Coetzee played the Middle East swing well recording top fives in Abu Dhabi and Qatar before missing the Dubai event.
It would seem the rest has done him good winning by two over England's Tyrrell Hatton, South Korean Jin Jeong and local golfer Justin Walters who is playing his second season on the European Tour.
Coetzee recorded a bogey free and stress free final round of 66 to earn Ã¢Â‚Â¬206,000 and move inside the top 60 in world ranking.
The tournament doubled as a qualifying event for the Open Championship at Hoylake later this year and the three golfers not otherwise exempt and who finished inside the top ten this week were Coetzee, Walters and Jeong. Walters and Jeong secured their place at the Open ahead of Hatton as a result of their higher world ranking.
For Jeong who for much of his amateur career was based in Melbourne where he played Pennant golf, it will be his second start at the Open Championship having first played in 2010 after winning the British Amateur Championship.
Jeong is now a full member of the European Tour after winning the Perth International last October.
The leading Australian in the event and the only one to make the cut was South Australian Wade Ormsby who finished 31st.