Check connecting-rod bearing clearance

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2014 BMW X6, 2013 BMW X6, 2012 BMW X6, 2011 BMW X6, and 2010 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Piston in BDC position.

Fit special tool 00 2 590 (Plastigage Type PG 1) to the oil-free crankshaft.

Fit bearing caps so that pair numbers match up.

Fig 1: Locating Connecting-Rod Bearing Cap Mark

G04739761

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Do not distort connecting rods or crankshaft.

Use conrod bolts to check conrod bearing clearance.

Conrod bolts with special tool 00 9 120.

Tightening torque 11 24 1AZ, see 11 24 CONNECTING RODS AND BEARINGS

Fig 2: Tightening Connecting-Rod Bearing Cap Bolt

G06178493

Courtesy of BMW OF NORTH AMERICA, INC.

Remove bearing cap and read off bearing play at width of flattened plastic thread with assistance of measurement scale.

Conrod bearing clearance .

Remove plastic thread.
Lubricate crankshaft and bearing shells.
Install new conrod bolts.

Fig 3: Measuring Conrod Bearing Clearance

G04739763

Courtesy of BMW OF NORTH AMERICA, INC.

Secure conrod bolts with special tool 00 9 120.

Tightening torque 11 24 1AZ, see 11 24 CONNECTING RODS AND BEARINGS

Fig 4: Tightening Connecting-Rod Bearing Cap Bolt

G06178493

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.