SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 3 cylinder Fuel-injection engine (1.2 l) | Mixture preparation system, electronic inj.,Gas | Injection system

Intake manifold: removing and installing

t	Removing → Anchor

t	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	Pliers for spring-type clips -VAS 5024 A- → Anchor see equivalency

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

Removing

–	With ignition switched off, disconnect earth wire -arrow- at battery.

–	Remove the intake hose → Item releasing the spring type clips → Item with the spring type clip pliers -VAS 5024A-.

–	Remove throttle valve module -J338- → Chapter.

–	Remove the servo brake pressure hose.

–	Remove hoses from the fastenings -3-.

–	Remove bolts -5-.

–	Remove fuel rail with injectors -7- from housing on the intake collector.

–	Remove connection hose → Item by unscrewing the bolts → Item.

–	Remove connector from the intake manifold pressure gauge sensor -G71- with air intake temperature sensor -G42- → Item

–	Extract the bolts → Item and remove the intake manifold.

Installing

Install in reverse order to dismantling, noting the following:

Note

Replace the O-ring if damaged → Item.

–	Renew the O-rings at all opened connections.

–	Lubricate the O-rings with clean engine oil.

–	Fit the fuel distribution with the injectors secured to the intake manifold and insert it evenly.

–	Fit the fuel rail hose to the intake manifold. Tightening torque: 7 Nm

–	Bolt on the intake manifold. Tightening torque: 20 Nm

–	Purge the fuel system → Chapter.

SEAT Workshop Service and Repair Manuals