Multi-band image of A 2142. The optical information from the combined red and blue plates of DSS–2 is shown in purple, the X-ray emission from XMM-Newton is shown in green, radio contours at 608 MHz are shown in cyan (same image and contour levels as in Figs. 2 and 3), the emission from the radio halo at 1.38 GHz is shown as white contours (same image as in the right panel of Fig. 6, contour levels drawn at 0.4, 0.8, 1.6 mJy/b). The three cold fronts are indicated by the black and white arrows. The innermost cold front is coincident with the highest radio contour of the radio halo and the northernmost cold front is coincident with the lowest radio contours. For completeness, the location of the BCGs, of Group G and the X-ray tail discussed in Eckert et al. (2014) are also shown.