SEAT Workshop Service and Repair Manuals

High-pressure pump Removing and installing t  High-pressure pump Removing → Anchor t  High-pressure pump Installing → Anchor. Consult the equivalence table for tools and equipment according to applicability among Seat / VW / Audi / Skoda → Chapter.

Special tools and workshop equipment required

t	Hose clamp -T10051-, see equivalent → Anchor

t	Extractor -T40064-, see equivalent → Anchor

t	Pressure element -T40064/1-, see equivalent → Anchor

t	Torque wrench (5 - 50 Nm) -V.A.G 1331-, see equivalent → Anchor

t  Base -3314-, see equivalent → Anchor Removing .   Caution t  When carrying out work on the fuel system, always observe the guidelines for cleanliness and the instructions → Chapter. t  Follow these instructions and rules for cleanliness before starting work and while working on the fuel system. Risk of irreparable damage to high-pressure pump if allowed to run dry. The high-pressure pump must first be filled with fuel before the engine is started. The high-pressure pump must not be allowed to run while still empty. Initial fuel filling → Chapter. –  Remove toothed belt from camshaft and high-pressure pump → Chapter.

–  Undo the bolts -2- and remove the gear wheel of the high pressure pump.   Note Item -1- can be disregarded.

–  Unscrew nut -1- on hub of high-pressure pump; counterhold with counter-hold tool -T10051- for this.

–  Apply puller -T40064- with thrust piece -T40064/1- and bolt -T40064/2- as shown in illustration and pull hub off high-pressure pump. If necessary, counterhold using a 24 mm socket wrench.

–  Unscrew bolts -2-, lay coolant return line aside.   Note Ignore items -1- and -3-.

–  Unscrew bolts -arrows-, lay coolant return line aside.

–  Unscrew bolt -2- and union nuts -1, 3-; remove high-pressure line.

–  Disconnect electrical connectors -1- and -3-. –  Remove fuel supply hose -2- and return hose -4-.

–  Unscrew bolts -arrows- for high-pressure pump. –  Carefully remove high-pressure pump. Fitting . Installation is carried out in reverse order, noting the following: l  Specified torques → Chapter. –  Install toothed belt → Chapter. –  Install high-pressure lines → Chapter.   Caution Risk of irreparable damage to high-pressure pump if allowed to run dry. The high-pressure pump must first be filled with fuel before the engine is started. The high-pressure pump must not be allowed to run while still empty. Initial fuel filling → Chapter.