Comparison of the average abundance radial profiles between clusters (>1.7 keV) and groups/ellipticals (<1.7 keV). The error bars contain the statistical uncertainties and MOS-pn uncertainties (Sect. 4.3) except for the O abundance profiles, which are only measured with MOS. The corresponding shaded areas show the scatter of the measurements. The two dashed lines indicate the upper and lower error bars of the corresponding profiles over the full sample (Fig. 3), without scatter for clarity.