SEAT Workshop Service and Repair Manuals

Pre-wiring for injector-pump units and spark plugs: removal and fitting Special tools and workshop equipment required

t  Extractor -T10312-

t  Spanner -T10310- Removal:   Caution The installation and removal of the pre-wiring must only be carried out at the terminals. If a cable channel comes loose from the retainer clips, the channel will bend and, as play increases, the cable may break. This also applies when changing the injector pump units as well as all work that do not require the central connector to be removed.   Note In case of Piezo injector pump units, the removal of the connecting plug must only be carried out using the extractor unit -T10312-. –  Remove cylinder head cover → Chapter. –  Detach the centre connector on the cylinder head.

–  Fit the wrench -T10310- on the adapter ring and release by turning through 90° (1/4 turn) in the -direction of the arrow-.

–  Gently pull the safety clip -1- upwards using a screwdriver and press the central connector -2- inwards.

–  Move the extractor -T10312- sideways on the injector pump connectors and remove them in the -direction of the arrow-. If the connector is an older version, you will have to use a pincer with long prongs.

–  Extract the connections of the glow plugs -1-. Undo the bolts -2- on the steel retainers and completely remove the pre-wiring. Installation Installation is carried out in the reverse sequence; note the following: –  Fit the pre-wiring and tighten the bolts to a torque of 10 Nm.

–  Guide the central connector through the opening in the bearing cap module, ensuring that the retainer clip is correctly fitted -arrows-.

–  Fit the adapter ring („long“ coloured collar -arrow- indicates 12 o'clock).

–  Fit the wrench -T10310- on the adapter ring and fasten by turning through 90° (1/4 turn) in the -opposite direction to the arrow-.   Note If the adapter ring has been correctly fitted, the „short“ coloured collar faces 12 o'clock. –  Mount the central connector on the cylinder head and lock. –  Install cylinder head cover → Chapter.