Skoda Workshop Service and Repair Manuals

Removing and installing fuel delivery unit Special tools and workshop equipment required t  Wrench for union nut -MP1-227 (3217)- Conditions l  All electrical components are switched off and the ignition key is withdrawn. l  The fuel tank must not be more than 3/4 full → Chapter. Removing   Note t  Observe the safety instructions before starting fitting work → Chapter. t  Observe rules for cleanliness → Chapter. t  If necessary, suction off fuel → Chapter. Vehicles Fabia II –  Position right rear seat vertically → Body Work; Rep. gr.72. Vehicles Roomster –  Fold the rear seat forward and position the middle and rear seat vertically → Body Work; Rep. gr.72. Continued for all vehicles

–  Remove the cover of the fuel delivery unit under the mat.

–  First of all check the plug -arrow- for firm seating. Pull on the plug without pressing the locking mechanism. If the plug was not correctly plugged in, it may have caused a fault. –  Disconnect plug -arrow-.

–  Detach the fuel feed line -4- and the fuel return-flow line -2-.   Note Press in the securing ring in order to unlock the lines. –  Remove the bypass return line -3- from the fuel delivery unit. To do so, open the warm-type clamp.

–  Unscrew union nut with wrench for union nut -MP1-227-. –  Pull the fuel delivery unit and the gasket ring out of the opening of the fuel tank.   Note The old delivery unit must be emptied before disposing of it if it should be replaced. Install If the fuel delivery unit is replaced on the fuel system with bypass return line:

–  Cut off the tip -2- on the marking -arrow-. l  Dimension -a-: 25 mm –  Remove protective caps -1-. Installation is performed in the reverse order, pay attention to the following points:   Note t  When installing, ensure that the float arm of the sender for fuel gauge display -G- is not bent. t  Insert the new dry gasket ring into the opening of the fuel tank and moisten only from the inside with fuel for installing the fuel delivery unit.

t  Pay attention to the installed position of the fuel delivery unit: The marking on the flange must be aligned with the marking on the fuel tank -arrows-. t  Make sure the fuel lines fit tightly.

t  The bypass return line is attached to the support -1- with a spring strap clamp. t  After installing the fuel delivery unit, check whether the lines are also clipped in place on the fuel tank. Before starting the engine, the fuel system must be bled as follows: –  Switch on the ignition and only switch it off once the fuel pump has come to a standstill. Repeat this procedure at least »5 times«.