AU (exhaust emissions test)

Overview

Use this when your vehicle needs an emissions test (AU), usually combined with HU. Diesel vehicles face extra checks, especially for low-emission zones.

Timing to be aware of

Recurring

Reference only — your timing may differ. Confirm with the relevant office.

What you'll need

• Fahrzeugschein
• vehicle

Related events

• Kfz-Zulassung (vehicle registration)
  Critical
  When triggered
• Kfz-Versicherung (car insurance) setup
  Critical
  When triggered
• Fahrverbot (driving ban) response
  Critical
  When triggered
• Führerschein-Umschreibung (foreign license conversion)
  High
  Deadline applies
• Kfz-Abmeldung (vehicle deregistration)
  High
  When triggered