51 34 171 Removing and installing/replacing rear left or right door window glass (security)

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Necessary preliminary tasks:

Remove SOUND INSULATION IN REAR DOOR
Remove OUTER WINDOW CAVITY COVER STRIP
Remove INNER WINDOW CAVITY COVER STRIP
Remove ROLLER BLIND FOR FIXED DOOR WINDOW GLASS at rear

IMPORTANT:

The insides of the windows have a polycarbonate coating which must not be damaged or scratched.

Clean with antistatic plastic cleaner* only.

* Sourcing reference: BMW Parts Service

Door window glass is rigidly installed with hexagon socket head cap screws (1). Power window unit is not installed.

Fig 1: Identifying Hexagon Socket Head Cap Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken lock nut on hexagon socket head cap screws (1) at front/rear, release hexagon socket head caps screws until door window glass can be fed out towards top rear with special tool 51 3 010 .

Installation:

In order to avoid damaging the door window glass, tighten the hexagon socket head cap screws only to such an extent that the door window glass rests parallel with and without play on the upper stop. If necessary, check play by moving door window glass with special tool 51 3 010 . Tighten down lock nuts on hexagon socket head cap screws again.

Fig 2: Identifying Hexagon Socket Head Cap Screw

Courtesy of BMW OF NORTH AMERICA, INC.

Hexagon socket head cap screw (1), rear.

Fig 3: Identifying Hexagon Socket Head Cap Screws (Rear)

Courtesy of BMW OF NORTH AMERICA, INC.