Replacing Seal on Left or Right Rear Door

51 71 215 - Replacing seal on left or right rear door





Necessary preliminary tasks:
- Remove cover on inside door window frame
- Detach door brake on door pillar Service and Repair

Note:
The positioning of the seal must be performed at three points on the rear door with positioning aids to be stuck on.
Positioning aids are included with new seals.

Position of seal (3) on rear door:





Area (A) at distance (G) to door rabbet.

Area (B) at line (A) to positioning aids (2) to be stuck on. Positioning aid (2) must be stuck on flush with door panel (4).
Area (C) at distance (E) to door inner panel.
Area (D) at distance (F) to door fold.
Clean bonding surfaces on paint with adhesive cleaner (sourcing reference: BMW Parts Service).
E = - 4.0 mm
F = - 4.0 mm
G = - 1.5 mm
Positioning aid "C1" for rear door, left ("D1" right)





Detach prestamped positioning aid from backing.

- Positioning aid "C1" rear door, left (above door brake)
- Positioning aid "D1" rear door, right (above door brake)
Align positioning aid with printed help markings (X), bore and contact edge (B) to rear door and press.
Contact edge (B) must be flush with door inner panel.
Adhesive tape of seal must rest on positioning edge (A) during sticking.
X - Start of bend radius



Positioning aid "C2" for rear door, left ("D2" right)





Detach prestamped positioning aid from backing.

- Positioning aid "C2" rear door, left (door brake, top)
- Positioning aid "D2" rear door, right (door brake, top)
Contact edge (B) must be flush with door inner panel.
Align positioning aid with printed help marking (X) and contact edge (B) to rear door and press.
Adhesive tape of seal must rest on positioning edge (A) during sticking.
X = - Start of bend radius
Positioning aid "C3" for rear door, left ("D3" right)





Detach prestamped positioning aid from backing.

- Positioning aid "C3" rear door, left (door brake, bottom)
- Positioning aid "D3" rear door, right (door brake, bottom)
Align positioning aid with printed help markings (X), bore and contact edge (B) to rear door and press.
Contact edge (B) must be flush with door inner panel.
Adhesive tape of seal must rest on positioning edge (A) during sticking.
X - Start of bend radius





Important!
- Do not grip bonding surface.
- It is not the length of pressing in time but rather the level of pressing (approx. 10 ... 15 N/cm2) which is decisive here.
- Separation of seal after pressing destroys the adhesive layer.

Note:
After being pressed on gently, seal can be pulled off again up to 3 times. Do not dirty adhesive area.





Clean bonding surfaces on paint with adhesive cleaner (sourcing reference: BMW Parts Service).
Suspend seal (1) with open lip pointing inwards over door.

Important!
Contact point of seal must be situated on underside of door after gluing.

Glue seal as follows:
- Position seal with color or symbol coding on door window frame at top on B-pillar and C-pillar in accordance with overview below. Contact point is located at the bottom.
- Pull protective film (liner) off seal in stages.
- Gently press seal without stretching up to start of positioning aids.
- Check positioning of seal, correct if necessary (sag max. 30 mm).
- Firmly press seal vertically onto bonding surface.
- Pull remaining protective film (liner) off seal.
- Press remaining seal without stretching.
- Check positioning of seal, correct if necessary and firmly press.
Remove positioning aids and assemble front door.