Camshafts and camshaft adjuster, removing and installing: Installing

Fig 1: Sealant Application Area Identified By Hatched Surface

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• Replace rubber/metal gasket for camshaft adjuster and apply a thin coat of sealant AMV 188 001 02 to shaded areas.
• Install drive chain on camshaft sprockets as follows:

Fig 2: Installing Chain So That Colored Markings Are In Line

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• If old chain is re-installed, install chain so that colored markings are in line - arrows  -.

Fig 3: First And Sixteenth Drive Chain Rollers Installed On Chain Gears

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• If new chain is installed, distance between notches - A  - and - B  - on camshafts must be 16 rollers on chain. Illustration shows exact positions of 1st and 16th rollers on sprockets.
• Notch - A  - is offset slightly toward inside in relation to chain roller - 1  -

• Insert camshaft adjuster between drive chain (2 technicians needed).
• Locate camshafts together with drive chain and camshaft adjuster in cylinder head.
• Oil running surfaces of both camshafts.

• Tighten mountings of camshaft adjuster (watch position of dowel sleeves).

Fig 4: Identifying Bearing Cap Positions

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• Tighten bearing caps 2 and 4 of intake and exhaust camshafts alternately in diagonal sequence (watch position of dowel sleeves).
• Install both bearing caps on intake and exhaust camshaft chain sprockets.
• Check correct setting of camshafts:

Fig 5: Checking Position Of Camshafts To Each Other

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• Two markings on camshafts must be in line with two - arrows  - on bearing caps - arrows  -.

Fig 6: First And Sixteenth Drive Chain Rollers Installed On Chain Gears

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• Distance between two - arrows  - on bearing caps or between colored markings is 16 rollers on drive chain.
• Notch on exhaust camshaft is offset slightly toward inside in relation to chain roller - 1  -

• Remove chain tensioner holder 3366.

Fig 7: Identifying Double Bearing Cap Sealant Application Area

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• Apply thin coat of sealant AMV 188 001 02 to shaded area on double bearing cap and install bearing cap (watch position of dowel sleeves).
• Install remaining bearing caps (watch position of dowel sleeves).
• Replace oil seals for intake and exhaust camshafts → Exhaust camshaft oil seal, replacing  on.

Fig 8: Identifying Camshaft Gear Thin Rib Toward Outside And TDC Marking Visible

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• Install camshaft sprocket.

• Note installed position:

Narrow web of camshaft sprocket must face outward - arrows  - and marking for TDC No. 1 cylinder must be visible from front.

• Install securing bolt for camshaft sprocket (use counterhold 3036 ).
• Install camshaft position sensor.
• Install cylinder head cover

Fig 9: Identifying Marking On Camshaft Gear Aligned With Marking On Cylinder Head Cover

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• Align marking on camshaft sprocket with marking on cylinder head cover.
• Align marking on vibration damper with marking on bottom section of toothed belt guard.

• Install toothed belt (adjust valve timing) → Toothed drive belt, removing, installing and tensioning .