2015 Mercedes-Benz B-Class Electric Problems

MERCEDES DEALER NOTES : 07/19/2022 CLIENT STATES STEERING IS STIFF. STARTED ABOUT 1 TO 2 MONTHS AGO AND WOULD SHOW UP ONCE AND AWHILE. WHEN IT WOULD ACT UP WOULD NOT DRIVE IT AND IT WOULD LOCK THE STEERING . THIS HAPPENED MULTIPLE TIMES, WITH ACCIDENT HAZARD. WE DID THE BELOW WORK. ELECTRIC POWER STEERING RACK FAULTY REPLACE COMPLETE ELECTRIC POWER STEERING RACK. WHICH COST US OVER $3000. NOW WE HAVE SIMILIAR PROBLEM STEERING IS TIGHT AGAIN, MAKING FLAPPING NOISE, DEALER RECOMMENDED REPLACEMENT OF POWER STEERING RACK, GEAR BOX 07/02/24 , MERCEDES HAS RECALL ON MANY MODELS DURING YEAR 2015-2018 FOR electric power steering systems, Mercedes says the cars use electric power steering systems that May have soldered contacts that weren't soldered correctly inside the control units. The bad contacts can cause a sudden loss of power steering while driving, causing serious problems if driving around a curve or at slow speeds.

Occasionally the car will lurch forward when coming to a stop. As you come to a stop it tries to propel the car forward as you are breaking and coming to a stop. Happens rarely but when it does it's a big safety concern.

The electric motor was leaking coolant and needs to be replaced. I have read countless accounts that this is a known issue with this car.

The main electric drive motor will start leaking coolant which then damages the motor and even electronics. Well known issue and makes the vehicle unsafe and isn't a matter of "if" but "when" the seals will go bad and this is on our car that has less than 40k miles on the odometer.

Failure of seals and or bearings in the electric motor causing coolant to leak into the electric motor, creating an internal electrical fault, seizing electric motor.

The main electric drive motor will start leaking coolant which then damages the motor and even electronics. Well known issue and makes the vehicle unsafe and isn't a matter of "if" but "when" the seals will go bad and this is on our car that has less than 40k miles on the odometer.

DRIVING ON THE FREEWAY AT 65MPH, EXPERIENCED COMPLETE AND SUDDEN LOSS OF DRIVE/POWER. CAR CHARGE WAS AROUND 1/2 FULL. HAD TO PULL TO THE SHOULDER AS THE CAR ROLLED TO A COMPLETE STOP. FINDING LOTS OF OTHER REPORTS ONLINE, DEALER HAS BEEN UNABLE TO DETERMINE THE ROOT CAUSE AFTER 1 WEEK. DEALER REPORTED OTHER SIMILAR INCIDENTS FROM OTHER DRIVERS.

