BMW 7 Series: Sunroof
REPAIR INSTRUCTIONS FOR BONDED SEALS
1. General information on handling rubber seal profiles
- If seals reveal partly detached protective film on delivery, they must
not be bonded.
- Store seals at 5ºC to 40ºC.
- If, during the handling, the protective film has come off before
bonding, it can still be bonded.
- Bonding at room and object temperature 25º +- 5ºC. Temperatures between
40 and 50ºC significantly
increase initial adhesion.
- Seals, which are subjected to temperatures above 80ºC after bonding,
will be very difficult to remove.
- Maximum storage time for replacement: 2 years (expiry date must be
indicated on the packaging)
2. Damage pattern and repair
2.1 Partially detached bond (rubber-adhesive tape or adhesive tape-paint)
- Up to 120 mm for reworking without auxiliary materials
- Up to 200 mm reworked with pressing-on tools on straight surfaces
a. Cleaning damaged areas:
- Degrease adhesive area on painted side with solvent (e. g. isohexane or
isopropanol, see BMW
Parts Department) and remove other residue as well. Never use paint thinner!
- This will usually partially destroy intact edge adhesive areas.
- When removing, it is important to wipe off the adhesive area of the
adhesive tape with a lint-free
disposable cloth. (e.g. Kimtex blue, see BMW Parts Department)
- Carefully wipe off the adhesive areas.
NOTE: Use necessary cotton- or fluff-free paper towel once only.
When using solvent: Observe the air drying time of > 1 minute.
Do not touch the adhesive area after cleaning.
b. Applying adhesive:
- Apply the adhesive evenly and very thinly to the gasket and then to the
painted area.
- Observe the air drying time of 2-3 minutes.
NOTE: Use the rubber profile adhesive (Terokal 2444 and thinner R)
Maximum mixture ratio:
Adhesive: Thinner = 3 : 1
IMPORTANT: Avoid contact with skin!
Do not apply adhesive to visible painted surfaces.
c. Pressing on rubber seal:
- Press down gasket using contact pressure (forced pressure not necessary)
for at least 1 minute.
IMPORTANT: Load can only be applied to the bond after a period of 2
minutes. This
waiting time is absolutely essential.
2.2 Larger defects (mechanical damage and larger separations of seal)
- Complete replacement of rubber seal necessary.
a. Peeling off damaged rubber seal:
- Beginning at the stop, the gasket with the adhesive tape is slowly
separated from the paint.
The gasket is slowly pulled off at an angle of approx. 20º while applying
constant force.
Pay attention to the constriction of the adhesive tape.
NOTE: Make sure the connection between adhesive tape and gasket is
retained.
When the adhesive tape separates from the gasket, the adhesive tape
remaining on the paint must be fully separated at one location by approx.
10 mm until it is easy to grip.
Pull off the adhesive tape by pulling strongly at an angle of approx. 20º.
When existing gaskets are being peeled off with a hot air blower: Do not
damage paintwork.
Do not detach rubber-adhesive tape connection if at all possible.
b. Cleaning bonding surface:
- Dissolve and wipe away adhesive tape remnants with a disposable cloth
soaked in solvent or
benzine.
Wear protective gloves.
- Before reapplying adhesive, degrease adhesive area on painted side with
solvent (e. g. isohexane or
isopropanol) and remove other residue as well. Never use paint thinner!
- Carefully wipe off the adhesive area.
NOTE: Use necessary cotton- or fluff-free paper towel once only.
When using solvent: Observe the air drying time of > 2 minutes.
Do not touch the adhesive area after cleaning.
c. Prepare gasket:
d. Detaching protective film from bonding surface:
- Pull off the protective film off of the new gasket by approx. 15 cm
using the tab.
IMPORTANT: Once the protective film has been removed, do not under any
circumstances touch the exposed bonding surface.
e. Applying rubber seal:
- Attach gasket on roof aperture edge beginning at rear center. Use upper
lip as reference edge.
Press on the gasket by hand while pulling off the liner at the same time.
Compress the gasket the corners; never stretch it. (critical area)
NOTE: If positioned incorrectly, the gasket can still be pulled off,
repositioned
and pressed on again.
Always ensure that you do not touch the bonding surface with your
fingers or contaminate it in any way.
f. Establishing sealing joint:
- Where the beginning and end meet, a mark is created from pressing the
loose end onto the
beginning of the gasket.
- Cut off the gasket vertically along the marked line (use sharp knife or
special scissors) and press in
place.
- Visually check the pre-bonded gasket.
NOTE: Small areas of gasket can remain stuck to adhesive tape of loose
end.
g. Pressing on gasket:
- Press on the gasket with the hand roller
- Adhesive tape width up to 5 mm Contact pressure approx. 5 N
- Adhesive tape width up to 10 mm Contact pressure approx. 10 N
- Press gasket down firmly with a hand roller. Contact pressure > or = 70
N.
Slide/tilt sunroof gasket only:
NOTE: Firm thumb pressure has approx. 30 N/cm2
3. Checking rubber seal
- Check the bonded gaskets for correct positioning and perfect adhesion.
The bonding can be checked by
pressing back the sealing lip.
- The force required to peel off the gasket immediately after bonding must
be greater than 10 N/cm.
READ NEXT:
Ideal setting
Distance:
Distance (A) between lid and roof at front and rear must be the
same.
Insert special tool 00 9 341 between gasket and cover.
This check (sliding in and pulling ou
Necessary preliminary work
Remove HEADLINING
NOTE:
Fold back both front seat backrests completely towards rear
Remove glass slide/tilt sunroof with aid of a second person.
Installation note:
SEE MORE:
Input/Output - Comfort Access
Fig. 1: Comfort Access Input/Output Diagram
COMPONENTS DESCRIPTION CHART
CAS 4 Car Access System 4
Footwell module (FRM)
Junction box electronics (JB)
Emergency start coil (transponder coil)
Central locking button 12 Driver's door lock cylinder
ID transmitter
D
Concept
The Driving Dynamics Control influences the
driving dynamics properties of the vehicle.
The vehicle can be adjusted depending on the
situation using various driving modes.
General information
The following systems are affected, for instance:
Engine characteristics.
Steptronic transmissio