Using the chassis number-search extends the previous search in which you could search for tire size or rim size.
The chassis number of your vehicle can be found in or on the vehicle and in the vehicle registration document under point E (for old vehicle registration documents, point 4)
If you enter your chassis number here and click on "Search", you will receive wheel sets, complete wheels or rims that match your vehicle.
In addition, you can combine the two searches by first entering your chassis number and clicking on the upper blue "Search" field. Then you can enter search parameters such as tire size or rim size and click on the lower blue field "Show offers".