Soldering Steel Components Rep-Alg-RAGRP41-4105322 - V.5

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2023 BMW M5, 2022 BMW M5, 2021 BMW M5, 2020 BMW M5, and 2019 BMW M5. 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 .
Handling ELECTRICAL SYSTEM, ELECTRONICS, AIRBAGS AND RESTRAINT SYSTEMS .

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.
Work materials
- Cable hose assembly and flashlight (oxyacetylene blowtorch)
- Brazing solder
- Gas bottles (oxygen and acetylene)
- Welding goggles
Preparation
- Remove the paint and zinc layer in an area of approx. 30 mm around the seam to be soldered.
Implementation
- Execute brazed seam without overheating the solder and with low heat dissipation. If necessary, use heat protecting paste.
Subsequent treatment of brazed connections:
- Remove burnt residual zinc completely. Align and grind visible connection areas.
- Remove burnt paint with a stainless steel wire brush.
Notes on melting/tinning: