Quality Control and Final Inspection
Quality control and final inspection verify that the repair is correct, complete and safe before release. The exam tests inspection checklists, road-test conditions, rework control, sign-off authority and cleanliness.
Core rules
- Inspect against the job order: every complaint addressed; every replaced part recorded; fluids at correct level; no leaks.
- Check wheel nut torque, brake pedal feel, warning lights, tyre pressure and tool marks.
- Road-test only where authorised and safe; use a defined route and record the result.
- A second person or supervisor should sign off safety-critical work where policy requires.
- If a defect is found, raise rework, correct it and re-inspect; do not release with an open defect.
Worked example
After a front brake job, QC finds a soft pedal and brake fluid at minimum. The vehicle is not released. The technician pressure-bleeds the system, tops up fluid, checks for leaks and road-tests. QC rechecks pedal feel and fluid level, then signs. Reason: the first inspection failed, so release is blocked until rework and re-inspection pass.
Traps
Skipping the road test; the same technician self-certifying without an independent check; releasing with a warning light; hidden faults covered by dashboard covers; no rework record.