Purchase advice Volvo S80 2.5T FlexiFuel

Hello, to the foreword: I’m new here as it is easy to see. I’m currently driving a Seat Leon, but I’d like to switch to Volvo. I found a Volvo S80ll now. Dates: 79000 Km. Equipment MOMENTUM To cost 13250€. The vehicle sounded good, which makes me skeptical now. The dealer wants to do now TÜV and inspection only unfortunately he goes on holiday from tomorrow. That means I should sign a purchase contract in advance and this morning p But if the car gets out of the holiday again on September 14th. Until then my right of recall has expired? What still seems funny to me, the workshop sent me pictures of the service booklet. The service booklet was made in Swedish and up to 57000 km were two inspections and all this in Swedish workshops. The workshop did not even enter the vehicle number, but only mileage, stamps and only at the second inspection. a date was entered. From 2014 a German Volvo car dealership made an inspection and also completed everything properly. In the vehicle letter two owners are registered, once the German car dealership and a private owner. The workshop where I buy the car has no plan. I am at the moment totally confused. On the one hand, it is a good car for little money. On the other hand, the vehicle history makes me skeptical. Can you give me advice? Thank you in advance.