
The “ VW TL 934 Wiper Systems - Functional and Material Requirements” standard, developed by the Volkswagen automotive company , describes the requirements and test methods applied to the following elements of a wiper system:

The processes and systems specified in this standard must be used for numerical and other simulations. The full functional capacity of the entire system of components must be ensured in all vehicle operating conditions, over the entire temperature range from -40°C to +90°C, and under all ambient conditions. All parameters must be within specification after testing. Sections marked with a documentation bar are subject to mandatory documentation. Documentation must be retained for 15 years.
The following basic requirements must be met:
The part must be in perfect condition after testing. The appearance and tactile characteristics of the parts must comply with the component performance specification and Volkswagen quality standards. All general test requirements form the basis of the functional requirements. Among all tests, Volkswagen is responsible for the road tests and endurance road tests, as well as for verifying the functional target specifications. The supplier is responsible for performing all other tests defined in the performance specification and test catalogs.
Project-based deviations from the testing requirement (e.g. country-specific requirements) must be defined in an additional testing catalogue together with the buyer.
Corrosion testing is used to monitor and evaluate the corrosion characteristics of components or corrosion protection solutions when subjected to static loads. This test simulates component loading that might occur in winter road conditions, such as salt air or water containing deicing salts.
The tests required for the windshield wiper system according to the VW 80000 standard are listed in the table titled "Testing according to VW 80000." These requirements apply to the entire operating voltage and temperature range. The functions and test conditions required for each test must be continuously monitored and documented. Furthermore, the test order must be adhered to.
The VW TL 934 standard describes electrical requirements and tests on the following basis:
In this standard, mechanical requirements and tests are described on the following basis:
In this standard, climatic requirements and tests are described on the following basis:
In this standard, chemical requirements and tests are described on the following basis:
In this standard, service life tests are described on the following basis:
The VW TL 934 standard is a Volkswagen technical standard that outlines the functional and material requirements for wiper systems used in vehicles. This standard ensures that components such as wiper arms, blades, motors, and linkages meet stringent performance, durability, and environmental criteria.
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 to businesses in accordance with the "VW TL 934 Wiper Systems - Functional and Material Requirements" standard.
