hi david e
im asuming your car is a 203 chassis.
the oil filter is under the engine cover 6 torx screws, or pull off type.
as your looking at engine from front, to your right at front top between head and egr diaphram is a black round plastick cover, the paper filter is in there,
you will need the remouval tool £8 dealer, less on ebay, good luck,..