CLA loading problem: 800-volt system vs. real infrastructure

The Cla loading problem Shows that high-tech promise and everyday experience do not always go together. Mercedes-Benz advertises the new fully electric CLA with 800-volt system, 320 kW charging power and up to 792 km. However, internal documents reveal that the model only loads at a few special columns and is completely out of 400 volt stations. What are the consequences for the driver and how does Mercedes react?

Ambitious 800-volt promise

Mercedes lifts in the internal Information package for sales approval - April 2025 emphasis:

• 325 km range load in 10 minutes

• 320 kW peak performance With optimal technology

• Charging speed only 800-volt columns available

However, 400-volt stations that make up a large part of the fast charging infrastructure nationwide are not even displayed in the navigation. This significantly limits everyday suitability.

Infrastructure reality in Germany

The Federal Network Agency lists as of June 1, 2025:

• 11,919 loading points > 299 kW (exclusively 800 V)

• 14,803 loading points 149–299 kW (mix of 400 V/800 V)

• 11,828 loading points 22–149 kW (purely 400 V)

The CLA is left out at 11,828 stations below 149 kW, and at 149–299 kW it is unclear how many 400 volt columns are affected. The limited selection can become a problem, especially in rural regions.

Technical solution for North America - soon global

Mercedes plans, one from the beginning of 2026 DC/DC converter solution To be installed, which enables 400-volt shop.

• North America: from 2026 as standard for new orders

• Europe: rollout from mid -2026, sometimes only at an additional cost

The respective market decides whether this conversion is free of charge - an official prize is still pending.

Competition analysis with gaps

Internally, Mercedes compares the CLA almost exclusively with the BMW 2 Series, 3 and Audi A5 (burner) while Tesla, Hyundai, Polestar or Byd are not mentioned at all.

• Market leaders such as Model 3 (Tesla) and Ioniq 6 (Hyundai) are ignored

• Opportunities for Chinese providers and new business models are hidden

This close focus on traditional premium competition looks backwards and risked to let Mercedes fall behind in the global EV competition.

Ending
The Cla loading problem makes it clear: Technical top values ​​use little if the infrastructure does not fit. With the announced converter update from 2026, Mercedes improves, but until then buyers have to plan well in Germany and Europe. A wide view of real electromobility competitors would have been necessary to position the CLA as a sustainable model.