FixVault

41 00... Soldering Steel Components

WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2016 BMW 435i xDrive, 2016 BMW 435i, 2016 BMW 428i xDrive, 2016 BMW 428i, and 2015 BMW 435i xDrive. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Comply with the following topics from "Body, General":
Safety regulations  . See 4100... SAFETY AT WORK  or 4100... INFORMATION ON HAZARDS .
Handling electrical system, electronics, airbags and restraint systems  . See 4100... HANDLING AIRBAGS AND RESTRAINT SYSTEMS  or 4100... HANDLING ELECTRICAL SYSTEM AND ELECTRONICS .
  1. General information 
    • For repair cases the following procedure will implemented:
      • Autogenous brazing solder
    • The MIG soldering procedure is not used in repairs for strength reasons. MIG soldered/brazed seams used in standard production are replaced during repairs by MAG weld seams.
    • Brazed areas from vehicle production are bonded following the same procedure.
  2. Work materials 
    • Tube pack and torch (autogenous torch)
    • Brazing solder
    • Gas bottles (oxygen and acetylene)
    • Welding goggles
  3. Preparation 
    • Remove the paint and zinc layer in an area of approx. 30 mm around the seam to be soldered.
  4. Implementation 
    • Execute brazed seam without overheating the solder and with low heat dissipation. If necessary, use heat protecting paste.
  5. Subsequent treatment of brazed connections: 
    • Remove burnt residual zinc completely. Align and grind visible connection faces.
    • Remove burnt paint with a stainless steel wire brush.
  6. Notes on melting/tinning: 

    Only applicable within the European Union!

    European used-vehicle regulations prohibit the use of tin containing lead in motor vehicles introduced after 01.07.2003!

    Even out unevenness smaller than 2 mm with filler according to painting handbook

    If an exceptional unevenness is larger than 2 mm, use METAL FILLER .

    Only perform in visible areas of the outer skin and on the carrier support.

    All areas which have covers on the vehicle are not to be processed.