Germany fines drivers for idling engine to run car air‑conditioning while stationary

German traffic regulations prohibit leaving a vehicle’s engine running while the car is stationary unless there is a justified reason. The rule targets situations where drivers keep the engine on solely to operate the air‑conditioning or heating system, which is considered unnecessary emission of exhaust gases and noise.

Violations can result in fines ranging from €80 to €444, regardless of where the vehicle is parked. The practice is common in summer for cooling the cabin and in winter for warming it before departure, but authorities treat it as a breach of the anti‑idling law.

The enforcement aims to reduce avoidable emissions and improve air quality, treating the act as a traffic offence rather than a mere inconvenience.