Item Type: Rear SAM Signal Acquisition ModuleMaterial: ABS+aluminumOE: 1649005401, A1649005401Fitment:Replacement for Benz GL320 164825 164822 Not for vehicles with (Code 848) 2007-2009 Replacement for Benz GL350 164.825 Not for vehicles with (Code 848) 2010-2012 Replacement for Benz GL450 164.871 Not for vehicles with (code 848) 2007-2012 Replacement for Benz GL550 164886 Not for vehicles with (Code 848) 2008-2012 Replacement for Benz ML320 164.125 164.122 Not for vehicles with (code 848) 2007-2009 Replacement for Benz ML350 164.186 from VIN A053008 from 05.10.2005; not for vehicles with (code 848) 2006-2006 Replacement for Benz ML350 164186 164125 Not for vehicles with (Code 848) 2007-2010 Replacement for Benz ML450 164.195 Not for vehicles with (code 848) 2010-2011 Replacement for Benz ML550 164.172 Not for vehicles with (Code 848) 2008-2011 Replacement for Benz ML63 AMG 164.177 from VIN A694290 from 01/11/2011 2010-2011 Replacement for Benz R350 251.157 251.125 251.165 251.124 251.156 From chassis number A125365 From 11 January 2011 2010-2012 1Fitment: Rear signal acquisition module is professionally manufactured, replacement for Benz GL ML R Class ML350 GL450 ML63 AMG. 2OE Number: 1649005401, A1649005401 are the reference part numbers. Please double check the part number of your item to ensure perfect fit. 3Function: SAM control module is used to collect most of the signals on the vehicle and help to maintain the normal operation of the car. 4Sturdy Material: Signal acquisition module is made of ABS housing and aluminum contacts for long durability and good signal transmission. 5Ideal Replacement: Rear SAM is designed to replace the damaged rear SAM control module of the original car without modification.1 xRearSAMSignalAcquisitionModule