11 31 051 Replacing both timing chains (S65)

WARNING: This page is about a different car, the 2010 BMW M3, 2009 BMW M3, and 2008 BMW M3. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 5 290
11 5 292

See ENGINE - SPECIAL TOOLS .

Necessary preliminary tasks:

Remove all VANOS gears. See 11 36 142 Removing and installing/replacing left inlet VANOS gear (S65) , 11 36 144 Removing and installing/replacing left exhaust VANOS gear (S65) , 11 36 148 Removing and installing/replacing right inlet VANOS gear (S65) and 11 36 150 Removing and installing/replacing right exhaust VANOS gear (S65) .
Remove radial shaft seal at front.
Remove oil pump .
Remove oil return pump .
Remove oil filter housing .

Release screw plug (1) on bank 1.

Tightening torque: 11 12 4AZ . See CYLINDER HEAD .

Fig 1: Identifying Screw Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw plugs (1).

Tightening torque: 11 11 6AZ . See 11 11 ENGINE BLOCK .

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 Gearwheel, Intermediate Piece And Central Bolt

Courtesy of BMW OF NORTH AMERICA, INC.

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 . See 11 31 CAMSHAFT .

Fig 4: Identifying Bearing Pin And Special Tool (11 5 290)

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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: Screwing Special Tool (11 5 292) At Bearing Pin

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Remove bearing pin with special tool 11 5 290 .

Tightening torque: 11 31 2AZ . See 11 31 CAMSHAFT .

Fig 6: Identifying Bearing Pin

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Arrangement of both timing chains:

Timing chain, bank 2.
Timing chain, bank 2.
Guide rail, bank 1.
Timing chain, bank 1.
Tensioning rail, bank 1.
Bearing pin, inserted type.
Bearing pin for two tensioning and guide rails.
Bearing pin, screwed type.
Guide rail, bank 2.

Fig 7: Identifying Arrangement Of Timing Chains

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Remove timing chain, bank 2.

Remove timing chain, bank 1.

Fig 8: Removing Timing Chain (Bank 1 And Bank 2)

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Assemble engine.