2.0l - Lubrication - Engine Code(s): Caeb (avant) Audi A4 B8

ENGINE OIL

Viscosity classes, oil specifications and oil capacities

OIL PAN AND OIL PUMP OVERVIEW

Note. If large quantities of metal particles or other deposits such as those caused by partial seizure of the crankshaft or connecting rod damage are found in the engine oil, clean the oil channels thoroughly and replace the engine oil cooler to prevent further damage.

Oil pressure, checking, refer to OIL PRESSURE, CHECKING .

Scheme 30

1. Oil Level Thermal Sensor -G266
2. Gasket Replace
3. Bolt Replace Tightening sequence (Scheme 31)
4. Lower Oil Pan Removing and installing, refer to «LOWER OIL PAN»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__lower-oil-pan)
5. Oil Baffle Replace
6. Suction Line Clean strainer if contaminated.
7. Bolt 9 Nm
8. O-ring Replace Lubricate
9. Oil Pump Removing and installing, refer to «OIL PUMP»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pump)
10. Centering Sleeve
11. O-ring Replace
12. Oil Pressure Regulation Valve -N428- Removing and installing, refer to «Oil Pressure Regulation Valve -N428»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pressure-regulation-valve-n428)
13. Bolt 9 Nm
14. Chain Tensioner
15. Drive Chain for Oil Pump Mark the running direction before removing.
16. Bolt 9 Nm
17. Gasket Replace
18. Oil Separator Removing and installing, refer to «OIL SEPARATOR»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-separator)
19. Bolt Tightening sequence (Scheme 33)
20. Upper Oil Pan Removing and installing, refer to «UPPER OIL PAN»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__upper-oil-pan)
21. Bolt Replace Tightening sequence (Scheme 32)
22. Bolt Replace Tightening sequence (Scheme 32)
23. Bolt 20 Nm
24. Gasket
25. Bolt 9 Nm
26. Gasket
27. Non-Return Valve
28. Oil Drain Plug 30 Nm Replace
29. Nut 9 Nm

Scheme 31

Tighten the bolts -1 through 19- in 2 stages as follows

Tighten the bolts to 8 Nm.

Tighten the bolts an additional 45°.

Scheme 32

Tighten the bolts -1 through 13- in 2 stages as follows

1. Tighten the bolts to 15 Nm.

2. Tighten the bolts an additional 90°.

Scheme 33

Tighten the bolts to 9 Nm in the following sequence: -1 to 9-.

Scheme 34

1. Bracket for Assemblies Removing and installing, refer to «ACCESSORY ASSEMBLY BRACKET»(/audi/a4/b8-2007-2012/remont/mechanical/#20l-crankshaft-cylinder-block-engine-codes-caeb-avant__accessory-assembly-bracket)
2. Oil Pressure Switch -F22- 20 Nm Blue insulation Removing and installing, refer to «Oil Pressure Switch -F22»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pressure-switch-f22) Check vehicle diagnostic tester in the "Guided Fault Finding" function
3. Seal Replace
4. Gasket Replace
5. O-ring No replacement part, part of the valve unit delivery package
6. O-ring No replacement part, part of the valve unit delivery package
7. Valve Unit With O-rings
8. Oil Filter Element Remove and install using oil filter wrench 3417
9. Seal Replace
10. Reduced Oil Pressure Switch -F378- 20 Nm Brown insulation Removing and installing, refer to «Reduced Oil Pressure Switch -F378»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__reduced-oil-pressure-switch-f378) Check vehicle diagnostic tester in the "Guided Fault Finding" function
11. Bolt 23 Nm
12. Connection
13. Seal Replace Coat with coolant additive
14. Engine Oil Cooler See note under «OIL PAN AND OIL PUMP OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pan-and-oil-pump-overview) Ensure sufficient clearance to surrounding components Removing and installing, refer to «ENGINE OIL COOLER»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__engine-oil-cooler)
15. Gasket Replace
16. Bolt Tightening sequence (Scheme 35)

Scheme 35

FASTENER TIGHTENING SPECIFICATIONS

Lower Oil Pan, Tightening Sequence

Tighten the bolts -1 through 19- in 2 stages as follows

Tighten the bolts to 8 Nm.

Tighten the bolts an additional 45°.

