31 10 001 Completely removing and installing front axle with engine and transmission (S63T0, DKG)

Special tools required:

IMPORTANT: Removal weight approximately 250 kg to 450 kg.
Check vehicle payload.
If necessary, load front footwell with approx. 200 kg.
Note safety information of TABLE LIFT !

Necessary preliminary tasks:

Position vehicle on vehicle hoist so its weight is centered.
Clamp off BATTERY .
Move ENGINE COMPARTMENT LID into service position.
SUCTION OFF air conditioning.
Remove both INTAKE SILENCER HOUSINGS .
REMOVE fan cowl with electric fan.
Remove complete PROPELLER SHAFT .
Remove left and right BRAKE CALIPER and place to one side.
Remove rear right SUSPENSION CROSS-BRACE
Remove AUXILIARY WATER PUMP .
Remove left and right WHEEL ARCH COVER (FRONT SECTION) .
Remove left and right COVER FOR STEERING ASSEMBLIES .
Remove left and right auxiliary radiator . See 17 11 016 REMOVING AND INSTALLING/REPLACING RIGHT AUXILIARY COOLANT COOLER (S63 B44 T 0) or 17 11 017 REMOVING AND INSTALLING/REPLACING LEFT AUXILIARY COOLANT COOLER (S63 B44 T 0) .
Release coolant hoses from radiator.

Release wiring harness from supplementary electronics box (1) and secure on the engine against falling.

Fig 1: Identifying Supplementary Electronics Box

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock and detach vacuum line (1) from vacuum pump.

Fig 2: Identifying Vacuum Line From Vacuum Pump

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Pull off A/C line (3) from A/C line (2).

Tightening torque: 64 53 7AZ .

Fig 3: Identifying A/C Lines And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Pull off A/C line (2) and place to one side.

Tightening torque: 64 53 3AZ .

Installation note:

Replace sealing rings and moisten with refrigerant oil.

Fig 4: Identifying Refrigerant Lines And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Release auxiliary water pump (2) together with bracket in upward direction from holder.

Fix auxiliary water pump (2) to engine with suitable auxiliary materials.

Fig 5: Identifying Auxiliary Water Pump And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Recycling:

Catch and dispose of escaping fuel with auxiliary materials.

Observe country-specific waste disposal regulations.

Unlock and disconnect fuel delivery line (1), and seal off with special tool 13 5 161 .

Seal off fuel delivery line (2) with special tool 13 5 162

Fig 6: Sealing Off Fuel Lines Using Special Tools

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1) from vehicle underbody direction.

Tightening torque 32 31 2AZ .

Installation note:

Replace screw

Detach steering shaft lower section.

Fig 7: Identifying Screw From Vehicle Underbody

Courtesy of BMW OF NORTH AMERICA, INC.

Recycling

Transmission oil emerges when fluid lines are detached from transmission oil cooler.

Catch and dispose of escaping transmission oil in a suitable container.

Observe country-specific waste disposal regulations.

Unlock transmission fluid lines (1) and detach from gearbox oil cooler.

Press in locks (2), raise transmission oil cooler towards top.

Fig 8: Identifying Transmission Fluid Lines With Locks

Courtesy of BMW OF NORTH AMERICA, INC.

Remove circlips (1).

Unlock lines (2) and (3) and pull off from cooling loop.

IMPORTANT: Catch and dispose of emerging oil.

Installation note:

Reinstall circlips.

Fig 9: Identifying Lines With Circlips

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut and remove screw (3).

Fix brake caliper (1) with a suitable auxiliary materials (2).

Installation note:

Keep wishbone to swivel bearing connection clean and free from oil and grease.

Note direction of insertion of screw.

Screw must rest correctly in groove of ball stud.

Replace self-locking nut.

Tightening torque 31 12 6AZ .

Fig 10: Identifying Brake Caliper, Auxiliary Materials And Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1).

Release deformation element (3) from front axle support (2).

Tightening torque 51 11 6AZ .

Fig 11: Identifying Deformation Element, Front Axle Support And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release nut (1) and remove screw.

Release spring strut from wishbone (2).

Installation note:

Replace screw and nut.

Note direction of insertion of screw.

Adhere to the assembly sequence.

Tightening torque 31 12 7AZ .

Fig 12: Identifying Spring Strut, Wishbone And Mounting Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Remove heat shield (1) on left and right of transmission.

Fig 13: Identifying Heat Shield

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Coordinate determination always begins at the top.

Position engine assembly on table top A .

Position transmission on table top B

Table top B is adjustable in a longitudinal direction (see arrow).

Fig 14: Identifying Working Plates

Courtesy of BMW OF NORTH AMERICA, INC.

Structure of table lift .

Position retaining elements (1) with fixture (50) on table top A for front axle support at coordinates 7/3 and 7/6.

Position retaining elements (2) with fixture (80) on table top A for front axle support at coordinates 2/2 and 2/7.

Position retaining elements (3) with fixture (60) on table top B for transmission cross member at coordinates 1/3 and 3/6.

Position additional retaining element (4) with fixture (80) on table top B under transmission oil sump at coordinates 6/4.

Position fixture (5) on table top A for swivel bearing at coordinates 4/1 and 5/8.

Fig 15: Identifying Table Lift Structure

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Possible mounting points for front axle support and transmission.
Note position (1 to 4).

Fig 16: Identifying Mounting Points For Front Axle Support And Transmission

Courtesy of BMW OF NORTH AMERICA, INC.

Secure fixture of swivel bearing (1) on brake disc with wheel studs (2).

Secure adjusting screw (3).

Fig 17: Identifying Fixture Of Swivel Bearing, Wheel Studs And Adjusting Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws (2).

Tightening torque 17 22 5AZ .

Carefully place engine oil cooler (3) on table lift.

Fig 18: Identifying Engine Oil Cooler And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Release grounding cable (2).

Release screws (3).

Tightening torque 22 32 3 AZ.

Fig 19: Identifying Grounding Cable And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1, 2 and 3).

Tightening torque 31 10 1AZ .

Installation note:

Check threads for damage; if necessary, repair with HELICOIL THREAD INSERTS .

M12x1.5x65 screw
M12x1.5x95 screw
M10x35 screw

Fig 20: Identifying Front Axle Screws
Courtesy of BMW OF NORTH AMERICA, INC.

Tighten down first screws (1) and then screws (2).

Completely remove front axle with engine and transmission with lift

81 22 2 184 136 carefully downwards.

NOTE: Graphic diagram N63 Hybrid

Fig 21: Removing Front Axle From Engine And Transmission

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Position the table lift beneath the vehicle.

The inclination of the table lift (1) can be adjusted using the adjusting screws (2).

Fig 22: Adjusting Table Lift Inclination

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Check and add engine oil.
Fill and bleed hydraulic system.
Check line connections for leak tightness
Check and clear the fault memory.