Skoda Workshop Service and Repair Manuals

Removing and installing bottom part of intake manifold   Note t  Observe safety measures and rules for cleanliness when working on vehicles with liquefied petroleum gas system (LPG) → Chapter. t  Observe safety measures and rules of cleanliness when working on the fuel supply (petrol) → Chapter. t  The fuel lines remain connected. Removing –  Switch off ignition and withdraw ignition key.

–  If present, remove engine cover -arrows-.

–  Unplug connector -1- from secondary air pump motor -V101-. –  Detach pressure hose -2- and intake hose -3- from secondary air pump motor -V101-.

–  Remove bracket -arrows-. –  Remove oil dipstick guide from bracket for secondary air pump -V101-. For vehicles with engine identification characters CHGA   WARNING When loosening the gas line, gas may escape. Wear safety goggles and safety clothing, in order to avoid eye injuries and scalding. Cover the connection point with a cloth and separate carefully. –  Remove gas distribution line → Chapter. –  Remove the bracket for the gas distribution line. Continued for all vehicles

–  Remove bracket with secondary air pump motor -V101- from intake manifold -arrows-.

–  Unscrew screws for petrol fuel distributor and expose wiring loom -arrows-.

–  Unscrew screws -arrows- for bottom part of intake manifold. –  Press both catch pegs on the top part of the intake manifold towards each other and pull out the bottom part of the intake manifold towards the front.

–  Slacken the fuel distributor and evenly detach it together with the injection valves from the bottom part of the intake manifold -arrows- and place it on a clean cloth in the engine compartment. Install Installation is carried out in the reverse order. Pay attention to the following: –  Replace gasket rings between intake manifold and cylinder head. –  Replace gasket rings between injection valves and intake manifold and moisten lightly with clean engine oil. –  Fit on the petrol fuel distributor with the injection valves and press down evenly on the intake manifold. –  Pay attention to the correct position of the gasket rings between the bottom part and the top part of the intake manifold.   Note Secure all hose connections with corresponding hose clips. Tightening torques

Component	Nm
Intake manifold to cylinder head	25
Connecting screws of top part/bottom part of intake manifold	3
Petrol fuel distributor to intake manifold	8

For vehicles with engine identification characters manufactured up to 12.2010 (exhaust emission standard EU-4) –  Interrogate and erase the fault memory of the liquefied petroleum gas control unit (LPG) → Chapter. For vehicles with engine identification characters CHGA manufactured up to 01.2011 (exhaust emission standard EU-5) –  Interrogating and erasing fault memory of engine control unit → Vehicle diagnostic tester. For vehicles with engine identification characters CHGA –  Perform the gas system inspection (GSI) after filling up the gas line → BookletOctavia II.   Caution Check the liquefied petroleum gas system for tightness, for example using the gas leakage detector for natural gas vehicles -VAS 6227-.