2008 MERCEDES BENZ GL550 Engine Problems

VEHICLE MALFUNCTIONED FOR THE 5TH TIME SINCE JUNE 2017 WHILE DRIVING ON THE SURFACE STREET. SUV COMPLETELY SHUT DOWN WHILE DRIVING, LOSS OF STEERING AND DASHBOARD ILLUMINATES EVERY WARNING SIGNAL INCLUDING A BEEPING SOUND; GEARS SHUT DOWN AND SUV COMPLETELY STOPS WAS DRIVING. IN LOOKING AT THE HISTORY (I'M THE 3RD OWNER), THE WORK PERFORMED FOR THE DEFECTIVE CAMSHAFT WAS COMPLETED 2 YEARS AFTER THE 2009 MERCEDES BULLETIN AND ANOTHER REPLACEMENT TO THE BALANCE SHAFT AND CAMSHAFT WAS PERFORMED 1 YEAR AFTER THE 2012 BULLETIN. IN ITS REPORT, MERCEDES ISSUED A CAUTION AND STATED, "NEW TIMING CHAIN TENSIONER MUST BE INSTALLED AND ONLY AFTER THE ENGINE HEAD COVERS (VALVE COVERS) ARE INSTALLED/BOTTLED ON. FAILURE TO OBSERVE THAT WILL RESULT IN THE OVER TIGHTENING THE TIMING CHAIN WHICH WILL ULTIMATELY LEAD TO ENGINE HEAD DAMAGE." IN THE CAR FAX REPORT, I SEE AFTER EACH REPAIR, THE OWNER SOLD THE VEHICLE. IN...

STATUS ' 4TH TIME TRYING TO REPAIR THE ENGINE SHUT DOWN ISSUE 'VEHICLE MALFUNCTIONED DURING DRIVING FOUR SEPARATE OCCASIONS WITH KIDS IN THE CAR ' COMPLETE SHUTDOWN WHILE DRIVING, LOSS OF STEERING AND DASHBOARD ILLUMINATES EVERY WARNING SIGNAL (SEE PICTURE BELOW) 'MERCEDES IN DOWNTOWN LOS ANGELES FIXED THE CAR (SEE RECEIPT $4,600 IN REPAIRS) AND SUV CONTINUES TO STOP. SINCE THE 1ST INCIDENT, THE DEALERSHIP HAS ATTEMPTED TO FIX THE ISSUE THREE TIMES AND HAS BEEN IN THE SHOP OVER 60 DAYS THIS YEAR. I CONTACTED THE CEO'S OFFICE AND A REPRESENTATIVE HAS STEPPED IN TO ASSIST WITH THE ISSUE. THEY HAVE BROUGHT IN A SPECIAL ENGINEER TO RESEARCH THE ISSUE BUT THAT STILL DID NOT CORRECT THE ISSUE. ON 10/20/17 ALMOST TWO MONTHS AFTER HAVING MY CAR IN THE SHOP, I PICKED UP THE SUV. ON 11/18/17, THE CAR STOPPED ON ME AGAIN WITH MY SON IN THE BACK...