Camshafts, Removing and Installing

WARNING: This page is about a different variant/trim than selected.

Removing

NOTE:

Camshafts and crankshaft must not be rotated when the timing drive is disassembled.
The camshaft bar T10068 serves exclusively to lock the camshaft at TDC. To counterhold, an open-end 32 mm wrench must be set on the hex of the camshaft.
Engine removed
Engine separated from transmission

Remove timing chains for camshafts → Timing Chains for Camshaft Drive, Removing and Installing .

Fig 1: Counterholding At Hex Of Camshaft

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Loosen bolts for camshaft adjuster by counterholding at hex - arrow - of camshaft with an open-end 32 mm wrench.
Remove camshaft adjuster.

Fig 2: Control Housing Bolts

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - arrows - and remove control housing for camshaft adjustment.

Cylinder bank 1 (right)

Fig 3: Intake/Exhaust Camshaft - Cylinder Bank 1 (Right)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove intake camshaft - A - as follows:

Remove bearing caps 1 and 13.
Remove bearing caps 5 and 9.
Remove bearing cap 7.
Loosen bearing caps 3 and 11 alternately and in diagonal sequence, and remove.

Remove exhaust camshaft - B - as follows:

Remove bearing caps 2 and 14.
Remove bearing caps 6 and 10.
Remove bearing cap 8.
Loosen bearing caps 4 and 12 alternately and in diagonal sequence, and remove.

Cylinder bank 2 (left)

Fig 4: Intake/Exhaust Camshaft - Cylinder Bank 2 (Left)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove intake camshaft - A - as follows:

Remove bearing caps 21 and 33.
Remove bearing caps 25 and 29.
Remove bearing cap 27.
Loosen bearing caps 23 and 31 alternately and in diagonal sequence, and remove.

Remove exhaust camshaft - B - as follows:

Remove bearing caps 22 and 34.
Remove bearing caps 26 and 30.
Remove bearing cap 28.
Loosen bearing caps 24 and 32 alternately and in diagonal sequence, and remove.

Continuation for both cylinder banks

Carefully remove camshafts and place on a clean surface.

NOTE:

Ensure that the roller rocker levers and the support elements are not interchanged. If necessary, remove roller rocker levers together with the support elements and place on a clean surface.

Installing

Secure crankshaft in TDC position using crankshaft holder 3242.

Place support elements together with roller rocker levers into cylinder head.
Install roller rocker levers so that they rest on ends of valve stems.
Oil journal surfaces of camshafts.
Place respective camshaft into camshaft bearings of cylinder head.

Camshaft identification cylinder bank 1 (right)

Fig 5: Camshaft Identification Cylinder Bank 1 (Right)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

A - Exhaust camshaft, Identification 07C - Index 104 J

B - Intake camshaft, Identification 07C - Index 102 L

Camshaft identification cylinder bank 2 (left)

Fig 6: Camshaft Identification Cylinder Bank 2 (Left)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

A - Intake camshaft, Identification 07C - Index 101 L

B - Exhaust camshaft, Identification 07C - Index 103 H

Fig 7: Identifying Camshafts Slits

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Insert camshafts into cylinder head in such a way that they are set at TDC ignition timing.

Slits - arrows - in camshafts at front must stand parallel at same height with upper edge of cylinder head.

Fig 8: Coating Face Surface Of Bearing Cap For Axial Bearing With Adhesive Lubricating Paste

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Lightly coat face surface - shown as shaded area - of bearing cap with axial bearing (bearing caps 7, 8, 27, 28) with adhesive lubricating paste G 052 723 A2 .

Cylinder bank 1 (right)

Set camshaft bearing caps in place according to their number identification:

Fig 9: Installation Position Camshaft Bearing Caps, Cylinder Bank 1

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Points - arrow A - of intake and exhaust camshaft bearing caps face outward.
Identification on bearing caps is legible when read from intake side.

Fig 10: Intake/Exhaust Camshaft - Cylinder Bank 1 (Right)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install intake camshaft - A - as follows:

Fasten bearing caps 3 and 11 alternately and diagonally and then tighten to specified torque.
Fasten bearing cap 7.
Fasten bearing caps 5 and 9.
Fasten bearing caps 1 and 13.

Install exhaust camshaft - B - as follows:

Fasten bearing caps 4 and 12 alternately and diagonally and then tighten to specified torque.
Fasten bearing cap 8.
Fasten bearing caps 6 and 10.
Fasten bearing caps 2 and 14.

Cylinder bank 2 (left)

Set camshaft bearing caps in place according to their number identification:

Fig 11: Installation Position Camshaft Bearing Caps, Bank 2

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Points - arrow A - of intake and exhaust camshaft bearing caps face outward.
Identification on bearing caps is legible when read from intake side.

Fig 12: Intake/Exhaust Camshaft - Cylinder Bank 2 (Left)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Install intake camshaft - A - as follows:

Fasten bearing caps 23 and 31 alternately and diagonally and then tighten to specified torque.
Fasten bearing cap 27.
Fasten bearing caps 25 and 29.
Fasten bearing caps 21 and 33.

Install exhaust camshaft - B - as follows:

Fasten bearing caps 24 and 32 alternately and diagonally and then tighten to specified torque.
Fasten bearing cap 28.
Fasten bearing caps 26 and 30.
Fasten bearing caps 22 and 34.

Install control housings for camshaft adjustment → Control Housing for Camshaft Adjustment, Removing and Installing .
Install camshaft adjusters → Installing under Camshaft Timing Adjusters, Removing and Installing .

CAUTION: Camshaft and crankshaft must not be rotated when the timing drive is disassembled.

Before continuing assembly, verify TDC position of camshafts.

Fig 13: Camshaft Bar T10068 Engaging In Both Shaft Grooves

Courtesy of VOLKSWAGEN UNITED STATES, INC.

The camshaft bar T10068 must engage in both shaft grooves.

Install timing chains for camshafts → Timing Chains for Camshaft Drive, Removing and Installing .

Tightening torque

Component		Nm
Bearing cap to cylinder head		5 plus 45°

* 45 corresponds to one eighth rotation.