VERY IMPORTANT!!! I just received a notice from NHTSA dated February 12, 2021, that MB would be issuing a recall effective February 22, 2021, to replace the rear speed sensors on MB 3500 Sprinter vehicles with a "more robust" sensor. You can find recall information on NHTSA website under Recall No. 21V042. Thanks to all the Sprinter owners like me that filed complaints with NHTSA on this critical issue to get them to pursue issue with MB and hopefully get the issue resolved. Safe travels.