A/C 2008 ml 350

Mercedes » M-Class » 2006-2011
Problem Description

Three weeks ago had 2 pulley assemblies replaced and belt one week later needed adjustment. 4 days ago the pulley assembly on A/C goes bad. Should this Pulley also been checked or replaced at the time the others were serviced?Dealership wants another 2K. This is not my area of expertise.