I have a second hand rear facing maxi cosi car seat and need to find out how to install this properly? Please send me instructions or installation guide etc.....

Hi Vanessa - We cannot recommend you use a 2nd hand carseat for exactly this reason. A carseat fitted with a 3 point seatbelt requires a physical fitting from a trained member of staff prior to purchase to ensure suitability, and to demonstrate to you how to correctly install it in your car to ensure your child is safe. Please attend an authorised retailer and ask for a carseat fitting from a trained member of staff to establish the most suitable carseat for you and your vehicle and to ensure you know how to fit it correctly.