Replacing Seal on Left or Right Front Door

51 71 115 - Replacing seal on left or right front door





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

Note:
Follow "Instructions" for sticking components with double-sided adhesive tape.
The positioning of the seal must be performed at two points on the front door with positioning aids to be stuck on.
Positioning aids are included with new seals.

Position of seal (3) on front 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 outer skin (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 = - 4.5 mm
F = - 3 mm
G = - 1.5 mm
Positioning aid "A1" for front door, left ("B1" right)





Detach prestamped positioning aid from backing.

- Positioning aid "A1" front door, left (below door lock)
- Positioning aid "B1" front door, right (below door lock)
Align positioning aid with printed help marking (X), bore and contact edge (B) to front 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 "A2" for front door, left ("B2" right)





Detach prestamped positioning aid from backing.

- Positioning aid "A2" front door, left (door lock)
- Positioning aid "B2" front door, right (door lock)
Align positioning aid with printed help markings (X, Y), bores and contact edge (B) to front 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
Y: - Bore for door lock





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 rear (B-pillar).
- 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.