 10Nm. When installing, use D6 curing sealant
22 — Sealing ring
23 — Washer
24 — Bearing bushing
25 - Bolt, 25Nm
26 — Tensioner lever

Chain drive oil pump. V6 engine

1 - Oil pump
1a, 1b - Protective plate
1c - Hexagon Head Self-Locking Bolt
1d - Hexagon head bolt
2 - Asterisk
3 - Ball-head screw
4 - Chain
5 - Control pin
6 - Pin
7 — Chain tensioner
8 - Hexagon head bolt
9, 10 — Oil pipe
11 - Hexagon head screw
12 — Washer
13 - Round seal
14 — Plate
17 - Connection

Oil pan and oil cooler with elements. V6 engine

1 — Engine oil dipstick. The oil level should not exceed the MAX mark
2 — Feeler gauge guide tube
3 - O-ring. Replace
4 — Gasket. Replace. Before installation, lubricate the mating surfaces of the cylinder block with D2 grease
5 - Screw cap, 25Nm. If oil leaks through the sealing washer, replace the latter
6 - Oil filter. Loosen with a special key. Tighten by hand. Follow the instructions on the oil filter
7 - Nut, 30Nm
8 — Oil cooler. Lubricate the mating surface with AMV 188 100 02 grease
9 — O-ring. Replace
10 — D/V oil pressure (F1) 1.4 atm., 25Nm. White. If oil leaks through the sealing washer, replace the latter
11 - Bolt, 10Nm
12 — Lower oil pan
13 - Bolt, 10Nm
14 — Sealing washer. Replace
15 — Engine oil drain plug, 30Nm
16 - Bolt, 10Nm
17 — Oil pan cover with two bypass valves: 5 atm. and 11 atm.
18 — Gasket. Replace
19 — Oil intake. Clean if clogged
20 — Upper oil pan