If the vehicle has been serviced in accordance with the manufacturer's guidance, we would expect that the air filter and pollen filter will have been replaced at the first major service, and possible spark plugs, but it also depends if the vehicle was on a fixed or variable service schedule when new. You should be able to view the vehicle's service history, but if the independent dealer cannot supply this you may need to contact a Skoda dealer to view the digital service record. You can also view more about the recommended service points on the Skoda website here - www.skoda.co.uk/owners/servicing-maintenance-fixed...e