Top panel: XMM-Newton pn (upper black crosses), and MOS1 and MOS2 (lower green and red crosses) spectra of HD 45166 where a suitable number of instrumental channels are binned, but not more than 300, to achieve at least a 3σ detection. Bottom panel: XMM-Newton unbinned EPIC pn spectra corrected for the instrument response (black crosses) of HD 45166, with error bars corresponding to 1σ. The best-fit model is a combination of three thermal VAPEC models.