BMW X3 Service & Repair Manual: Emc screws
(EMC = Electro-Magnetic Compatibility)
1. Purpose:
- EMC SCREWS are used in the Bonding/Riveting repair method to re-establish bonding transition.
-
They assume the function of welded joints, which ensure transition to ground between the
individual components.
-
The punch or blind rivets used in the repair do not guarantee permanent bonding transition between
the individual components!
-
The EMC screws ensure the operational reliability and safety of the electrical/electronic
components following repairs!
2. Procedure, aluminum front end:
-
Each welded joint which is opened must be replaced by at least 2 EMC screws.
-
Position the 2 screws on the flange on which the weld seam has been separated. In the event of
partial replacement, position the screws in the area of the component overlap.
-
In the case of repairs using partial replacement, the number of EMC screws described in the repair
instructions must be fitted.
- Drill holes to a diameter of 4.2 mm and insert screws.
- Seal EMC screws with PU sealing material (risk of corrosion).
3. Procedure, steel body:
- Install the number of EMC screws described in the repair instructions.
- Drill holes to a diameter of 4.2 mm and insert screws.
- Seal EMC screws with PU sealing material (risk of corrosion).
NOTE:
Following repairs, the corrosion protection work already begins with the
correct removal of the underbody protection, anti-drumming laye ...
Dimensions in mm.
Measurement tolerances:
≤ 1000 mm Â+- 1.5 mm
≥ 1000 mm Â+- 2.5 mm
The control points shown serve to check the body a ...
Other materials:
BMW X3 Owners Manual > Seat and mirror memory: Calling up settings
Comfort function
1. Open the driver's door.
2. Switch off the ignition.
3. Briefly press the desired button 1 or 2.
The corresponding seat position is performed
automatically.
The procedure stops when a reel for adjusting
the seat or one of the buttons is pressed.
Safety mode
1. Clo ...