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Home >> BMW >> 2018 >> X3 M40i >> Repair and Diagnosis >> External Pages >> Different car >> Section 482 (Collision - Body Panel Repair (F25)) >> Body Panel Repair >> 41 00... EMC Screws

41 00... EMC Screws

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(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).