• If you have an accident involving a rental car, proceed exactly as provided in the guidelines, specified in the rental contract.
• Notify the rental company immediately of the emergency.
• In the case of serious accidents, don’t take any action or consider the recommendations of third parties prior to the arrival of the police.
• If damages have been caused to the vehicle, do not allow anybody to commence repairs before you have concluded an agreement with the rental company.

All the information is from the Estonian Consumer advice portal: http://www.consumer.ee/en

Don’t forget to read about other useful tips when renting a car.

• Car rent in Europe
• Booking a rental car over the Internet
• Be extra careful when entering into the contract!
• What may affect the rental charges?
• Upon collecting the rental car
• What should you consider when returning the vehicle?