Germany has responded to European Commission (EC) demands it comply with its air-conditioning refrigerant directive, although the details of its position have not yet been made public.

The EC has made it known it could launch “appropriate infringement measures” against Germany if Berlin persists in backing Mercedes-Benz use of its r134a coolant as opposed to the Brussels-recommended r1234yf alternative.

Discover B2B Marketing That Performs

Combine business intelligence and editorial excellence to reach engaged professionals across 36 leading media platforms.

Find out more

It is not yet clear whether Germany’s response – believed to have come in the form of a letter from the country’s Transport Minister Peter Ramsauer – is enough to lift the threat of EC action with Brussels now having up to ten weeks to reply with its own position.

“The explanation from German authorities has arrived,” an EC official told just-auto from Brussels. “The Commission will now assess the reply and decide on an appropriate reaction.
 
“Under the pilot procedure rules the deadline for the Commission to respond is in ten weeks time.”
 
The German Transport Ministry is giving Mercedes its support concerning the bitter refrigerant battle that has seen the automaker’s A, B, CLA and SL models banned from certification in France.

Paris is endorsing the Commission’s view the r134a coolant is far more polluting than r1234yf, but Mercedes insists the latter can be highly flammable in certain conditions.

The German Transport Ministry was not immediately available for comment.

Just Auto Excellence Awards - Nominations Closed

Nominations are now closed for the Just Auto Technology Excellence Awards. A big thanks to all the organisations that entered – your response has been outstanding, showcasing exceptional innovation, leadership, and impact.

Excellence in Action
Continental has secured the Window Displays Innovation Award in the 2025 Just Auto Excellence Awards for its Window Projection solution, transforming side windows into dynamic, data-rich canvases. Discover how this compact projection technology and intelligent software are reshaping in-car UX and opening fresh revenue streams for OEMs and mobility providers.

Discover the Impact