Upper Oil Pan, Tightening Sequence

Tighten the bolts -1 through 13- in 2 stages as follows

1. Tighten the bolts to 15 Nm.

2. Tighten the bolts an additional 90°.

OIL PRESSURE SWITCH, CHECKING

Check the oil pressure switch, see vehicle diagnostic tester in the "Guided Fault Finding" function.

OIL PRESSURE, CHECKING

Special tools and workshop equipment required

1. Oil Pressure Gauge V.A.G 1342

Test Prerequisites

1. Oil level OK
2. Engine oil temperature at least 80 °C (176 °F) (radiator fan must start up once).

Test Sequence

Note. Place a cloth under the accessory assembly bracket to collect leaking engine oil.

Disconnect the electrical connector -4- on the reduced oil pressure switch -F378-.

Scheme 36

Remove the reduced oil pressure switch -3-.

Screw the V.A.G 1342 into the oil filter bracket in place of the oil pressure switch.

Install the reduced oil pressure switch -- in the V.A.G 1342.

Start the engine.

1. Oil pressure at idle: 1.2 to 2.1 bar.
2. Oil pressure at 2000 RPM: 1.6 to 2.1 bar positive pressure.
3. Oil pressure at 3700 RPM: 3.0 to 4.0 bar positive pressure.

Note. During the break-in phase, the oil pressure may be at 2000/min at 3.0 to 4.0 bar.

Assembling

1. For the correct tightening specifications, refer to «OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant) .

Install the oil pressure switch.

OIL LEVEL, CHECKING

Check the oil level.

OIL SEPARATOR

Special tools and workshop equipment required

1. Engine Support Bridge 10 - 222 A

Removing

Support the engine. Refer to ENGINE, SUPPORT WITH ENGINE SUPPORT BRIDGE .

Loosen the hose clamps -arrows- and remove the air guide hose.

Scheme 37

Remove the left front wheel.

Remove the noise insulation. Refer to Description and Operation .

Remove the left wheel housing liner. Refer to Removal and Installation .

Remove the left engine mount bolt -1-.

Scheme 38

Remove the left engine support.

Remove the oil separator -1 through 9-.

Installing

Install in reverse order of removal. Note the following

Oil separator tightening sequence. (Scheme 33)

1. For the correct tightening specifications, refer to «SUBFRAME MOUNT OVERVIEW»(/audi/a4/b8-2007-2012/remont/mechanical/#20l-engine-assembly-engine-codes-caeb-avant)

LOWER OIL PAN

Special tools and workshop equipment required

1. Used Oil Collecting and Extracting Device V.A.G 1782
2. Hand drill with plastic brush attachment
3. Protective goggles
4. Silicone sealant

Removing

Remove the noise insulation. Refer to Description and Operation .

Remove the crossbrace -4-. Refer to Removal and Installation .

Scheme 39

Remove the stabilizer bar -1-. Refer to Removal and Installation .

Remove the bolts -2- and nuts -3-.

Move the steering gear -5- slightly to the right, lower it approximately 10 cm and then tie it up.

Remove bolt -arrow-.

Scheme 40

Remove the steering column -1- from the steering gear -2-.

Place the V.A.G 1782 under the engine and drain the engine oil.

Note. Observe disposal regulations!

Disconnect the connector from the oil level thermal sensor -G266- -arrow-.

Scheme 41

Remove the oil level thermal sensor.

Remove the bolts -1 through 19-.

Remove oil pan, if necessary loosen by applying light strikes with a rubber hammer.

Installing

1. For the correct tightening specifications, refer to «OIL PAN AND OIL PUMP OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pan-and-oil-pump-overview)

1. Silicone sealant

Note. Note the expiration date of the silicone sealant. The oil pan must be installed within 5 minutes after application of silicone sealant. Replace the bolts which are being tightened with an additional turn. Replace sealing rings, seals and self-locking nuts.

Spray the sealing surface with sealant remover and allow it to work.

Remove any sealant residue on the upper oil pan using a flat blade scraper.

Remove any remaining sealant on lower oil pan using for example a rotating plastic brush.

Scheme 42

Clean sealing surfaces, must be free of oil and grease.

Cut the tube nozzle at the front marking (nozzle diameter: approximately 3 mm).

Scheme 43

Apply silicon sealant to clean sealing surfaces of the lower oil pan as shown in illustration.

