Place the drive chain onto the removed camshaft chain sprockets as follows

WARNING: This page is about a different car, the 2009 Audi TT and 2008 Audi TT. However, it is still accessible from the selected car via links, so may be relevant.

-- Oil journal surfaces of camshafts.

Cams -A- of cylinder 4 must face each other.

Fig 1: Cams And Notches
Courtesy of AUDI OF AMERICA, LLC
The notches -arrows- on both camshafts must align.
The side surfaces of the notches must be exactly vertical.

-- Place camshafts together with drive chain in cylinder head and in chain tensioner.

-- Verify TDC position of camshafts again.

Cams -A- of cylinder 4 must face each other.

Fig 2: Cams And Notches Installed
Courtesy of AUDI OF AMERICA, LLC
The notches -arrows- on both camshafts must align.
The side surfaces of the notches must be exactly perpendicular to the cylinder head.

-- Oil journal surfaces of camshafts.

-- Apply an even, light sealant bead into the clean groove of the guide frame.

Fig 3: Identifying Old Sealant On Guide Frame Groove And From Sealing Surfaces

Courtesy of AUDI OF AMERICA, LLC

Sealant

NOTE:

Sealant must not be applied too thickly.

Attaching and bolting the guide frame should be performed without interruption because the sealant begins to harden immediately as soon as it contacts the sealing surfaces.

Note the expiration date of the sealing compound.

-- Set the guide frame in place so that it can get by the EGR vacuum regulator solenoid valve -N18- -arrow-.

Fig 4: Setting Guide Frame In Place So That It Can Get By EGR Vacuum Regulator Solenoid Valve N18

Courtesy of AUDI OF AMERICA, LLC

-- Replace guide frame bolts.

NOTE:

The placement of the camshafts must be exact within the axial bearings of the guide frame.

-- Tighten bolts in several stages in tightening sequence. Refer to Figure.

Fig 5: Identifying Cylinder Head Bolts Tightening Sequence

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Ensure guide frame is not tilted.

-- Then check TDC position of camshafts by inserting the -T10252- as far as stop.

Fig 6: Identifying Camshafts Secured Using Camshaft Locator T10252

Courtesy of AUDI OF AMERICA, LLC

NOTE:

Rotate camshafts back and forth slightly if necessary to insert the -T10252-.

Ignore -arrows-.

-- If the -T10252- cannot be inserted, remove guide frame again and repeat camshaft installation VALVE STEM SEALS WITH CYLINDER HEAD REMOVED .

-- Remove the -T10252-.

-- Drive in the sealing cap VALVETRAIN OVERVIEW with the thrust piece 3334 approximately 1 to 2 mm deep.

-- Install camshaft sealing ring. Refer to EXHAUST CAMSHAFT SEAL .

-- Install the rear toothed belt guard.

-- Insert fitting key into camshaft.

-- Install the camshaft sprocket. Hold the camshaft sprocket with the 3036 and tighten the bolt

Fig 7: Counterholding Camshaft Gear Using 3036 Retainer

Courtesy of AUDI OF AMERICA, LLC

NOTE:

When turning camshaft, pistons may not be at TDC for any cylinder. Valves/pistons may be damaged.

Be sure fitting keys are properly seated.

-- Install toothed belt. Refer to TOOTHED BELT, WITHOUT DIVIDED TOOTHED BELT GUARD .

-- Install camshaft adjuster. Refer to CAMSHAFT ADJUSTER .

-- Install cylinder head cover. Refer to CYLINDER HEAD COVER .

Assemble in reverse order of disassembly.