61 14 ... Removing and installing/replacing engine compartment B+ terminal

Necessary preliminary tasks: 

• Read fault memory.
• Disconnect Battery Negative Lead
• Remove Both Windscreen Wiper Arms
• Remove Microfilter Housing
• Remove Cowl Panel Cover
• Remove Tension Strut On Spring Strut dome on right
• Remove Electronics Box 

Open cap (1) and release nut underneath.

For tightening torque refer to 61 12 4AZ in 61 12 AUXILIARY CABLES/LEADS .

Remove cable lug mounting from positive battery leads (2).

Fig 1: Identifying Engine B+ Terminal Cap

Courtesy of BMW OF NORTH AMERICA, INC.

Remove cover (1).

Fig 2: Identifying Engine B+ Terminal Battery Lead Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

For tightening torque refer to 61 12 4AZ in 61 12 AUXILIARY CABLES/LEADS .

Remove positive leads.

Release lock (2).

Remove B+ terminal with cover (3).

Installation: 

Cover (3) must snap correctly into B+ terminal.

Fig 3: Identifying Engine B+ Terminal Lock, Retaining Nuts And Frame

Courtesy of BMW OF NORTH AMERICA, INC.