For the 2018 2.0 BlueHDi 150 on 16-inch wheels, options at Tyres.co.uk on the Citroen SpaceTourer include Bridgestone Duravis Van and Goodyear EfficientGrip Cargo. They are 215/65 R16C 109/107T, and exceed the factory load index of 106/104T. Please verify registration and driver's-door sticker prior to buying.
To check the tyre size on a Citroen SpaceTourer, access the label on the door-pillar of the driver's side. This requires the door to be open. The label shows the approved requirements for the tyres, load and speed indices, and the cold inflation pressures for both loaded and unloaded, as well as the inflation pressure for the spare wheel.
When replacing tyres on a Citroen SpaceTourer, it is rare to have to replace all four tyres. Usually it is adequate to replace two matching tyres on the same axle. Fit new tyres to the rear axle under the tyre safety guidance. Standard versions of the SpaceTourer are front wheel drive, however a Dangel 4x4 SpaceTourer needs all four tyres to be of the same brand, type and wear level.