VW 01155 Vehicle Parts - Initial Procurement and Approval of Changes

The “ VW 01155 Vehicle Parts - Initial Supply and Modification Approval” standard, developed by the Volkswagen automotive company , outlines the principles for approving the initial delivery of vehicle parts and any modifications to those parts.

The specifications in the drawings and standards (especially the technical supply specifications, test specifications, and Volkswagen standards) describe the requirements that the supply item must meet. An economic maintenance strategy must be implemented, including verification and documentation of maintenance capacity, incorporating recognized engineering principles in accordance with design guide KR 00020.

The basic material composition of the materials used must be specified in the international material data system or material data sheet system according to the specifications in the VW 91101 standard.

The European Union safety data sheet specified in the hazardous substances regulation must be included in the delivery of substances, compounds and products classified as hazardous according to the European hazardous substances legislation.

Product recycling and recovery strategies (completion of material cycles) or disposal methods (VW 91102 standard) must be specified. The supplier must undertake all tasks resulting from treatment, documentation, and recycling arrangements originating in sectors other than the automotive industry.

The following applies to supply items subject to mandatory component type approval: the appropriate design engineering department must submit the component work permit to the type approval testing department without delay.

Changes to the supply item, such as design, material and composition, manufacturing process, second-tier supplier, or manufacturing location, are subject to the buyer's prior written approval. All the above-mentioned documentation must be provided for this purpose.

In short, the VW 01155 standard is an internal Volkswagen Group standard that contains technical cleanliness requirements for components and systems used in vehicles. The purpose of this standard is to ensure that parts delivered to or used in VW production meet specific cleanliness levels to prevent damage to sensitive components such as fuel systems, hydraulics, or electronics.

Key aspects of this standard are:

• Technical cleanliness: Focuses on particulate contamination (e.g., metal shavings, fibers, dust). It defines acceptable contamination limits based on the component's function and sensitivity.
• Analysis methods: Outlines how contamination samples will be collected, filtered, and analyzed (usually via filter membrane analysis). Specifies removal methods, such as rinsing or ultrasonic cleaning, depending on part geometry and material.
• Measurement criteria: Sets thresholds for particle size and number. May require analysis by microscopy or automated particle counter.
• Documentation and quality control: Requires suppliers to provide cleanliness reports and implement cleanliness control in their production processes.

This standard ensures the reliability and durability of high-precision automotive components and helps standardize cleaning requirements across suppliers and production lines.

To ensure compliance with the VW 01155 standard, companies must implement and maintain a technically systematic approach throughout the product lifecycle (from design to production, packaging to delivery). Compliance with this standard is often not just about meeting limits, but also about maintaining a controlled and documented process.

Our organization, which has been supporting businesses across all sectors for years through a wide range of testing, measurement, analysis, and evaluation activities, has a strong team of employees who closely follow global developments in science and technology and are constantly improving themselves. In this context, we also provide testing services in accordance with the "VW 01155 Vehicle Parts - Initial Procurement and Approval of Changes" standard.