11 21 500 Replacing crankshaft (S63TU)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT: Weight of crankshaft is approx. 20 kg.
Risk of injury from sharp edge of housing.

Necessary preliminary tasks:

Remove engine. See REMOVING/INSTALLING ENGINE ON FRONT AXLE (DUAL-CLUTCH TRANSMISSION)or REMOVING/INSTALLING FRONT AXLE WITH ENGINE/TRANSMISSION (MANUAL GEARBOX) .
Mount engine on ASSEMBLY STAND .
Remove both cylinder heads. See LEFT CYLINDER HEAD and RIGHT CYLINDER HEAD .
Remove HUB FOR VIBRATION DAMPER .
Remove OIL PUMP .
Take off UPPER PART OF OIL SUMPS .
REMOVE lower timing case cover
Remove PISTON .
Remove FLYWHEEL .
Remove radial shaft seals. See CRANKSHAFT SEAL ON THE TRANSMISSION SIDE and RADIAL SHAFT SEAL IN BOTTOM TIMING CASE COVER .
Remove TIMING CHAINS .

Installation note:

Layout of main bearing caps.

All numbers must be read from the cylinder bank (1 to 4) (see arrows).

Fig 1: Identifying Layout Of Main Bearing Caps

Courtesy of BMW OF NORTH AMERICA, INC.

Main bearing caps (1 to 5) opposite the output end on the timing chain drive.

Fig 2: Identifying Main Bearing Caps 1 To 5

Courtesy of BMW OF NORTH AMERICA, INC.

Release main bearing taper screw mounting (1).

Release oil pump spacer bolt (2) (N63O 1).

Fig 3: Identifying Oil Pump Spacer Pins And Main Bearing Taper Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release all threaded support sleeves (1).

Fig 4: Locating Threaded Support Sleeves

Courtesy of BMW OF NORTH AMERICA, INC.

Release collar bolts (M8) in sequence 10 to 1.

Fig 5: Crankshaft Bolts (M8) Tightening/Loosening Sequence (S63TU)

Courtesy of BMW OF NORTH AMERICA, INC.

Release collar bolts (M11) in sequence 10 to 1.

Fig 6: Crankshaft Bolts (M11) Tightening/Loosening Sequence (S63TU)

Courtesy of BMW OF NORTH AMERICA, INC.

Remove main bearing caps 1 to 5.

IMPORTANT: Remove crankshaft with a 2nd person, weight approx. 25 kg.

Lift out crankshaft and set down safely (secure against turning).

Release screw for oil nozzle (1).

Tightening torque: 11 11 7 AZ .

Illustration shows N63.

Fig 7: Identifying Oil Nozzle Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Check oil nozzle (1) for clear passage with compressed air.

Observe fastening on oil nozzle.

Illustration shows N63.

Fig 8: Identifying Oil Nozzle

Courtesy of BMW OF NORTH AMERICA, INC.

Replace CRANKSHAFT MAIN BEARING SHELLS .

Installation note:

Note arrangement of main bearing caps (1 to 5).

All numbers must be read from the cylinder bank (1 to 4) (see arrows).

Fig 9: Identifying Layout Of Main Bearing Caps

Courtesy of BMW OF NORTH AMERICA, INC.

Main bearing caps (1) is opposite the output end on the timing chain drive.

Turn back all threaded support sleeves hand-tight.

Installation note:

Coat all bearing positions with engine oil.

Fig 10: Identifying Main Bearing Caps 1 To 5

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Install crankshaft with a 2nd person, weight approx. 25 kg.

Install crankshaft.

Fit bearing caps (1 to 5).

Set down bearing caps positioned from 1 to 5.

Insert all collar bolts (M11) hand-tight.

Insert collar bolts (M11) in sequence (1 to 10).

Fig 11: Crankshaft Bolts (M11) Tightening/Loosening Sequence (S63TU)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

For a better overview of the screw connection quality, mark the head of all collar bolts after joining with a line (1) using an oil-proof marker pen.

Check angle tightening.

Fig 12: Identifying Lines Marked Across Heads Of Collar Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Secure collar bolt (1) with special tool 00 9 120 .

Tightening torque 11 11 1 AZ .

Fig 13: Tightening Down Main Bearing Cap Collar Bolts Using Special Tool 00 9 120

Courtesy of BMW OF NORTH AMERICA, INC.

Insert all collar bolts (M8) hand-tight.

Secure collar bolts (M8) in sequence (1 to 10).

Fig 14: Crankshaft Bolts (M8) Tightening/Loosening Sequence (S63TU)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

For a better overview of the screw connection quality, mark the head of all collar bolts after joining with a line (1) using an oil-proof marker pen.

Check angle tightening.

Fig 15: Identifying Lines Marked Across Heads Of Collar Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Secure collar bolt (1) with special tool 00 9 120 .

Tightening torque: 11 11 2AZ .

Fig 16: Securing Collar Bolt Using Special Tool (00 9 120)

Courtesy of BMW OF NORTH AMERICA, INC.

Secure all threaded support sleeves (1) with special tool 11 4 350 .

Tightening torque: 11 11 3 AZ .

Fig 17: Securing Threaded Support Sleeves Using Special Tool (11 4 350)

Courtesy of BMW OF NORTH AMERICA, INC.

Secure main bearing taper screw mounting (1).

Tightening torque: 11 11 4 AZ .

Fig 18: Identifying Oil Pump Spacer Pins And Main Bearing Taper Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Check crankshaft COEFFICIENT OF FRICTION .

Determine crankshaft breakaway torque with special tool 00 2 010 .

Rotate crankshaft at central bolt using special tool 00 2 010 .

If the breakaway torque is too high, it will be necessary to correct the BEARING CLEARANCE .

Fig 19: Rotating Crankshaft Central Bolt Using Special Tool (00 2 010)

Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 6 252 to crankcase with magnetic base.

Slide crankshaft in direction of arrow forwards as far as it will go.

Set special tool 11 6 251 to zero.

Slide crankshaft (1) in direction of arrow towards rear and determine value.

Check SIDE CLEARANCE .

Fig 20: Checking Axial Play

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.