5 years of maintenance

Hello, I’ve been thinking that with my annual drive >20.ooo km it makes sense not to use the free maintenance for inspections 1, 2, 3, 4 & 5 of my ix20, but rather to “finance” inspections 2, 4, 6, …. from the package. This in particular because the “hungerade” inspection dates are only small inspections with oil changes. These could then be carried out by a non-branded workshop. Does anyone know if this is acceptable or if the guarantee is maintained with such a solution? Thank you and best regards TJ.