11 31 051 Replacing both timing chains (S65)

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

Necessary preliminary tasks:

Release screw plug (1) on bank 1.

Tightening torque: 11 12 4AZ .

Fig 1: Identifying Screw Plug

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Release screw plugs (1).

Tightening torque: 11 11 6AZ .

Release screw (2).

Remove intermediate piece (3) without gearwheel towards front.

IMPORTANT: Gearwheel can fall out.

Fig 2: Identifying Screw Plugs, Screw And Intermediate Piece

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Arrangement of gearwheel and intermediate piece

Gearwheel (1) with dowel pin.

Intermediate piece (2).

Central bolt (3).

Fig 3: Identifying Intermediate Piece, Gearwheel And Central Bolt

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NOTE: Bearing pin (1) is only inserted.

Bearing pin (2) for two tensioning rails.

Remove bearing pin with special tool 11 5 290.

Tightening torque: 11 31 2AZ .

Fig 4: Removing Bearing Pin

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NOTE: Bearing pin (1) is only inserted.

Screw in special tool 11 5 292 at bearing pin (1) and pull out.

Fig 5: Removing Bearing Pin

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Remove bearing pin with special tool 11 5 290.

Tightening torque: 11 31 2AZ .

Fig 6: Identifying Bearing Pin

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Arrangement of both timing chains

Fig 7: Identifying Tensioning Rail, Bank 1, Timing Chain, Bank 1 And Guide Rail, Bank 1

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Remove timing chain, bank 2.

Remove timing chain, bank 1.

Fig 8: Removing Timing Chain, Bank 1

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Assemble engine.