First remove the tire and check the extent of the damage and whether it can be repaired according to the following criteria according to §36 StVZO (BMV/StVZO 13/36):
1. The tire must not be less than 9 years
2. The maximum puncture angle must not exceed 40°.
3. Up to TR-PKW, only a maximum of 3 repairs per tire may be carried out at a distance of at least 30° from each other.
4. Up to HR passenger cars, a maximum of 2 repairs per tire may be carried out at a distance of at least 30° from each other.
5. In the case of motorcycle tires, a maximum of 1 repair per tire may be carried out.
6. Always pre-drill light truck, truck, AS, EM tires etc. with a 5mm drill bit.