Michelin MXV-P and Vredestein Sprint Classic 185 HR14 90H can be found for the power-steered Citroen CX 2400 Estate models available at Tyres.co.uk. Other models of CX may have different fitment specifications, so make sure to look at registration, load index, and speed rating before ordering.
Look on the door panel pressure label (on the driver's side door panel) for information regarding tyre sizes for a Citroen CX. This label will display specifications for cold tyre pressure and other details for the specifications. For aftermarket wheels, check the owner's manual and look at the current tyres for the specifications.
Not all CX models need all four tyres to be replaced, since there are no four-wheel drive models and front-wheel drive models make up the majority of the vehicles. This means they do not need to have the same rolling circumference, although all four tyres should share the same size and construction. Two new tyres should be fitted to the rear axle as a safety precaution.