Scheme 44

1. Thickness of sealant bead: 2 to 3 mm

Note. The oil pan must be installed within 5 minutes after application of silicon sealant. The sealant bead may not be thicker than specified, otherwise excess sealant could enter the oil pan and clog the oil intake tube.

Position the lower section of the oil pan immediately and tighten the bolts, tightening sequence. (Scheme 31)

Note. After installing oil pan, allow sealant to dry for approximately 30 minutes. Only after then may the engine oil be replenished.

Fill the engine oil and check the level.

Install the steering gear. Refer to Removal and Installation .

Install stabilizer bar. Refer to Removal and Installation .

Install the crossbrace. Refer to Removal and Installation .

Install the noise insulation. Refer to Description and Operation .

Assemble in reverse order of disassembly.

OIL PUMP

Special tools and workshop equipment required

1. Assembly Tool T10118
2. Locking Tool T40265

Removing

Remove the lower oil pan. Refer to LOWER OIL PAN .

Remove the oil baffle -arrows-.

Scheme 45

Pull the chain tensioner spring with the T10118 in the direction of the -arrow- and secure it with the T40265.

Scheme 46

Remove the bolts -arrows- and the oil pump.

Scheme 47

Installing

Install in reverse order of removal. Note the following

1. Tightening specifications, refer to «OIL PAN AND OIL PUMP OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pan-and-oil-pump-overview) .

Make sure both alignment bushings for centering the oil pump are in there.

Install the chain sprocket for the oil pump and then install the oil pump.

Pull the chain tensioner spring with the T10118 in the direction of the -arrow- and remove the T40265.

Insert the new oil baffle and attach it.

Note. There are plastic ribs on the oil baffle that deform permanently when tightening. The plastic ribs ensure the oil baffle is not loosen and does not rattle. Because of this, always replace the oil baffle.

Install lower oil pan. Refer to LOWER OIL PAN .

Fill the engine oil and check the level.

UPPER OIL PAN

Special tools and workshop equipment required

1. Assembly Tool T10118
2. Locking Tool T40265
3. Hand drill with plastic brush attachment
4. Protective goggles
5. Silicone sealant

Removing

Remove the transmission. Refer to REMOVAL AND INSTALLATION for Transmission 0B6 or REMOVAL AND INSTALLATION Transmission 0BK .

Remove the lower oil pan. Refer to LOWER OIL PAN .

Remove the rear sealing flange. Refer to SEALING FLANGE, TRANSMISSION SIDE .

Remove the oil pump. Refer to OIL PUMP .

Disconnect the connector -1-.

Scheme 48

Remove the bolts -arrows-.

Scheme 49

Remove the bolts -1 through 13- and the upper oil pan.

Installing

1. Tightening specifications, refer to «OIL PAN AND OIL PUMP OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pan-and-oil-pump-overview) .

1. Silicone sealant

Note. Note the expiration date of the silicone sealant. The upper oil pan must be installed within 5 minutes after application of silicone sealant. Replace the bolts which are being tightened with an additional turn. Replace sealing rings, seals and self-locking nuts.

Remove sealant residue from cylinder block with a flat scraper.

Remove any remaining sealant on the upper oil pan using for example a rotating plastic brush.

Scheme 50

Note. See if the timing chain cover is deformed. Then mount the top section of the oil pan without any sealant and check the gap between the cover and the top section. If deformation is found and the cover cannot be aligned, replace the cover after installing the upper oil pan.

Clean sealing surfaces, must be free of oil and grease.

Make sure the oil passages in the upper oil pan and in the cylinder crankcase are clean.

Cut the tube nozzle at the front marking (nozzle diameter: approximately 2 mm).

Apply silicone sealant to clean sealing surface upper oil pan as shown in the illustration -arrows-.

Scheme 51

1. Thickness of sealant bead: 2 to 3 mm

Note. The upper oil pan must be installed within 5 minutes after application of silicone sealant. The sealant bead may not be thicker than specified, otherwise excess sealant could enter the oil pan and clog the oil intake tube.

1. On the transmission side, the upper section of the oil pan and the crankcase must align.

Position the upper section of the oil pan immediately and tighten the bolts, tightening sequence (Scheme 32)

Install the bolts -arrows-. Tightening specifications, refer to item TIMING CHAIN GUARDS, Camshaft Adjustment Valve 1 -N205- OVERVIEW .

Install the rear sealing flange. Refer to SEALING FLANGE, TRANSMISSION SIDE .

