How do you change a cambelt on a Renault espace 2.2 dci?

To change the cambelt on a Renault Espace 2.2 dCi, first ensure the engine is cool and disconnect the battery. Remove the plastic covers and any components obstructing access to the cambelt, such as the serpentine belt and pulleys. Align the timing marks on the crankshaft and camshaft, then loosen the tensioner and remove the old cambelt. Install the new belt, ensuring it is correctly tensioned, and reassemble all components, finally checking that timing marks remain aligned before reconnecting the battery and starting the engine.