37 13... Removing and installing/replacing pressure lines (front) for oscillating motor/rear axle

Special tools required: 

• 37 1 151 

Recycling: 

Catch and dispose of hydraulic fluid in a suitable container.

Necessary preliminary tasks: 

• Remove TANK UNDERRIDE PROTECTION
• Remove RIGHT UNDERBODY PANELLING

Release banjo bolts of pressure lines (1, 2) to front axle oscillating motor with special tool 37 1 151  .

Release banjo bolts of pressure lines (3, 4) to rear axle oscillating motor with special tool 37 1 151  .

Fig 1: Identifying Pressure Lines Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Installation sequence for pressure lines: 

1. Install pressure lines (3, 4)

   Tightening torque 37 14 14AZ .

2. Install pressure lines (1, 2)

   Tightening torque 37 14 13AZ .

   Fig 2: Identifying Pressure Lines Banjo Bolts

   Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Check seating and position of line holders (1), correct if necessary.

Fig 3: Identifying Line Holders

Courtesy of BMW OF NORTH AMERICA, INC.

Release banjo bolts (1).

Seal pressure lines with suitable sealing plugs.

Installation note: 

Tightening torque 37 14 15AZ .

Fig 4: Identifying Banjo Bolts

Courtesy of BMW OF NORTH AMERICA, INC.

Open holder (1) and remove pressure lines.

Installation note: 

Replace damaged holder.

Fig 5: Identifying Holder

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• Fill and bleed HYDRAULIC SYSTEM
• Check pipe connections for leaks
• Carry out INITIAL DYNAMIC DRIVE OPERATION .