Parts from the Coolant reservoir cap category for other DS models:
DS DS 3 expansion tank cap
DS DS7 Crossback expansion tank cap
DS DS 4 / DS 4 CROSSBACK expansion tank cap
DS DS 5 Hatchback expansion tank cap
DS DS 3 Crossback (U_) expansion tank cap
DS DS 4 II expansion tank cap
DS DS 9 (X83) expansion tank cap

Engine Cooling System: other spare parts for your DS3 Convertible model : DS3 Convertible Coolant Expansion Tank, DS3 Convertible Coolant Sensor, DS3 Convertible Engine Radiator, DS3 Convertible Engine Thermostat, DS3 Convertible Fan Clutch, DS3 Convertible Oil Cooler, DS3 Convertible Radiator Cap, DS3 Convertible Radiator Fan, DS3 Convertible Radiator Fan Switch, DS3 Convertible Turbo Intercooler, DS3 Convertible Water Pump