Starting with 2005, Europe was ready to switch to the Euro4 Emission Standards, and Citroen didn't want to wait and improved the C5 range, after just a few years since it launched it, and applied the transformations on the station wagon version as well.
Citroen replaced the Xantia and the XM lineups with the C5 in 2001 and, by 20004, it had already gained a presence on the market with its two bodywork versions: the sedan and the station wagon named "Estate." While the former was more of a liftback, the latter came with a traditional two-box wagon shape.
Starting with the first facelifted version, the C5 Estate featured a new styling, with boomerang-shaped headlights, with the outer sides swept back towards the fenders. The grille was also smaller, sporting a chromed slat on the upper side that comprised a part of the Citroen badge, the so-called "double-chevron." At the back, the carmaker kept the same slim and tall taillights that flanked the tailgate.
The revised interior featured a new dashboard, with upgraded materials and a navigation system offered as an option. Depending on the trim level, the C5 also got a few satin-silver plastic decorations around the gear selector and on the center stack. At the back, the bench seat was upgraded with an option for a fold-down, wide armrest with a storage compartment inside.
But the biggest changes were under the hood. For the gasoline-powered versions, the C5 received new catalytic converters and ECU updates so it could fit into the Euro4 emission standards, even though that meant losing some power. The diesel versions, on the other hand, were upgraded. All engines were developed together with Ford, and starting with 2005, the car featured a 170 hp powerplant, 2.2-liter unit, shared with the Land Rover Freelander.