The following may not be invoked against victims or their dependants:
1° The excess provided for in Article L. 121-1 ;
2° The reduction in compensation applicable in accordance with Article L. 113-9.
In the two cases mentioned above, the insurer pays the compensation on behalf of the liable insured. It may bring an action against the latter for reimbursement of all sums which it has thus paid or set aside on his behalf.