SEAT Workshop Service and Repair Manuals

Removing –  First check whether a coded radio is fitted. If this is the case obtain the anti-theft coding. –  With the ignition switched off disconnect battery earth strap. –  Remove engine cover. –  Drain coolant → Chapter. When opening the fuel system: Observe safety precautions → Chapter.   Warning Fuel supply pipes are under pressure! Before removing from hose connection wrap a cloth around the connection. Then release pressure by carefully pulling hose off connection. –  Now separate fuel supply as well as fuel return pipes at connection on fuel rail. –  Seal the pipes so that the fuel system is not contaminated by dirt etc. –  Now remove the coolant hose connections on the cylinder head. –  Clamp-off/disconnect connections on cylinder head for coolant, vacuum and intake hoses. –  Pull connector(s) off ignition coils. –  Pull off/disconnect all other electrical connections required on cylinder head and place to one side ensuring cylinder head is free.

–  Remove upper bolts -1- on vacuum reservoir bracket. –  Pull off connectors on secondary air inlet valve -2- and the turbocharger divert valve -3-. –  Pull off the connections on connecting hose -4- between turbocharger divert valve and non-return valve. –  Pull off the hose -3- on turbocharger pressure regulation solenoid valve -N75-. –  Remove intake hose from air cleaner. → Item –  Remove heat shield matting from air guide hose (note installation position)!

–  Release the hose from the bracket (hose from active charcoal filter to throttle valve control unit) from which the bolts -1- will be removed. –  Loosen the clamp and pull off the connecting hose -2-.

–  Pull off connecting hose -arrow- which connects charge air cooler to turbocharger. –  Remove the two bolts from bracket for intake hose -1-. –  Loosen the clamp -2- between intake hose and connecting hose to turbocharger.

–  Remove the three turbocharger/exhaust manifold securing bolts -arrows-. –  Remove ribbed belt → Chapter. –  Remove tensioning element for ribbed belt. –  Remove toothed belt guard - upper part.

–  Set camshaft sprocket to TDC No. 1 cylinder by turning the crankshaft. Mark on camshaft sprocket must align with arrow on toothed belt guard. –  Mark D.O.R. of toothed belt. –  Loosen toothed belt tensioning device as follows:

–  Screw tensioning device -T20046- in toothed belt tensioner. –  Align pressure piston using pointed pliers or wire before tensioning (hole in pressure piston must align with hole in housing). –  Tension tensioner pressure piston only sufficiently so as to allow it to be secured with a locking pin -arrow-. –  Take toothed belt off camshaft sprocket. –  Turn crankshaft back slightly. –  Remove tensioning device -T20046-. –  Remove ignition coils. –  Remove cylinder head cover.

–  Loosen socket head bolts in the sequence given and then remove completely.   Note! t  Use key -T20045- for XZN-M10 cylinder head bolts and key -T20079- for Polydrive cylinder head bolts. t  Carefully lift cylinder head off.