65 77 770 Removing and installing (replacing) rollover controller

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 135i, and 2010 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Read and comply with notes on protection against electrostatic damage (ESD protection) . See 61 35... NOTES ON ESD PROTECTION (ELECTRO STATIC DISCHARGE) .

Necessary preliminary tasks:

Disconnect battery negative lead . See 61 20 900 DISCONNECTING AND CONNECTING BATTERY NEGATIVE LEAD (CONVERTIBLE).
Remove backrest for rear seat. See SEATS - REPAIR (CONVERTIBLE) .

Disconnect plug connection (1).

Release screws (2) and remove rollover controller (3).

Installation:

Replace screws (2).

Tightening torque 65 77 7AZ, see 65 77 AIRBAG TRIGGERING CONTROL .

Fig 1: Identifying Plug Connection And Rollover Controller

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Release screws (1) and remove rollover controller (2) from holder (3).

Installation:

Replace screws (1).

Tightening torque 65 77 8AZ, see 65 77 AIRBAG TRIGGERING CONTROL .

Fig 2: Identifying Rollover Controller And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Function check with BMW diagnosis system:

Trigger/retract rollover protection system