High Pressure Pump

High Pressure Pump

Special tools, testers and auxiliary items required

• Socket 14 mm (3150)

• Torque wrench (V.A.G 1331)

• Ratchet (V.A.G 1331/1)

• Socket (T40055)

Removing

CAUTION!
• Fuel system is under high pressure! Before opening high pressure components of the fuel injection system, pressure must be relieved to residual pressure => [ High-Pressure Fuel Injection System, Pressure Relief ] Service and Repair.

• Then wrap a clean rag around the connection and relieve residual pressure by carefully loosening the connection.

- Drain coolant.

- Remove front coolant pipe.

- Remove upper part of intake manifold => [ Upper Intake Manifold ] Upper Intake Manifold.

- Remove bolts - 1 through 4 - and - 7 -.





- Loosen union nuts - 5 - and - 6 -.

- If equipped, remove large lifting eye - arrows -.





- Disconnect electrical connectors - 1 - and - 2 -.





• - 1 - depending on version

- Remove bolts - arrows -.

- Carefully lift high pressure lines.

• Do not change bend shape.

- Remove high pressure pump with actuator.

Installing

Installation is in reverse order of removal, note the following:

• Replace O-ring.

- To set high pressure pump in place, lift high pressure lines only slightly.

• High pressure line connections must not show any signs of damage.

• Do not change bend shape of high pressure lines.

- Place high pressure pump with actuator into cylinder head and fasten.

- Hand-tighten union nuts for high-pressure lines.

- Make sure high-pressure lines are seated free of stress.

- To fasten high-pressure line (14 mm) at high pressure pump use torque wrench (V.A.G 1331) with ratchet (V.A.G 1331/1) and socket 14 mm (3150).





- To fasten high-pressure line (17 mm) to high pressure pump, use torque wrench (V.A.G 1331) with reversible ratchet (V.A.G 1331/1) and socket (T40055).





- Install intake manifold upper-part => [ Upper Intake Manifold ] Upper Intake Manifold.

- Install front coolant pipe.

- Fill with coolant.

Tightening Specifications