Install the oil pump. Refer to OIL PUMP .

Insert the new oil baffle and attach it.

Remove the lower oil pan section. Refer to LOWER OIL PAN .

Assemble in reverse order of disassembly.

Fill the engine oil and check the level.

OIL PRESSURE REGULATION VALVE -N428

Special tools and workshop equipment required

1. Used Oil Collecting and Extracting Device V.A.G 1782

Removing

Remove the noise insulation. Refer to Description and Operation .

Place the V.A.G 1782 under the engine.

Disconnect the connector -1-.

Remove the bolt -2- and the oil pressure regulation valve -3-.

Installing

Install in reverse order of removal. Note the following

1. Tightening specifications, refer to «OIL PAN AND OIL PUMP OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant__oil-pan-and-oil-pump-overview) .

Note. Replace O-ring.

ENGINE OIL COOLER

Special tools and workshop equipment required

1. Drip Tray for VAS 6100 VAS 6208

Removing

Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

Remove the accessory assembly bracket. Refer to ACCESSORY ASSEMBLY BRACKET .

Remove the bolts -4 and 5- and remove the engine oil cooler -3- together with the seal -2-.

Scheme 52

Installing

Install in reverse order of removal. Note the following

1. For the correct tightening specifications, refer to «OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant) .

Note. Always replace gaskets and seals. Secure all hose connections with hose clamps appropriate for the model.

Install the engine oil cooler -3- with a new seal -2-.

Install the accessory assembly bracket. Refer to ACCESSORY ASSEMBLY BRACKET .

Fill with coolant COOLANT, DRAINING AND FILLING => Filling .

Fill the engine oil and check the level.

OIL PRESSURE SWITCH -F22

Removing

Note. Place a cloth under the accessory assembly bracket to collect leaking engine oil.

Disconnect electrical connector -1- on oil pressure switch.

Remove the oil pressure switch -2-.

Installing

Install in reverse order of removal. Note the following

1. Tightening specifications, refer to «OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant) .

Note. Replace the seal. To prevent coolant loss, insert the new oil pressure switch -- in the connecting pieces immediately.

Check the oil level.

REDUCED OIL PRESSURE SWITCH -F378

Removing

Note. Place a cloth under the accessory assembly bracket to collect leaking engine oil.

Disconnect the electrical connector -4- on the reduced oil pressure switch --.

Remove the reduced oil pressure switch -3-.

Installing

Install in reverse order of removal. Note the following

1. Tightening specifications, refer to «OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW»(/audi/a4/b8-2007-2012/remont/lubrication-system/#20l-lubrication-engine-codes-caeb-avant) .

Note. Replace the seal. To prevent coolant loss, insert the new reduced oil pressure switch -- in the connecting pieces immediately.

Check the oil level.

SPECIAL TOOLS

Special tools and workshop equipment required

Scheme 53

Scheme 54

Scheme 55

Scheme 56

Scheme 57

Scheme 58

1. Assembly Tool T10118
2. Locking Tool T40265
3. Oil Pressure Gauge V.A.G 1342
4. Engine Support Bridge 10 - 222 A
5. Used Oil Collecting and Extracting Device V.A.G 1782
6. Drip Tray for VAS 6100 VAS 6208
7. Not illustrated
8. Counter Hold Tool T10355

See also:
• ACCESSORY ASSEMBLY BRACKET
• ENGINE, SUPPORT WITH ENGINE SUPPORT BRIDGE
• Description and Operation
• SUBFRAME MOUNT OVERVIEW
• Removal and Installation
• Removal and Installation
• REMOVAL AND INSTALLATION
• SEALING FLANGE, TRANSMISSION SIDE
• TIMING CHAIN GUARDS, Camshaft Adjustment Valve 1 -N205- OVERVIEW
• COOLANT, DRAINING AND FILLING
• OIL PRESSURE, CHECKING
• LOWER OIL PAN
• OIL PUMP
• Oil Pressure Regulation Valve -N428
• OIL SEPARATOR
• UPPER OIL PAN
• Oil Pressure Switch -F22
• Reduced Oil Pressure Switch -F378
• OIL PAN AND OIL PUMP OVERVIEW
• ENGINE OIL COOLER
• OIL FILTER, OIL COOLER AND OIL PRESSURE SWITCH OVERVIEW