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R230DualBatteryR230DualBatteryOn-boardElectricalSystemOn-boardElectricalSystem507HODualBattery(ACB)11-28-021Thesetechnicaltrainingmaterialsarecurrentasofthedatenotedonthematerials,andmayberevisedorupdatedwithoutnotice.Alwayscheckforrevisedorupdatedinformation.Tohelpavoidpersonalinjurytoyouorothers,andtoavoiddamagetothevehicleonwhichyouareworking,youmustalwaysrefertothelatestMercedes-BenzTechnicalPublicationandfollowallpertinentinstructionswhentesting,diagnosingormakingrepair.IllustrationsanddescriptionsinthistrainingreferencearebasedonpreliminaryinformationandmaynotcorrespondtothefinalUSversionvehicles.RefertotheofficialintroductionmanualandWISwhenavailable.CopyrightMercedes-BenzUSA,LLC,2002Reproductionbyanymeansorbyanyinformationstorageandretrievalsystemortranslationinwholeorpartisnotperm