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How often does a car need a periodic inspection (syn) in Denmark?

Four years, then every second year.

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Short answer

A passenger car for up to 9 people and a van up to 3,500 kg need their first periodic inspection 4 years after first registration, and then every 2 years. Færdselsstyrelsen sends a notice 8 weeks before the deadline to the registered user or owner. The inspection checks safety items such as steering, brakes, tyres, lights and suspension, and also smoke, carbon monoxide and noise. Missing the deadline breaks the law and can lead to a fine notice (bødeforelæg), and the deadline cannot be extended once it has passed.

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Why

  1. The first inspection comes after 4 years.
  2. After that the car is inspected every 2 years.
  3. A missed deadline can mean a fine.

Details

If the result is "kan godkendes efter omsyn", the car must be back for a re-inspection within 60 calendar days, counting the inspection day as day 1.

Tip

Check your deadline in Motorregistret under Vis køretøj and 3. Syn, and book early, as the re-inspection deadline does not move the legal deadline.

What may differ

Lorries, larger buses and heavy trailers have yearly inspection, and veteran vehicles first at 35 years and then every 8 years.

Common misconception

Many think you can simply ask for more time if you miss the syn deadline.

What actually happens

Once the deadline has passed it cannot be extended; extensions are only possible in special cases such as proven theft.

People also ask

  • What is checked at a Danish car inspection?
  • What does omsyn mean in Denmark?
  • Does an imported car need syn in Denmark?

Sources

This answer is for reference only. Traffic rules, fines and fees can change, so check the Danish authorities before you drive.

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