SEAT Workshop Service and Repair Manuals

Removing and installing glow plugs t  Removing → Anchor t  Installing → Anchor Check the tool and equipment equivalence table according to the applicability between Seat / VW / Audi / Skoda → Chapter Special tools and workshop equipment required

t  Articulated wrench e/c 10 -3220-, see equivalent → Anchor

t  Base -3314-, see equivalent → Anchor Checking The glow plug system is monitored by the engine control unit's self-diagnosis system. The necessary checks are performed with Guided fault finding. Checking The glow plug system is monitored by the engine control unit's self-diagnosis system. The necessary checks are performed with Guided fault finding.

Removing –  Switch ignition OFF. –  Loosen the engine cover at the locations -arrows- and remove. –  Remove the sound insulation of the injector valves.   Caution Ensure that no line connection is damaged when disconnecting the glow plug connectors, as the entire wiring harness otherwise has to be renewed. When unplugging the glow plug connectors, do not compress the pliers -3314- with too much force so that the support sleeve is not damaged.

Altea - Altea XL - Leon –  Unscrew the securing bolts -arrows- and move the coolant line to one side.

All other vehicles continued –  Unscrew the securing screws of the intake manifold -6- and move the fuel return line to the side. –  Disconnect electrical connector -1- from the fuel pressure sender -G 247-. –  In order not to damage the vacuum lines above the plug connectors of the glow plugs, remove the metal clip for fixing the vacuum line to the intake pipe -5- and place the vacuum line to the side.

–  Open cable guide fasteners -arrows- to free wiring harness.

–  Position pliers -3314- with groove -arrow A- on support sleeve shoulder -arrow B- and pull plugs off glow pin plugs.

–  Remove the connector of the glow plug carefully -in the direction of the arrow-. –  Clean glow plug openings in cylinder head (make sure no dirt enters the cylinder).   Note t  Cleaning procedure: t  Use a vacuum cleaner to remove coarse dirt. t  Spray a brake cleaner or similar suitable product onto the glow plug openings, let it work in briefly, and blow out with compressed air. t  Then clean glow plug opening using a cloth moistened with oil.

–  To loosen the glow plugs, use the jointed spanner -3220-. Installing –  To tighten the glow plugs, use the jointed spanner -3220- with a suitable torque wrench. –  Then tighten glow plugs to specified torque. t  Tightening torque: 18 Nm –  Fit glow plug connectors onto glow plugs and ensure they are properly seated. –  Open cable guide fasteners to free wiring harness. –  Secure wiring harness in cable guide again. –  Remaining assembly is performed in reverse sequence. –  Clear fault memory of engine control unit.