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Home >> BMW >> 2019 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 301 (Communication Systems - Repair) >> Aerials, BLUETOOTH Aerial >> 65 20 030 Removing and installing/replacing empty housing for roof-mounted aerial

65 20 030 Removing and installing/replacing empty housing for roof-mounted aerial

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IMPORTANT: Note to customer:
In order to guarantee a permanent connection and adhesive hardening:
After bonding the empty housing for the roof-mounted aerial, wait 24 hours before driving the vehicle through a car wash.
NOTE: Clean roof.

Mask roof (2) around empty housing for roof-mounted aerial (3) with yellow plastic adhesive tape (1). To do so, slide plastic adhesive tape under empty housing (3) slightly.

Cut through the adhesive bead and remove the empty housing for the roof-mounted aerial (3).

Fig 1: Identifying Roof, Adhesive Tape And Housing
G04728112Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Empty housing for roof-mounted aerial is secured with window glass adhesive. All preparatory operations correspond to the WINDOW BONDING NOTES .

NOTE: Replace empty housing for roof-mounted aerial if centering pins (1) on empty housing are damaged.

Bonding surface (2) must be clean and free from grease.

Fig 2: Identifying Roof-Mounted Aerial Centering Pins
G04728115Courtesy of BMW OF NORTH AMERICA, INC.

Apply trace of adhesive bead all round outer contour as follows.

Distance between adhesive bead and edge of aerial cover:

  1. 6.5 mm ±1 mm

Start and end of bead trace must have an overlap length of max. 10 mm.

Fig 3: Checking Distance Between Adhesive Bead And Aerial Cover Edge
G04753724Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT: To prevent the adhesive from escaping, the adhesive bead diameter must not exceed max. 2.5 mm to 3.5 mm.
NOTE: Attach the empty housing coated with adhesive by hand. To spread the adhesive better, move the housing back and forth horizontally slightly when pressing down.

Secure empty housing if necessary with adhesive tape and press down uniformly.

After bonding, leave vehicle to stand for at least 3 hours at room temperature.