How do you change a timing belt on Citroen C5 V6?

To change the timing belt on a Citroen C5 V6, first ensure the engine is cool and disconnect the battery. Remove the necessary components, including the engine covers and any belts obstructing access to the timing belt. Align the timing marks on the crankshaft and camshaft, then loosen and remove the old timing belt. Install the new belt, ensuring proper tension and alignment, then reassemble all components and reconnect the battery. Always refer to the vehicle's service manual for specific instructions and torque specifications.