Defect Investigation Detail

MERCEDES BENZ / W163 / 2000

Components - Details
NHTSA Action Number: PE03058 Vehicale/Equipment Name: MERCEDES BENZ
Vehicale/Equipment Model: W163 Vehicale/Equipment Year: 2000
Component Name: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS Manufacturer's Name: Mercedes-Benz USA, LLC
Date Opened: Dec, 17 2003 Date Closed: Apr, 22 2004
Subject: ENGINE CRANKSHAFT PULLEY FAILURE Summary: The office of defects investigation (odi) opened this preliminary evaluation to investigate allegations of engine crankshaft pulley harmonic balancer failure that could result in loss of power-steering assist.odi has received a total of 546 non-duplicative reports that allege engine crankshaft pulley harmonic balancer failure on all mercedes-benz vehicles using the subject component.the subject component failures are progressive in nature and only a small percentage of the complaints and warrant claims involved a failure that had progressed far enough to effect power steering performance (6 of 55 odi complaints reference increased steering effort).there have been no crashes or injuries related to the alleged defect.a safety-related defect has not been identified at this time and further use of agency resources does not appear to be warranted.accordingly, this investigation is closed.the closing of this investigation does not constitute a finding by nhtsa that a safety-related defect does not exist.the agency will take further action if warranted by the circumstances.see summary report attached for further detail.