squealing noise when start engine? What causes that. on 1999 Mercedes-Benz C280

When. we start out mercedes the engine makes a loud squealing noise that may continue when we drive it for a period of time. We have replaced the anternator, belt and idler pump

by in Hanover, MA on February 01, 2011
2 answers
ANSWER by on February 01, 2011
most likely the serpentine belt is slipping because the belt tensioner is failing
ANSWER by on February 28, 2011
may be and over chargibng or over worked alternator,have the battery tested and charging system checked at a benz shop,also make sure the belt and tensioner were replaced with german quality parts not the cheap aftermarket chinees parts

Related Content