Oil pump, removing and installing
WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and equipment
- T10055 Extractor
- T40026 Locking pin
- Drill bit, 3 mm diameter
- Sealants
- Locking fluid
Removing
- Remove oil pan (lower part). Refer to Removing .
- Turn crankshaft via center bolt of toothed belt gear in direction of engine rotation to TDC Cyl. 3 marking.
- Notch -1- lines up with marking -2-
- If installed, disconnect electrical harness connector at after-run coolant pump.
- Unscrew sealing plug of TDC mark at cylinder block.
- Thread T40026 locking pin into hole of removed sealing plug and tighten.
NOTE:
To do so, turn crankshaft back and forth slightly.
- Unscrew bolts -3- and -6- and remove oil lines.
NOTE:
Oil escapes from oil tubes when removing.
- Unscrew bolts -1-, -2-, -4- and -5- and remove front baffle plate.
- Remove bolt -4- and remove gear -3- for differential gear shaft drive.
- Remove diamond disc from toothed gear.
- Remove bolts -1- and -2- and nuts -5- and -6-.
Fig 7: Installing T10055 Extractor Into M8 Holes Alternating At Oil Pan And Pull Oil Pump Off Of Cylinder Block
- Install T10055 extractor into M8 holes alternating (arrows) at oil pan and pull oil pump off of cylinder block.
Installing
Installation is reverse of removal, noting the following:
NOTE:
Always replace seals and gaskets.
Fig 8: Clean Threads Of Studs 3 Of Remaining Locking Fluid, Replace O-Ring & Coat Circumference Of Hole With Sealant
- Clean threads of studs 3 of remaining locking fluid.
- Replace O-ring (arrow -1-).
- Coat circumference of hole (arrow -2-) with sealant.
- Replace bolts -1- and -2- and nuts -5- and -6- for oil pump threaded connection.
- Insert nuts -5- and -6- with locking fluid.
- Bolt in oil pump uniformly at all mounting points, so that shear pin does not cant.
- Tighten threaded connection to final torque.
- Replace diamond disc on toothed gear -3- for differential gear shaft drive.
- Insert collar of toothed gear for differential gear shaft drive through chain sprocket onto oil pump shaft.
- Loosely thread in bolt -4-.
NOTE:
Courtesy of VOLKSWAGEN UNITED STATES, INC.
To install toothed gear, press piston of chain tensioner back using a screwdriver (arrow).
To install toothed gear, press piston of chain tensioner back using a screwdriver (arrow).
- Turn differential shaft -2-, until a pin diameter 5 mm item -3- (e.g. drill bit) can be slid into alignment hole.
- Tighten bolt -1-.
- Remove pin (drill bit) from alignment hole.
- Remove T10026 alignment bolt and thread sealing plug of TDC marking with new O-ring into cylinder block.
- Install front baffle plate -bolts -1-, -2-, -4- and -5-.
- Install oil tubes -bolts -3- and -6-.
- Install oil pan (lower part). Refer to Oil pan (lower part), removing and installing .
Tightening torques
| Component | Nm | |
| Oil pump to cylinder block | Nuts | 20 + 120°1)2) |
| Bolts | 22 3) | |
| Gear for differential gear shaft drive to oil pump | 20 + 90°3)4) | |
| Front baffle plate to oil pan (upper part) | 10 | |
| Oil pressure line to oil pan (upper part) | 10 | |
| Sealing plug in cylinder block | 25 | |
1) 120° corresponds to one third-turn
2) Insert nuts with locking fluid; locking fluid:
3) Replace bolts
4) 90° corresponds to one quarter-turn