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Home >> BMW >> 2012 >> Z4 35is >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Engine - Repair (N54) >> Engine, General >> 11 00 050 Removing and installing engine (N54, N54T)

11 00 050 Removing and installing engine (N54, N54T)

IMPORTANT: Aluminum screws/bolts must be replaced each time they are released. 

Aluminum screws/bolts are permitted with and without

color coding (blue).

For reliable identification:

Aluminum screws/bolts are not magnetic. 

Jointing torque and angle of rotation must be observed without fail (risk of damage). 

Necessary preliminary tasks:

Release nut (1) and disconnect positive battery cable (2) from positive battery connection point.

Fig 1: Identifying Battery Cable And Nut
G06904082Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect fuel lines (1).

Seal fuel lines with special tool 13 5 161 and

13 5 162.

Disconnect tank vent line (2).

Fig 2: Identifying Tank Vent Line And Fuel Line
G06904083Courtesy of BMW OF NORTH AMERICA, INC.

Release bolt (1) from engine oil pipe on oil-to-water heat exchanger.

Remove engine oil pipe.

Installation note: 

Replace all seals.

Tightening torque 17 21 1AZ .

Fig 3: Identifying Engine Oil Pipe Mounting Bolt
G06174849Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 8 680 to lifting eye on gearbox side.

Press locking pin (1) in direction of arrow until locking balls (2) are loose.

Secure special tool 11 8 680 to lifting eye. Release locking pin (1).

Installation note: 

Special tool 11 8 680 is mounted correctly if the locking balls (2) are locked.

Special tool 11 8 680 is firmly secured to lifting eye.

Fig 4: Pressing Locking Pin
G04754750Courtesy of BMW OF NORTH AMERICA, INC.

Attach special tool 11 0 000 to special tool 11 8 680 in eye (1).

Picture shows E9x.

Fig 5: Connecting Special Tool 11 0 000 To Special Tool 11 8 680
G04754751Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) on engine mount on left and right.

Installation note: 

Replace self-locking nut.

Tightening torque 22 11 2AZ .

Fig 6: Identifying Engine Mount Nut
G04739616Courtesy of BMW OF NORTH AMERICA, INC.

Screw in towing hook (1).

Suspend special tool (4) 11 0 000 from engine crane.

Suspend special tool 11 0 000 from the designated mounting eyelets (2) only.

Unscrew left and right engine mounts.

Remove left engine support arm.

Lift engine out with crane.

Fig 7: Identifying Special Tools 11 0 000 And 11 8 680 On Engine Crane
G04754752Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Secure special tool (1) 11 7 310 to steering box.

Fig 8: Connecting Special Tool 11 7 310 To Steering Box
G06904089Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Observe following in case of REPLACEMENT ENGINE  .

Check function of Digital Diesel Electronics.