TechnicianVision · Knowledge base
Steel Spot And Plug Weld Nugget Size: BMW/Mini - UPDATE
I-CAR · March 11, 2021 · BMW, Mini
Summary
This document outlines BMW and Mini welding requirements, specifying that technicians must replicate the original factory weld quantity and locations using STRSW or GMA (MAG) welding. It establishes that while no specific nugget size is defined, plug weld bore holes must be 8 mm in diameter, and spot welds must maintain a minimum distance of 25 mm from each other.
What to do on the job
Replicate the original factory weld quantity and locations, prioritizing spot welding where accessible, and use an 8 mm bore hole diameter for all MAG plug welds.
How to use it
Use this document to justify the time and materials needed for 8 mm plug weld hole preparation and to defend the use of STRSW over MAG welding where accessible. It also serves as official backing to ensure weld spacing (minimum 25 mm) and factory weld counts are strictly adhered to during structural repairs.
This page is a summary written by TechnicianVision. The document itself belongs to its publisher — follow the link above to read it in full.
TechnicianVision puts procedures like this next to the repair order you are working on. Create a free account →