SEAT Workshop Service and Repair Manuals

Remove and install the bottom cover of the timing chain Removing → Anchor. 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	counterhold -T10014-, see equivalent → Anchor

t	Interlocking mandril -T10060 A-, see equivalent → Anchor

t	Bits -T10099-, see equivalent → Anchor

t	Spanner -T10355-, see equivalent → Anchor

t	Tappet -T10368-, see equivalent → Anchor

t	Bracket -U 30025E-, see equivalent → Anchor

Removing

–  Release the fasteners -1 and 2- to remove the central soundproofing sump.

–  Remove the right hand side soundproofing by releasing the attachments -1, 2, 3-.

–  Remove bolts -arrows-. –  Detach the air conduit guard by raising the clips -Pos. 1 and 2-.   Caution If the poly V-belt runs in the opposite direction when it is refitted, this can cause breakage. Before removing, mark direction of rotation of toothed belt with chalk or felt-tip pen for re-installation.

–  Disconnect the air hose -arrows-.

–  To release tension on the Poly-V belt, turn the tensioning device in the -direction of the arrow-. –  Secure tensioner with locking pin -T10060 A-. –  Remove the Poly V belt from the alternator pulley.

–  Rotate the vibration damper with the wrench -T10355- to the TDC position („OT“) -arrow-. l  The notch on the vibration damper should face the mark -arrow- on the lower cover of the distribution chains.   Caution Risk of damage to the engine! To ensure that the valve timing is not adjusted, the crankshaft must not be moved from the TDC position („OT“) while the vibration damper has been removed. –  Unscrew the vibration damper bolt using the wrench -T10355-. –  Remove vibration damper.   Note To protect the teeth, tighten the vibration damper bolt only with the bushing -T10368-

–  Re-tighten the vibration damper and the bushing -T10368-

–  Disconnect the vacuum pipe -1- to the active carbon filter by pressing the release tab.   Note Disregard: -Pos. 2-.

–  Remove the active carbon deposit (with all the connections in place) from the bracket by pulling upwards -arrow- and leave it to one side.

–  Remove the bolt -arrow- and remove the windscreen washer filler tube.

–  Disconnect connector -1-. –  Remove the bolts -arrows- and leave the expansion tank to one side without disconnecting the coolant tubes.

–  Unscrew the bolt -1-, detach the guide tube for the dip stick -arrow- and remove the guide tube from the distribution chain cover.   Note With engines BZB, CDAA and CCZB, the spindle hook can be hung into the engine eye without the support tool -T10014-.

–  Bolt the support tool -T10014- to the engine eyebolt with an M10 nut. –  Position the support -U-30025E- on the edges of the wings. –  Place the spindle hook on the support tool -T10014- and slightly pre-tension.   Caution Take care not to damage the edges of the wings. –  Put tension on the engine using the spindle. –  Remove assembly mounting completely → Chapter. –  Raise the engine tightening the support -U-30025E- spindle.

–  Unscrew the upper bolt -2- of the engine support with the accessories -T10099-. –  Lower the engine tightening the support -U-30025E- spindle. –  Unscrew the lower bolts -1- and -3- of the engine support with the accessories -T10099-. –  Extract the engine support with the bolts.

–  Release the cable harness -arrow-. –  Unscrew the bolt -1- and remove the Poly-V tension device from the ancillary group bracket.

–  Unscrew the supercharging limiter solenoid valve -N75- of the turbocharger -arrows-. –  Loosen the bolts -1-, and remove the turbocharger hose. –  Drain the engine oil.

–  Unscrew bolts -1 to 15-.   Caution Risk of damaging the lower cover of the distribution chain. In order to prevent deformation, you are not allowed to reach in-between the screwing points.

–  Lever off timing chain cover (bottom) (start at points -1 and 2-). Fitting l  Tightening torques → Chapter t  Silicone sealant -D 174 003 A3-   Note t  Note expiry date of silicone sealant. t  The cover must be installed within 5 minutes of applying the silicone sealant. t  Renew the bolts tightened with specified tightening angle. t  Renew seals, gaskets and self-locking nuts. –  Remove sealant remaining on cylinder block with flat scraper.   WARNING Wear eye protection. –  To avoid soiling, cover both ends of the seal with adhesive tape

–  Remove sealant remains on cover (with rotating plastic brush or similar). –  Clean sealing surfaces; they must be free of oil and grease. –  Use old bolts when fitting cover and tighten to 8 Nm. –  Use feeler gauge to measure distance between cover and crankcase (max. distance is 0.2 mm).   Note t  Renew cover if distance exceeds 0.2 mm. t  There is no need to measure clearance between the cover and the upper part of the sump, but the sealing surface should be checked to make sure it is flat.

–  Check that the two pins that centre the cover -arrow- are in place.

–  Cut off the tube nozzle on the front marking (diameter of the nozzle approximately. 3 mm).

–  Apply a line of silicon sealant, as shown in the figure, to the clean surface of the frame seal. t  Thickness of the sealant grub: 2 to 3 mm.   Note t  The cover must be installed within 5 minutes of applying the silicone sealant. t  The bead of sealant must not be thicker than specified, otherwise excess sealant can enter the sump and obstruct the strainer in the oil intake pipe.

–  Tighten bolts -1 to 15- in the sequence shown: 1 -  Tighten bolts to 8 Nm. 2 -  Retighten the bolts 45°.   Note Let the sealing compound dry for approx. 30 minutes after fitting the cover. Only then should the engine be refilled with oil. –  Refill with engine oil. The remaining installation steps are carried out in the reverse sequence. Note the following: –  Install Poly V-belt tension device → Chapter. –  Install poly V-belt → Chapter.

–  Tighten the fixing screws of the engine bearing to 40 Nm using the accessories -T10099- and tighten by 180° (1/2 turns). –  Specified torques for assembly mountings → Chapter.