The 65 remaining trains of the 420 series were still in operation until November 2014. Since the conversion of the S7 and some of the S1 (which had previously been performed by 420s since the autumn of 2013) to the new 430 series in May 2014 made numerous 420s redundant, the phasing out progressed sharply. Another reason for this was the expiry of the examination period of many vehicles, while at the same time main examinations were no longer worthwhile due to the manageable remaining service life.