TechnicianVision · Knowledge base
Back-To-Basics: Repair Tolerances
I-CAR · April 20, 2020
Summary
This article emphasizes the critical importance of repairing vehicles to exact OEM specifications rather than relying on outdated, generic repair tolerances like +/- 3 mm or +/- 5 mm. Modern vehicles feature tighter tolerances and non-adjustable components, making precise three-dimensional measuring essential for proper panel fitment, wheel alignments, and ADAS calibrations.
What to do on the job
Measure the vehicle frequently during the repair process using up-to-date three-dimensional measuring systems and software to ensure exact OEM specifications are met.
How to use it
Use this document to justify the necessity of three-dimensional measuring and setup operations on a supplement. It serves as authoritative industry support to counter insurer pushback regarding generic '+/- 3mm or 5mm' tolerances, proving that modern non-adjustable components and ADAS sensors require exact OEM-specified measurements to function safely.
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