VDA Volume 2: Assuring the quality of deliveries - Production process and product release (PPF)
VDA Volume 2 describes the procedures for production process and product release and is a core element in Germany for customer-specific requirements of car manufacturers and their suppliers. Across the entire supply chain, VDA Volume 2 has great relevance in terms of contract law.
The new VDA Volume 2 (2020 | 6th edition)
The German Association of the Automotive Industry (VDA) published the 6th edition of VDA Volume 2 on the PPF procedure in May 2020. The new edition aims to make the cooperation between organisation and customer in the PPF procedure as smooth as possible and has therefore optimised the PPF procedure and adapted the requirements. In doing so, information regarding the agreement on the scope, deadlines and content of the PPF procedure between supplier and customer in the automotive industry is disclosed. This is to ensure that all the customer's wishes and requirements have been realised before the start of series production.
Graph: Product creation
What has changed?
No more presentation stages
The first major difference in the 6th edition is the dissolution of the template levels. In this way, the individual wishes of the customers, the diversity of the products and the numerous documents can be better addressed. This is illustrated in chapter 5 "Reconciliation to the PPF procedure". For this purpose, the supplier should use Appendix 2 "Reconciliation of the PPF procedure" and document project-specifically which sample parts and documents are to be presented, when and in which condition.
Alignment of the PPF process with the PPAP process
Another important component is the modified release stages and the alignment of the PPF procedure (production process and product release) with the PPAP procedure (Production Part Approval Process) of the AIAG (Automotive Industry Action Group).
Compared to its predecessor, the 6th edition of VDA Volume 2 has twelve chapters instead of ten. The former subchapter 6.5, which has become its own chapter 7 "Special processes", and chapter 10 with the new topic "Re-qualification" have contributed to this.
Chapter 1.2 "Aim of the PPF procedure".
The aim of the PPF procedure is to trace and fulfil the requirements for the production process and the product. In the new edition, the legal, regulatory and approval requirements, such as EU directives, type approval procedures and CE marking, are defined as a part of the requirements.
Annex 1 "Notes on the PPF Record Keeping"
In Annex 1 "Notes on PPF verification", changes have been made with regard to electricity. From point 3.11 onwards, the table shows that the ESD test is now subdivided into three different areas:
- 3.11 "Resistance to Electrostatic Discharge (ESD)
- 3.12 "Electrical Safety / High Voltage Safety
- 3.13 "Electromagnetic compatibility (EMC)".
Integration of the software
The software was already included in the previous edition, but it has been broadened in the sixth edition. Thus, one can find the sub-items in Annex 1 "Notes on PPF evidence" under item "Evidence on the software":
- 6.1 "SW Release for use"
- 6.2 "Determining the SW product"
- 6.3 "Reference to the quality requirements specified in the contract".
- 6.4 "Documentation of the technical SW specifications".
- 6.5 "Evidence of the implementation of the requirements from 6.3 and 6.4, in particular the special characteristics".
- 6.6 "Documentation on FOSS
- 6.7 "List of known errors
- 6.8 "Documentation of the development tools
- 6.9 "Documentation of the test tools
- 6.10 "Documentation of version management".
- 6.11 "Evidence of process evaluation".
What has remained the same?
As in the previous edition, Chapter 3 "Triggers of the PPF process" and the trigger matrix (Appendix 8) are still part of the VDA process. The trigger matrix describes which changes can be made to the product or production process and which have to be communicated to the customer.