The Carterstopring for Citroën AX, BX, and C15 is an essential component for sealing the oil sump. This durable ring prevents oil leakage, crucial for maintaining engine performance. Specifically designed for the AX, BX, and C15 models, it fits perfectly, minimizing the risk of oil leaks. It is easy to install and made from high-quality materials to ensure longevity. Replacement may be required during routine maintenance or if signs of wear and leakage appear.