In spring 2005 the Ares 500 and 600 series were updated with new model numbers ending in “7.” The Deere engines remained essentially unchanged. The gearbox was now a Gima 24-forward/24-reverse unit, featuring a 6-speed creeper and, as an option, gear‐change automation. From 2006 onward the two largest models were also available with a 50 km/h top speed. The hydraulic system was in open‐center design as standard, with flow rates of 60 or 95 l/min; as an option the separate lift-pump output and the external hydraulics could be combined for 100 l/min. A closed‐center system with 110 l/min was also offered. Roughly speaking, the transmission compared to the MF 6400 series and the hydraulics to the MF 5400 series. The PTO speeds were standard 540/1,000 rpm, but in Germany, for example, Eco PTO speeds were included as standard equipment. Comfort and Premium models came standard with cab suspension. The wheelbase was longer than before, and the cab noise level was rated at 73 dB. Replacement Arion models were introduced for 2008, but the two smallest Ares tractors continued alongside them for another couple of years.

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