VDA 6.3 Audit: From 68% to 92% in 8 Weeks
How systematic preparation and finding closure transformed a failing audit score into certification-ready status for a Tier-2 automotive supplier.
At a Glance
At a Glance
| Duration | 8 weeks to re-audit |
|---|---|
| Team Role | VDA 6.3 Process Auditor & Preparation Coach |
| Audit score improvement | +24 points(from 68% to 92%) |
The Challenge
A Tier-2 supplier of precision machined components received a VDA 6.3 process audit score of 68% during a customer assessment. With a minimum threshold of 80% required to maintain approved supplier status, they had 10 weeks to close findings and pass a re-audit or face business loss.
The supplier had never faced formal VDA 6.3 scrutiny before. Their quality system was functional but not structured according to VDA process audit requirements. They needed both immediate gap closure and capability building for sustainable compliance.
Specific Problems
Below-threshold audit score
Risk of losing approved supplier status — 68% vs 80% minimum requirement
14 findings requiring closure
6 major, 8 minor findings across P2-P6 — 14 findings in 8 weeks
No VDA 6.3 experience
Team unfamiliar with process audit methodology
Documentation gaps
Control plans and FMEAs not linked properly
Limited preparation time
Re-audit scheduled in 10 weeks, 2 weeks already passed
Business Impact
The consequences of failing the re-audit were significant: • Customer relationship – 5-year partnership at risk, €1.8M annual revenue • New program access – Blocked from quoting on upcoming platform • Cascading audits – Other customers likely to request similar assessments • Competitive position – Competitors positioned to take business
The Approach
Gap Analysis and Prioritization (Week 1)
We started with a detailed review of audit findings, mapping each to specific VDA 6.3 questions and process elements.
Actions:
- Reviewed audit report and categorized findings by process element (P2-P7)
- Prioritized 6 major findings for immediate attention
- Created RACI matrix assigning owners to each finding
- Developed 8-week timeline with weekly milestones
Documentation Alignment (Week 2-4)
Many findings stemmed from documentation that existed but was not structured or linked according to VDA expectations.
Actions:
- Rebuilt Control Plans with direct FMEA traceability
- Updated PFMEAs to include detection controls referenced in audit
- Created process flow diagrams for each audited area
- Developed turtle diagrams for key processes
Process Implementation (Week 3-6)
Beyond documentation, several findings required actual process changes and new controls.
Actions:
- Implemented incoming inspection for critical supplier characteristics
- Established SPC monitoring at 3 key process steps
- Created standardized reaction plan for out-of-control conditions
- Trained operators on updated work instructions and controls
Internal Audit and Coaching (Week 6-8)
Before the customer re-audit, we conducted a full internal VDA 6.3 assessment and coached the team on audit interaction.
Actions:
- Conducted mock VDA 6.3 audit covering all P2-P7 elements
- Identified 3 remaining gaps and closed before re-audit
- Coached process owners on explaining their processes to auditors
- Prepared evidence packages for each finding closure
The Results
Overall audit score
Before
68%After
92%Major findings
Before
6After
0Minor findings
Before
8After
1Process element scores (P5-P6)
Before
58%After
94%Business Impact
- Approved supplier status maintained
- Invited to quote on new platform program (€2.4M potential)
- Internal team now capable of conducting VDA 6.3 self-assessments
- Documentation structure reusable for IATF 16949 preparation
Key Insights
Patterns Identified
- Most findings were documentation structure issues, not missing processes
- P5-P6 (Production) had lowest scores due to undocumented controls
- Team had knowledge but could not articulate it in VDA language
Critical Success Factors
- Early prioritization of major findings prevented last-minute scramble
- Process owners took ownership rather than quality doing everything
- Mock audit revealed gaps that would have been found in re-audit
- Focus on sustainable fixes, not just audit-passing documentation
"VDA 6.3 success is not about creating perfect documentation. It is about demonstrating that you understand your processes, control your risks, and can explain both to an auditor. The documentation supports that story."
Deliverables
| 🔄 Finding closure tracker with evidence | |
|---|---|
| 🔄 Updated Control Plans with FMEA linkage | |
| 🔄 Process flow diagrams and turtle diagrams | |
| 🔄 SPC implementation for critical characteristics | |
| 🔄 Operator training records | |
| 🔄 Internal VDA 6.3 audit report | |
| 🔄 Evidence package for customer re-audit |
Download PDF Version
Get this case study as a PDF for easy sharing with your team or for offline reading.
Enter your work email to receive the download link
Facing Similar Challenges?
Ready to transform your quality process?
Let's discuss how we can help you achieve similar results. Schedule a consultation to explore solutions tailored to your specific situation.