Volkswagen Golf Service & Repair Manual: Assembly overview - high-pressure pump

Volkswagen Golf Service & Repair Manual / 4- cylinder injection engine(1.4 1 direct inction. turbocharger) / Mixture preparation system, electronic inj., Gas / High-pressure pump / Assembly overview - high-pressure pump

Assembly overview - high-pressure pump

1 -	Roller tappet

When installing lubricate lightly with clean engine oil

2 -

O-ring

Renew

When installing lubricate lightly with clean engine oil

3 -	High-pressure pump

With fuel pressure regulating valve -N276-.

Do not dismantle

Removing and installing → Chapter

4 -	High-pressure pipe

The fuel system is under high pressure.Risk of injury due to fuel which may spurt out.Release high pressure.

→ Chapter

Removing and installing → Chapter

Check for damage before re-installing.

Do not alter shape

Unions must not show any signs of damage

Lubricate thread of union nuts with clean engine oil

25 Nm

5 -

Bolt

Renew

Specified torque and tightening sequence → Fig.

6 -

Hose clip

7 -	Fuel supply line

8 -	Electrical connector

High-pressure pump - specified torque and sequence

To prevent flange of high-pressure pump from being deformed during installation, install high-pressure pump as follows:

–	Tighten bolts in stages as follows:

Assembly overview - high-pressure pump

Stage	Bolts	Specified torque/ additional specified angle
1	-3-	Screw in to contact by hand
2	-3-	Tighten one turn alternately until flange of high-pressure pump makes contact with camshaft housing
3	-3-	20 Nm
4	-3-	Turn 90° further

High-pressure pump

...

Removing and installing high-pressure pump

Removing Engine cold The fuel system is under high pressure.Risk of injury due to fuel which may spurt out.Release high pressure. ...

Other materials:

Removing and installing evacuating and charging valves on low and high-pressure side
Special tools and workshop equipment required Torque wrench -V.A.G 1783 Ratchet insert 1/4 inch -VAS 6234 ...

Removing and installing tank flap unit
Removing – Screw off tank cover. – Remove bolt -3-. – Slightly pull tank flap unit towards rear -arrow a- out of catches. – Swing tan ...

Identification of Denso heater and air conditioning unit
Note Pay attention to correct assignment when replacing components. The combination of different makes of component is not permitted → Electronic Parts Catalogue. – Remove left centre console trim ...