Volkswagen Workshop Service and Repair Manuals

Removing and installing camshaft timing chain Special tools and workshop equipment required

t  Assembly tool -T10352- t  Engine codes CCZA, CCZB, CCZC, CCZD, CDAA, CDAB: assembly tool -T10352/1-

t  Counterhold tool -T10355-

t  Locking pin -T40011- t  Not illustrated. t  Valve lever -T40243- t  Locking tool -T40267- t  Camshaft clamp -T40271- Removing –  Remove timing chain cover (top) → Chapter.

–  Turn vibration damper to »TDC« position -arrow- using counterhold -T10355-. l  Notch on vibration damper must align with arrow marking on cover for timing chains (bottom). l  The markings -1- on the camshafts must face upwards. –  Remove lower timing chain cover:    Passat CC → Chapter    Golf, Eos, Scirocco → Chapter    Tiguan → Chapter   Caution The timing valve has a left-hand thread.

–  Remove control valve using assembly tool -T10352- (engine codes CCZA, CCZB, CCZC, CCZD, CDAA, CDAB: assembly tool -T10352/1-) in direction of -arrow-.

–  Remove bolts -arrows- and detach bearing saddle.

–  Press oil pump chain tensioner in direction of -arrow- and lock in place using locking pin -T40011-. –  Remove oil pump chain tensioner -1-. –  Remove oil pump chain.

–  Unscrew bolts -arrows-.

–  Unscrew bolt -arrow-.

Depending on model, two different chain tensioners may be installed: Variant 1 –  Screw in valve lever -T40243--arrows-. –  Insert scriber or suitable screwdriver in hole of chain tensioner in direction of -arrow 1-, lift locking element for chain tensioner and hold it in that position. –  Slowly push valve lever -T40243- in -direction of arrow 2- and hold it in that position.

–  Secure chain tensioner with locking pin -T40011-.

Variant 2 –  Screw in valve lever -T40243--arrows-. –  Press together circlip -1- of chain tensioner and hold it in that position. –  Slowly push valve lever -T40243- in -direction of arrow- and hold it in that position.

–  Secure chain tensioner with locking pin -T40267-. All –  Remove valve lever -T40243-.

–  Bolt camshaft clamp -T40271/2- to cylinder head and insert it in -direction of arrow 2- between splines of chain sprocket. If necessary turn inlet camshaft in -direction of arrow 1- using spanner.

–  Bolt camshaft clamp -T40271/1- to cylinder head. –  Turn exhaust camshaft in -direction of arrow 1- using spanner and insert camshaft clamp -T40271/1- in -direction of arrow 2- between splines of chain sprocket.

–  Remove tensioning rail for timing chain -2-. –  Remove guide rail for camshaft timing chain -1-. –  Remove timing chain. Installing l  Specified torques → Chapter.   Note

The timing chain links with coloured markings must be positioned at the markings on the chain sprockets. –  Fit timing chain onto inlet camshaft. –  Fit timing chain onto exhaust camshaft. –  Fit timing chain onto crankshaft and hold it in that position.

–  Fit tensioning rail for timing chain and tighten bolt -2-. –  Fit guide rail for camshaft timing chain and tighten bolts -1-.

–  Turn exhaust camshaft in -direction of arrow 1-, remove camshaft clamp -T40271/1- in -direction of arrow 2- from between splines of chain sprocket and relieve tension from camshaft. –  Remove camshaft clamp -T40271/1-.

–  Turn inlet camshaft in -direction of arrow 1-, remove camshaft clamp -T40271/2- in -direction of arrow 2- from between splines of chain sprocket and relieve tension from camshaft. –  Remove camshaft clamp -T40271/2-.

–  Screw in and tighten bolts -arrows-.

–  Attach bearing saddle and screw in bolts -arrows- hand-tight. –  Depending on model, remove locking pin -T40011- or locking pin -T40267-. –  Tighten bolts -arrows- for bearing saddle → Chapter. –  Install timing valve → Item. Further assembly is basically the reverse of the dismantling sequence.