If your car requires repairs you can take it to any garage to be repaired. You may need to show your registration and insurance papers. Depending on the type of insurance you have, the bill will be sent to the insurer. The police will not be involved unless there is a dispute over blame. You may also be restricted in which garages you can take your car to. It is best to contact your insurance provider and find out what your cover stipulates and how much of the costs they will pay for. Many garages specialise in particular models of car: this usually means they should have the correct parts on hand, which cuts down on service time.