NHTSA Complaint #10781331 — 2015 MERCEDES BENZ B-CLASS ELECTRIC

MY B-CLASS ELECTRIC HAD A SUDDEN LOSS OF POWER. HERE'S THE DETAILS: LEFT THE HOUSE IN SAN DIEGO AT 7:00 AM. OUTSIDE TEMPERATURE ABOUT 75+DEGREES. ABOUT 1 MILE FROM THE START, I BRAKED SLIGHTLY TO MAINTAIN SPEED OF ABOUT 25 MPH, COASTED TOWARDS AND UPHILL, PUT MY FOOT ON THE ACCELERATOR TO MAINTAIN SPEED AND THERE WAS NO POWER-JUST COASTING. THERE WAS NO UNUSUAL SOUND AND NO WARNING DISPLAYED. THE CAR APPEARED NORMAL EXCEPT THE GUAGE WAS SHOWING FULL REGENERATIVE BRAKING WHILE THE CAR WAS COASTING. TRANSMISSION WAS IN D-AUTO. POWER STEERING WORKED, AC AND RADIO WERE STILL ON. I BROUGHT IT TO A STOP. PUSHED THE BUTTON TO TURN IT OFF. AT THAT TIME ALL THE LIGHTS ON THE DASH LIT UP. I PUSHED IT AGAIN AND THE CAR WAS BACK TO NORMAL WITH THE INDICATOR SHOWING ZERO BETWEEN REGENERATION AND DISCHARGE. I FINISHED THE DRIVE WITHOUT FURTHER INCIDENT. MILEAGE: 1620 MILES PURCHASED: JUNE 2015 MFG DATE: 4/15 TOOK THE CAR TO THE DEALER TWO HOURS LATER AND TOLD THEM ABOUT THE PROBLEM AND THAT THE FORUM SAYS THERE IS A CODE UPDATE AVAILABLE. WAITED THERE FOR 3 HOURS. THEIR PAPER WORK SAYS: 1639 541011, 540991, 540992. PROGRAMMED POWER TRAIN CONTROL UNIT. PERFORMED SHORT TEST; NO RELEVANT FAULT CODES. CHECKED POWER TRAIN CONTROL UNIT FOR SOFTWARE UPDATES. UPDATE WAS AVAILABLE. PROGRAMMED AND CODED POWER TRAIN CONTROL UNIT. COMPLETE.