u/Any_Introduction3375

Hi, I have a 2017 Renault Talisman 1.6 dCi diesel and I’m having an issue where sometimes it starts perfectly but other times it cranks for a few seconds before starting.If I leave ignition on for a few seconds before starting it usually helps. But if the engine is warm almost all the time it starts badly. I’ve been to the service twice but they couldn’t find the cause. Any idea what it could be?