Engine Codes CBTA and CBUA

Oil Pump

• In MY 08, the oil pump timing chain was changed from a roller chain to a toothed chain. The gears are now wider and the oil pump shim (T03005/1) must also be used when securing the oil pump.

Special tools, testers and auxiliary items required

• Torque Wrench (5-50 Nm) (V.A.G 1331)

• Counterhold Tool Touareg V10 (T10172)

• Oil Pump Align Plate (T03005)

• Oil Pump Shim (T03005/1)

Removing

- Remove the upper oil pan. Refer to => [ Upper Oil Pan ] Upper Oil Pan.

- Tension the chain tensioner - 1 -, secure it using the locking pin (T10115) and remove it.






- Remove the bolt - 1 -.






Hold the sprocket - 2 - in place using the counterhold tool Touareg V10 (T10172).

- Remove the sprocket from the oil pump and remove the oil pump.

Installing

• The crankshaft is secured

- Replace the O-ring.

• For Jetta from MY 05 through 10, Jetta SportWagen (US)/Jetta Wagon (Canada) for MY 09 and Jetta SportWagen (US)/Golf Wagon (Canada) from MY 10, refer to => [ (Item 25) O-ring ] Service and Repair.

• For Jetta from MY 11, refer to => [ (Item 28) O-ring ] Service and Repair.

- Install the oil pump to the cylinder block hand tight.






- Place the sprocket, with the lettering facing outward, onto the oil pump shaft and secure it with a new bolt - 1 - (chain not yet installed).

Tightening specification: 20 Nm + 90° (1/4) additional turn.

- Loosen the bolts - 2, 3 and 4 -.






• The oil pump must be able to slide easily.

- Check the oil pump align plate (T03005). If there are still protective shields on the magnets, remove them.

- Check that there are no shavings located on magnets of the oil pump align plate (T03005).

• The contact surfaces on the crankshaft, the oil pump align plate, the oil pump shim and the sprocket must be clean.

- Place the oil pump shim (T03005/1) and the oil pump align plate (T03005) on the crankshaft and secure both with 2 bolts - 1 - for the vibration damper.






Tightening specification: 30 Nm

The oil pump is activated by magnets.

- Remove the locking pin (T40069).






- Press the crankshaft in the axial bearing play direction, toward the belt drive - arrow 1 - and secure it with a - shim - as shown in the illustration.






- Press the oil pump lightly toward the chain - arrow 2 -.

• This step is important in order to guarantee correct position of the sprockets to each other.

- In this position, first tighten the bolts - 2 and 3 - and then bolt - 4 - to 25 Nm.






- Install the locking pin (T40069) again. The crankshaft must only be rotated slightly around the Top Dead Center (TDC) position for this. Otherwise there is a risk the valves rest on the pistons.

- Remove the oil pump align plate (T03005) and the oil pump shim (T03005/1).

- If a new oil pump is installed, fill the oil pump with some engine oil via the intake passage and rotate the oil pump several times through.

- Place the chain onto the oil pump sprocket.

- Install the upper oil pan. Refer to => [ Upper Oil Pan ] Upper Oil Pan.

- Install the guide rail - 2 -, relieve the tension on the chain tensioner - 1 - and remove the locking pin (T10115).






• Make sure that the chain lies correctly in the guide rail - 4 - and in the tensioning rail - 3 -.

- Adjust the valve timing. Refer to => [ Valve Timing, Adjusting ] Adjustments.

The rest of the installation follows the reverse of the removal procedures. When doing this note the following:

• Remove the locking pin (T40069) from the rear of the cylinder block and install the locking bolt (30 Nm).

- Fill the coolant. Refer to one of the following:

• Jetta from MY 05 through 10, Jetta SportWagen (US)/Jetta Wagon (Canada) for MY 09 and Jetta SportWagen (US)/Golf Wagon (Canada) from MY 10, refer to => [ Draining and Filling ] Procedures.

• Jetta from MY 11, refer to => [ Draining and Filling ] Procedures.