View, print and download for free: service interval - CITROEN C3 AIRCROSS 2021 Handbook (in English), 244 Pages, PDF Size: 6.29 MB. Search in CITROEN C3 AIRCROSS 2021 Handbook (in English) online. CarManualsOnline.info is the largest online database of car user manuals. Can anyone clarify the service intervals on my C3 Aircross 130BHP petrol manual? I was led to believe that it was 12 months or 12,000 miles? I bought the vehicle new in 2019 and have so far had 3 annual services, I have only covered 11000 miles, my last full service was in August this year. The first service for the Citroën C3 Aircross (2021) is scheduled based on distance (miles or kilometers) or time (months or days), depending on which occurs first. The service indicator on the dashboard will display the remaining distance or time before the next service. Specific details may vary depending on the vehicle version. 0m8ys.