Accident repair, was everything made worse?

Hi, a month ago I was with my V40 at the dealer where I had bought it in the workshop. So I had to check the starter because he often caused problems. After the check the workshop manager drove his private car backwards into my parked Volvo. Damage: – right xenon headlights pressed in and glass broken – bonnet pressed in – radiator grill broken – fender right dented – engine cooler pressed in back – apron broken – This small discwisc This workshop belongs to a friend of my ex who also uses the car. He also wanted to repair the damage, the insurance from the cause of the accident pays yes… Now after almost 3 weeks the car is practically finished again, but there is a problem and he does not want to push the car out again: 1. D he new right xenon headlights is a different one than before. I had there some with black caps around the pears, the new one is a quite normal 2nd bonnet and fenders were fetched by him and laked, but colour differences can be seen… 3. The engine cooler is “only” a reworked, so no new one, supposedly no longer exists 4. He has dismantled both headlight wipers, allegedly gets the broken one no longer repaired and thinks it would be better to take them away anyway, so I’m also insecure because of the value of the car… He just took it off… 5. and worst: After a few minutes of running the engine comes a strange noise from the direction of the timing belts. Is such a scratching which then repeats itself every second…?! Because of this problem he doesn’t want to give us the car out because that still has to be done, whatever the problem is. Costed however extra, only what is that and how can be so if there is no damage from rher was and he didn’t move the car? I uploaded some photos for that, what happened there… MfG