Is my deductible affected if a damage occurs during the rental?
Yes, your deductible will be affected if a damage occurs during the rental. For example, if you have a damage worth €2000 and a deductible of € 750, you need to pay the first € 750 and the insurance will cover the remaining € 1250. The insurance company will pay the full € 2000 to repair the damage.
If the damage amount is lower than the deductible, you as a renter effectively pay the full damage. For example, if you have a damage worth € 500 and a deductible of € 750, then the renter needs to pay € 500 and the insurance pays nothing. The insurance will use the € 500 to repair the damage.