CITROEN C5 RC4HXE II HDi 2.2L 4HX (DW12TED4) DOHC 16v Turbo Diesel Direct Inj. 4cyl 98kW Hatchback FWD [02/05 - 08/08]. XTRA COOL GOLD is suitable for use in all vehicles not requiring anti-freeze protection, both petrol and diesel.