Motor vehicle notification technical change Unfortunately this specification of service has not yet been completely translated.

Certain technical changes must be reviewed immediately by the Technical Testing Centre or an officially recognised monitoring organisation (DEKRA, GTÜ, KÜS, TÜV):

  • Change of vehicle type

  • Change of displacement or power

  • Increase in the maximum speed determined by the type

  • Reducing the maximum speed determined by the type if it is relevant to driving licences or if tyres of lower speed classes are to be used

  • Modification of permissible axle loads, total weight, payload, saddle, suspension or towing load

  • Increase in vehicle dimensions, excluding passenger cars and motorcycles

  • Change in the number of seats, loungers or standing places for buses and coaches

  • Changes in exhaust or noise levels, provided that they affect vehicle tax or traffic bans

These technical modifications must be entered in the vehicle documents by the competent authority.

  • in case of technical change
    • Certificate of Registration Part II

    • Approval certificate Part I

    • Expert report or operating licence of the part manufacturer (e.g. TÜV, DEKRA, KÜS)

    • Acceptance confirmation of an approved test organisation (e.g. TÜV, DEKRA, GTÜ, KÜS, GTS)

    • Evidence of the main examination (HU)

    • in case of change of the vehicle type additionally new insurance confirmation

  • in case of change in the pollutant class
    • Certificate of Registration Part II

    • Approval certificate Part I

    • Installation certificate of the workshop

    • Operating licence for the built-in exhaust gas cleaning system

  • when retrofitting the catalyst (KAT)
    • Certificate of Registration Part II

    • Approval certificate Part I

    • Installation certificate for the KAT and the General Operating Permit (ABE) of the KAT

Depending on the offer of the responsible body, a display form is available for download.


  • Vehicle is already registered
  • technical changes have been made
    • e.g. by attaching a towbar, reducing the power of the motorcycle or similar
    • A technical change is also made if the vehicle is to be re-coded because, since the date of the first registration, it meets a higher emission standard in accordance with a manufacturer's certificate to be submitted than in the current registration documents. registered.
  • Demonstration of the vehicle with an officially recognised expert who confirms the proper entry, assembly or removal by means of an expert opinion


Before entering or converting, ask an officially recognized expert for motor vehicle traffic or a test engineer of a monitoring organisation whether the operating licence is affected or whether the change is even eligible for approval.

Related Links

  • § 13 Fahrzeug-Zulassungsverordnung (FZV)

The vehicle was presented to a technical expert (e.g. TÜV, DEKRA, GTÜ, KÜS, SAVAG) and the change was assessed. If the change does not have to be entered in the papers, this is noted on the TÜV report.

The application must be submitted to the competent body in person or by a person authorised in writing.

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