LEMON Manuals: Even more car manuals for everyone
Home >> BMW >> 2012 >> 320i Automatic Trans >> Repair and Diagnosis >> Electrical >> Gauges >> Body Equipment - Repair - F30 >> Front Door Locks, Handles, Fittings >> 51 21 225 Removing and installing or replacing inside door opener in left or right front door

51 21 225 Removing and installing or replacing inside door opener in left or right front door

Necessary preliminary tasks: 

NOTE: Graphic is similar.

Lever out lock (2)

Pull off Bowden cable housing (3) towards rear/top - the Bowden cable feeds out of its own accord in the process.

Installation note: 

To install the Bowden cable, press inner door handle (1) opposite to direction of arrow.

Fig 1: Detaching Bowden Cable
G04752630Courtesy of BMW OF NORTH AMERICA, INC.

Drill out welding spots (1) on door opener (2) with 8 mm dia. weld spot drill bit and remove. door opener (2).

NOTE: Door opener is welded to door trim panel only on initial installation. The door opener is screw-connected on second installation. If applicable, release screws instead of welding spots.
Fig 2: Identifying Welding Spots On Door Opener
G10097080Courtesy of BMW OF NORTH AMERICA, INC.

Replacement: 

Saw off welding pins (1) along edge (2).

Fig 3: Identifying Welding Pins Edge
G10097081Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: Increased risk of damage through welding pin marked red.
Welding pins are not to be completely shortened.
When welding pins are completely shortened, repair screw may leave a pressure mark in the visible area.
Welding pins must protrude by at least dimension (x).
x = 2 mm
Fig 4: Locating Welding Pins Mark
G10097082Courtesy of BMW OF NORTH AMERICA, INC.

Insert door opener in door trim panel.

Installation note: 

Welding pins (1) are not to protrude over door trim panel (2).

Fig 5: Locating Door Trim Panel Welding Pins
G10097083Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Secure door opener (1) on door trim panel (3) with repair screw (2).

Tightening torque 51 41 2AZ .

Fig 6: Locating Door Trim Panel Screw
G10097084Courtesy of BMW OF NORTH AMERICA, INC.