Necessary preliminary tasks

• Secure ENGINE IN INSTALLATION POSITION
• Clamp off BATTERY NEGATIVE LEAD
• Remove both BRAKE CALIPERS FROM SWIVEL BEARING and tie up
• Disconnect both plug connections for pulse generators and expose lines up to holder on spring strut
• Detach plug connection for brake pad sensor and expose lines up to holder on spring strut
• Remove FRONT ASSEMBLY UNDERSIDE PROTECTION 
• If necessary, remove radiator seal
• If necessary, remove steering gear cover on left and right
• Remove REINFORCEMENT STRUT/V-STRUT 
• E93: Remove diagonal struts from mounting fixture
• Remove LOWER SECTION OF STEERING SPINDLE FROM STEERING GEAR
• If necessary, disconnect plug connection from ride-height sensor
• If necessary, disconnect vacuum line from electrically operated valve to engine mounts at T-piece

Version with power steering: 

• Draw off and dispose of hydraulic fluid from fluid reservoir
• Disconnect pressure line from vane pump  . See 6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT or 3241060 REMOVING AND INSTALLING OR REPLACING HYDRAULIC STEERING VANE PUMP (N51, N52, N53)
• 335 d: Disconnect COOLER RETURN LINE FROM POWER STEERING LOOP
• Detach RETURN LINE FROM POWER STEERING COOLER and expose line up to connection on power steering gear

Version with active steering: 

Disconnect plug connections (1) and unclip connecting line (2) from front axle carrier.

Fig 1: Identifying Front Axle Carrier Plug Connection And Connecting Line

Courtesy of BMW OF NORTH AMERICA, INC.

Version with Electric Power Steering (EPS): 

Disconnect plug connections (1) and expose wiring harness up to engine carrier.

Installation: 

Plug connections must audibly snap into place.

Make sure wiring harness is correctly laid.

Fig 2: Identifying Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Remove both SPRING STRUTS FROM SPRING STRUT DOME .

Lower front axle carrier  See 6131996 CARRYING OUT STEERING ANGLE SENSOR ADJUSTMENT or 3111506 LOWERING/RAISING FRONT AXLE SUPPORT (SWZ00-2040) .