Wiring problems of the 2011 Mercedes Benz ML350

Takata recall Mercedes Benz notified by usps safety recall 03/16. No further correspondence or other action/s to indicate rectify of safety recall since. Mercedes houston north dealership visit 10/29/16 at which I purchased refuses vehicle return in light of indicated airbag recall, stating I cannot simply return the vehicle. Sales rep indicates such vehicles are taken as trade-in and/or sold to competing dealers like carmax which pays higher for unwanted/unsafe vehicles, but offers an assurance to assuage my safety concern that mercedes are more structurally sound than other manufacturers, namely Honda in which drivers/passengers died from takata airbag deployments. Rep further states airbag replacement unlikely since takata is behind in manufacturing due to tsnumai;processing new work as priority to safety recall/reworks. Unable to sell/transfer vehicle due to recall/illegality; would not anyway due to safety hazard which not only endangers, but kills, others. 1-wk after buy,left&right frnt prkng lights malfunction. Mercedes replaced/repaired fuse upon new wiringharness install under ext svc plan. Same left&right frnt prkg indicator malfunction w/in 45days after;replaced oem-bulbs blew. Left headlight replaced-oem blew. Aug/sept 2014 45k-mile reqd maint, dealer svc advisor said head&prkg light bulbs wrong type,restate fixed wiringharness still root. Head&prkg lights fixed w/out further wiringharness mention. New carbattery install Dec/Jan 2015 60k-mile reqd maint report to dealer svc advisor electronickey fail to unlock doors&engage ignition despite new batteries. All 2015 and continuing, left&right front bulbs,left head&taillight outages, spontaneous espfaults on dash malfunction;ignition delayed-start w/out dash warning in park/rear/neutral/drive position or at start/shutdown. Purchased 04/17/14 cert preown w/ ext svc plan ~36kmiles 10/29/16 ~103kmiles esp expired 100kmiles.