BMW 7 Owners & Service Manuals

BMW 7 Series: Battery/Vapor Separator

CARRYING OUT BATTERY "POWER RESET"

IMPORTANT: Observe SAFETY INSTRUCTIONS FOR HANDLING VEHICLE BATTERY.

The following steps must be carried out for a "power reset"

  • Switch off and disconnect battery charger
  • Turn off ignition
    Vehicles with ID transmitter:
    Remove identification sensor from slot
    Vehicles with comfort access system: Make sure terminal is in 0 position
  • Disconnect battery negative terminal
  • Reconnect battery negative terminal (to ensure bus activity)
  • Waiting time (5- -10 seconds)
  • Disconnect battery negative terminal
  • Waiting time (1 minute)
  • Connect battery negative terminal and tighten, tightening torque 61 21 1AZ
  • Connect and switch on battery charger
  • Switch on ignition.

CHARGE BATTERY

WARNING: Read and comply with SAFETY INSTRUCTIONS pertaining to vehicle battery.

IMPORTANT: To prevent the intelligent battery sensor from malfunctioning, use the charging points in the engine compartment.

NOTE: Use BMW-recommended charging computers* to charge the battery.

*Sourcing reference BMW Workshop Equipment Catalogue

REMOVE AND INSTALL OR REPLACE BATTERY

WARNING: Observe SAFETY INFORMATION for handling the battery.

To ensure the correct safety and convenience functions, install only the original battery (battery size and type) stored in the vehicle order. OBSERVE NOTE ON BATTERY REPLACEMENT.

Necessary preliminary work

  • Remove POWER DISTRIBUTION BOX

Fold back cover (1) as shown.

Slacken nut (2).

Tightening torque 61 21 1AZ.

IMPORTANT: Do not under any circumstances pull/lever safety battery terminal off by force.

Detach safety battery terminal towards top, lay to one side and secure.

Battery/Vapor Separator
Fig. 192: Identifying Battery Back Cover And Nut

Release screw (1) and remove holder (2).

Tightening torque 61 21 5AZ.

Detach vent hose from battery.

Pull out battery.

Installation note: Make sure battery is correctly seated in mounting.

Battery/Vapor Separator
Fig. 193: Identifying Battery Screw And Holder

Replacement:

1. In vehicles with IBS (intelligent battery sensor)

REGISTER battery replacement.

2. Read out fault memory, clear if necessary.

NOTE:

  • Check Control message disappears when fault memory is cleared. This requires that the registration is performed first.

TESTING BATTERY WITH BATTERY TESTER

WARNING: Read and comply with SAFETY INFORMATION pertaining to vehicle battery.

Necessary preliminary work

Remove LUGGAGE COMPARTMENT FLOOR TRIM PANEL.

NOTE: Use BMW-recommended battery tester* to test the battery.

*Sourcing reference BMW Workshop Equipment Catalogue

Procedure:

  • Turn off ignition and close doors
  • Connect battery tester directly to battery terminals
  • Select Battery test and confirm
  • Enter vehicle identification number
  • Enter battery data
  • Carry out battery test

Battery/Vapor Separator
Fig. 194: Identifying BMW-Recommended Battery Tester

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     Carrying Out Steering Angle Sensor Adjustment

    IMPORTANT: In vehicles with active steering, steering angle sensor adjustment is integrated in the service function "INITIAL OPERATION/ADJUSTMENT FOR ACTIVE STEERING " and must not be carried out sep

     Removing And Installing (Replacing) Front Controller

    IMPORTANT: Risk of damage! The button for the controller must not be removed! Necessary preliminary work Remove CENTRE CONSOLE TRIM Release screws (1). Tightening torque 61 31 2AZ. Remove control

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