What quality inspection methods are used in automotive manufacturing?

Automotive quality inspection methods include: Visual inspection by trained operators; dimensional measurement using CMM (Coordinate Measuring Machine), laser scanners, and fixtures; functional testing of systems (electrical, fluid, operational checks); surface quality inspection (paint finish, gaps, flushness); automated vision systems for defect detection; leak testing (water, air pressure); dynamic testing (roll test, squeak and rattle); and final audit inspection sampling. Statistical process control tracks measurements over time. Quality gates at each major process stage ensure defects are caught before progressing to subsequent operations.