Thank you David. This whole issue seems to me to be a local Citroen dealers' income enhancement scheme. The recommended change frequency in NZ is every 6 years or 60,000 KILOMETRES, yet driving conditions here in NZ are far more 'clement' than those in the UK. We have less polluted air, less heavy traffic conditions and far more temperate temperatures. Nevertheless, all necessary parts are now on the way to me in NZ from Car Parts Direct in the UK, from whom I have received outstanding assistance and service. They will be fitted this year.