 The Class 357 units are all normally maintained by Bombardier service technicians at c2c's East Ham Depot, which won the Golden Spanner Award for Maintenance Team of the Year (Rolling Stock) at the Annual National Rail Awards in 2005 and 2006 and their Shoeburyness depot.In December 2005, c2c's East Ham depot began putting advertising vinyl wraps on some carriages, starting with branding the MSO intermediate trailer car 74716 in set 357216 as a 'Cough-Free Zone' by the cough syrup makers Benylin for the winter.In June 2009, c2c and Bombardier began a repainting programme on the Class 357 units beginning with 357203.