The factory timing chain is 7 millimetres wide, and that is too little for this engine: the chain wears and stretches prematurely. The repair replaces it with an 8 millimetre chain. In a bad case the chain skips teeth or snaps, and then the valves and the cylinder head are seriously damaged. The early sign is a metallic knocking or rattling noise at idle when cold, together with power that slowly fades. In the fault memory, codes pointing to the relative position of the crankshaft and the camshaft appear: P0011, P0012, P0016, P0017 and P0018. The wear starts from 70,000 km. The maker issued a recall and a retroactive goodwill programme for it. The range is the engines built between October 2017 and January 2023, across five brands: Opel, Citroen, Peugeot, DS and Fiat. In Germany 141,700 cars were called in, and the workshops judge the condition of the chain by the noise of the engine. The warranty was extended to 10 years or 240,000 km, provided the servicing was done to the factory specification by a specialist workshop. Anyone who paid for the chain replacement themselves between January 2023 and June 2025 can claim the cost back, material and labour together. For used cars there is also a separate certificate confirming that the benefit passes to the next owner. The chain replacement on its own is between 1,200 and 2,000 euro. The specified oil is not a formality here: the engines covered by the recall need the lubricant to the FPW9.55535/03 specification, because its anti-wear additives slow the wear of the chain.