Pressure and Leak Testing in the Automotive Industry

Check safely. Save time. Optimize processes.

Pressure and leak tests are a routine part of automotive development and production. Whether it’s hot testing on engines, cooling system checks, or battery testing in electric vehicles – any leak can have serious consequences. Test engineers, maintenance technicians, and developers face the challenge of creating leak-tight connections quickly and reliably – often under significant time pressure and in confined installation spaces.

Greater efficiency with WEH® Quick Connectors

WEH® Test Connectors create leak-tight connections in seconds – completely without the need for screwing. For threads, tubes, hose connections, and special fittings, we offer standardized or customized solutions that make test processes safer, faster, and more efficient.

Connect in seconds – no screwing required

Pressure-tight connections by simply pushing on – saving time and protecting joints.

For automated processes

Can be controlled via hand lever, valve button or external systems – perfect for series production.

Safe testing processes under high pressure

Designed for a wide range of pressure levels – from low pressure to several hundred bar.

Customizable to your component

Whether it’s a special tube end, complex geometry, or limited installation space – we deliver tailored solutions.

Automatable and durable

WEH® Connectors are designed for high cycle rates and continuous use – perfect for series testing.

These components are tested by professionals using WEH

From drivetrain to cooling – our quick connectors are used in nearly every area of the vehicle. The following components are among the most frequently tested in development, production, and service – demonstrating the versatility of WEH® Solutions.
Brake systems
Fuel lines
Gears
Air conditioning system
Engine
Steering systems
Additional components
  • Fuel injection pumps
  • Brake calipers
  • Tanks
  • Oil coolers
  • Battery housings
  • Electric drive units
  • Aluminum box
  • Cooling circuits / coolant lines
  • Electric drive

Looking to optimize your testing processes?

Whether a standard solution or a customized adaptation – our experts are happy to advise you on the right WEH® Quick Connectors for your application.

Discover & Download

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Operating Instructions

All information on the safe commissioning and use of our products – including safety instructions and step-by-step instructions.

Certificates

Our products are tested and certified according to international standards. Here you will find all relevant quality and conformity certificates.

Why WEH?

Quality You Can Rely On

Our products are manufactured to the highest standards. At WEH, quality is no coincidence – it’s our standard, ensured by 100% final inspection and certified processes.

Service You Can Rely On

By choosing a WEH® product, you’ve chosen long-lasting quality. And our service ensures it stays that way. Whether maintenance, inspection, repair, or original spare parts – our experienced team is committed to maximum safety, efficiency, and preserving the value of your equipment.

Fast and Helpful Support

Questions about application, technology, or spare parts? Our technical support team is here for you – direct, competent, and without detours. Personally available and globally reliable.