UNEXPECTED LOSS OF POWER - WE HAVE EXPERIENCED TOTAL LOSS OF ACCELERATION AND THROTTLE POWER RESULTING IN THE VEHICLE ROLLING/DRIFTING TO A STOP. IN ORDER TO REGAIN THROTTLE POWER, THE CAR MUST BE PLACED IN PARK AND THE ENGINE START BUTTON DEPRESSED. THIS LOSS OF POWER HAS OCCURRED TO ME AT LEAST 3 TIMES AT LOW SPEEDS (10-25 MPH), ONCE AT 45 MPH AND ONCE AT 65 MPH WHILE DRIVING IN THE FAR LEFT LANE OF 73 SOUTH TOLL ROAD, CALIFORNIA. ALSO IMPORTANT IS THAT AT THE TIME FORWARD POWER IS LOST, THE REGENERATION GAUGE ON THE FAR RIGHT OF THE DASHBOARD MOVES IMMEDIATELY TO MAXIMUM INDICATION AND ALL WARNING LIGHTS BECOME ILLUMINATED. DURING THE FIRST DEALER SERVICE ON JULY 24, 2015 THE DEALER FOUND CODE MESSAGE U029887, U016883 AND U029287 MISSING. DEALER PERFORMED A SOFTWARE UPDATE AND UPDATED PTCU DRIVETRAIN N127 MODULE. THE DEALER HAS REPLACED THE PTCU DRIVETRAIN N127 TWICE - ONCE ON SERVICE DATED JULY 29, 2015 AND AGAIN ON SERVICE DATED AUGUST 28, 2015. ON SERVICE DATED JULY 29, 2015 DEALER REPLACED DRIVETRAIN GATEWAY MODULE N93/8. FOUND CODE C10C800 NOT RELATED. ON SERVICE DATED AUGUST 28, 2015 DEALER RETRIEVED ALL DATA FROM PTCU DRIVETRAIN MODULE N127. OWNER HAS VIDEOTAPED THE LOSS OF POWER OCCURRING AND PROVIDED IT TO DEALER. OWNER'S CHILDREN ARE FRIGHTENED TO DRIVE IN THE VEHICLE. TEENAGE DAUGHTER WAS VERY FRIGHTENED DRIVING AT 65 MPH WHEN SHE EXPERIENCED UNEXPECTED TOTAL LOSS OF POWER AND HAD TO DRIFT INTO THE THE LEFT SHOULDER OF A BUSY FREEWAY AND RESTART THE CAR AFTER COMING TO A STOP. MERCEDES AND TESLA - YOU HAVE A LEMON!

The electric motor was leaking coolant and needs to be replaced. I have read countless accounts that this is a known issue with this car.

The main electric drive motor will start leaking coolant which then damages the motor and even electronics. Well known issue and makes the vehicle unsafe and isn't a matter of "if" but "when" the seals will go bad and this is on our car that has less than 40k miles on the odometer.

MERCEDES DEALER NOTES : 07/19/2022 CLIENT STATES STEERING IS STIFF. STARTED ABOUT 1 TO 2 MONTHS AGO AND WOULD SHOW UP ONCE AND AWHILE. WHEN IT WOULD ACT UP WOULD NOT DRIVE IT AND IT WOULD LOCK THE STEERING . THIS HAPPENED MULTIPLE TIMES, WITH ACCIDENT HAZARD. WE DID THE BELOW WORK. ELECTRIC POWER STEERING RACK FAULTY REPLACE COMPLETE ELECTRIC POWER STEERING RACK. WHICH COST US OVER $3000. NOW WE HAVE SIMILIAR PROBLEM STEERING IS TIGHT AGAIN, MAKING FLAPPING NOISE, DEALER RECOMMENDED REPLACEMENT OF POWER STEERING RACK, GEAR BOX 07/02/24 , MERCEDES HAS RECALL ON MANY MODELS DURING YEAR 2015-2018 FOR electric power steering systems, Mercedes says the cars use electric power steering systems that May have soldered contacts that weren't soldered correctly inside the control units. The bad contacts can cause a sudden loss of power steering while driving, causing serious problems if driving around a curve or at slow speeds.

THUMP! COMPLETE LOSS OF POWER ON FREEWAY. RANDOM SHIFT TO NEUTRAL ISSUE. DRIVING HOME FROM THE PURCHASING THE CAR ON THE 101 SOUTHBOUND IN THE FAST LANE GOING 65 MPH. ACCELERATION WAS SUDDENLY LOST. THE POWER TRAIN MALFUNCTIONED AND SHIFTED ITSELF INTO NEUTRAL. THE GAS PEDAL WAS UNRESPONSIVE. HAD TO PULL OVER AT WOODMAN EXIT ON INERTIA ALONE. WE HAD JUST PURCHASED THE CAR ONLY 2 HOURS PRIOR TO THIS INCIDENT AND PUT 30 MILES ON THE ODOMETER. NO WARNING LIGHTS APPEARED. MY RESEARCH ON THIS ISSUE SHOWS THAT IT IS THAT SAME ISSUE THAT HAS CAUSED THE RAV4 EV RECALL. THIS ISSUE IS EXTREMELY DANGEROUS AND IS AFFECTING MANY OTHER B-CLASS OWNERS.