2014 MERCEDES-BENZ CLA250 Complaints

I HAVE HAD THE SAME ISSUE AS MANY OTHERS. I WAS DRIVING MY CAR DOWN THE HIGHWAY IN THE LEFT LANE AT 65 MPH. ALL OF A SUDDEN THE SPEEDOMETER DROPPED TO 0 AND I COULD NOT ACCELERATE. I HAD TO PULL OVER TO THE SIDE OF THE ROAD AND TURN OFF THE CAR. THIS FIRST HAPPENED TO ME TWICE IN DECEMBER 2013. I TOOK IT INTO THE DEALERSHIP AND THEY DID SEVERAL THINGS TO TRY AND FIX IT. THEY TOLD ME THEY UPDATED THE SOFTWARE. I WAS SCARED TO CONTINUE DRIVING THE CAR, BUT THEY ASSURED ME IT WOULDN'T HAPPEN AGAIN. BUT, THE SAME ISSUE JUST HAPPENED TO ME AGAIN (JUNE 2016). WHY HASN'T MERCEDES DONE ANYTHING TO FIX THIS? I DON'T WAN TO DRIVE A CAR THAT LOSES SPEED WHILE I'M ON A BUSY HIGHWAY, IT'S NOT SAFE.

I HAVE HAD THE SAME ISSUE OF THE CAR, BEING IN PARK FOR OVER 5-10 MINUTES, SUDDENLY LUNGING FORWARD. IT IS QUIET STARTLING TO HAVE IT HAPPEN. I WORRY THAT WHEN I EXIT THE CAR WITH THE ENGINE RUNNING ( DUE TO PASSENGERS STILL IN THE CAR) SOMETHING WILL HAPPEN. THIS HAS HAPPEN SEVERAL TIMES WITH ME.

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ CLA250. WHILE DRIVING 50 MPH, THE CHECK ENGINE AND RPM WARNING LIGHTS ILLUMINATED. IN ADDITION, THE ENGINE MADE A LOUD UNKNOWN NOISE AND THE VEHICLE BEGAN TO LOSE SPEED. THE FAILURE RECURRED THREE TIMES. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE FUEL PEDAL WAS REPLACED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 1,000.

TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ CLA250. WHILE DRIVING AT VARIOUS SPEEDS, THE INOPERABLE PRE-SAFE WARNING LIGHT ILLUMINATED AND THE VEHICLE BEGAN TO STALL. THE FAILURE WAS PERSISTENT. WHILE THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE FAILED TO ACCELERATE. THE VEHICLE WAS ABLE TO RESTART. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE PINS FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS APPROXIMATELY 24,000. THE VIN WAS NOT AVAILABLE.

THE VEHICLE WILL STOP ACCELERATION WHILE DRIVING. THE MESSAGE STATES "PRE-SAFE FUNCTIONS LIMITED". WHEN THE CAR SHUTS OFF FOR NO APPARENT REASON WHEN DRIVING AT 70 MPH ON A HIGHWAY IS REALLY UNSAFE. I HAVE TO COAST TO THE SIDE OF THE ROAD TO SAFETY. I HAVE TURN THE VEHICLE OFF AND THEN I WILL BE ABLE TO RESTART THE ENGINE. I HAVE NOT TAKEN THIS INTO MY MERCEDES DEALERSHIP YET.

MULTIPLE EPISODES OF "PRE-SAFE FUNCTIONS LIMITED" OCCURRING. WHEN THIS MESSAGE APPEARS THE CAR SUDDENLY LOSES ACCELERATION AND YOU ARE NOT ABLE TO GO ABOVE 30 MPH DESPITE PRESSING ON THE GAS PEDAL. THIS HAS OCCURRED ON NORMAL 35-45 MPH STREETS BUT HAS HAPPENED MULTIPLE TIMES ON THE HIGHWAY WHEN THE CAR IS GOING 65 MPH. LUCKILY, NO MOTOR VEHICLE ACCIDENTS HAVE OCCURRED BECAUSE OF THIS ISSUE. THE CAR IS ABLE TO ACCELERATE AND FUNCTION NORMALLY AFTER TURNING THE ENGINE OFF AND ON AGAIN. HAVE GONE TO MERCEDES DEALER MULTIPLE TIMES TO FIX ISSUE. THE FIRST TIME IT OCCURRED, MERCEDES UPDATED SYSTEM SOFTWARE. NEXT THEY REPLACED VEHICLE SENSORS. MOST RECENTLY THEY CLAIMED THE ISSUE WAS DUE TO OIL PUMP FAILURE. THEY REPLACED AN OIL CONTROL VALVE AND OIL PAN. FOUR DAYS AFTER THE REPAIR I RECEIVED THE SAME "PRE-SAFE FUNCTIONS LIMITED MESSAGE, MY CAR STALLED WHILE I WAS GOING 40 MPH. I HAVE RETURNED THE CAR TO THE DEALER ONCE AGAIN TO RUN DIAGNOSTICS. THIS HAS OCCURRED MANY TIMES IN THE TWO AND A HALF YEARS THAT I'VE OWNED THE VEHICLE. IT IS CURRENTLY AT 49,200 MILES AND HAS BEEN PROPERLY SERVICED. EACH TIME I BRING THE CAR IN FOR THIS ERROR MESSAGE MERCEDES REPLACES A NEW PART BUT IT DOES NOT SOLVE THE PROBLEM.

ON MULTIPLE OCCASIONS, THE VEHICLE WILL SHUT OFF WHILE DRIVING. THE MESSAGE STATES "PRE-SAFE FUNCTIONS LIMITED". WHEN THE CAR SHUTS OFF FOR NO APPARENT REASON, I HAVE TO COAST TO THE SIDE OF THE ROAD TO SAFETY. I HAVE TURN THE VEHICLE OFF AND THEN I WILL BE ABLE TO RESTART THE ENGINE. I'VE ALREADY TAKEN THIS INTO MY MERCEDES DEALERSHIP AND THEY DID NOT FIX THE ISSUE. I'M AFRAID THIS IS GOING TO CAUSE A FATAL ACCIDENT AND I HAVE TWO SMALL CHILDREN. PLEASE MAKE THIS A HIGH PRIORITY

BOUGHT BRAND NEW CLA250 A YEAR AGO AND DRIVING LAST WEEK ON THE HIGH WAY AND "INOPERATIVE MODE" WENT ON AND YOU LOSE ALL ACCELERATION POWER. AFTER I PULLED OVER FINALLY RESTARTING THE CAR A FEW TIMES I REGAINED ACCELERATION. CURRENTLY AT DEALER BEING ASSESSED

WHILE DRIVING AT HIGHWAY SPEED THE ACCELERATOR PEDAL SUDDENLY FAILED. THE ENGINE WOULD NOT RESPOND TO ANY INPUT OF THE GAS PEDAL. I PUMPED THE PEDAL, FLOORED THE PEDAL ALL WITH NO RESPONSE. THE ENGINE WOULD NOT REV PAST IDLE AND THE CAR LOST SPEED MAKING CHANGING LANES DIFFICULT AND DANGEROUS. THE ERROR MESSAGES SHOWN IN THE PHOTOS APPEARED IN THE DASHBOARD. THIS HAS HAPPENED TWICE (11/30/15 AND 12/6/15).

WHILE TRAVELING AT 50MPH DOWN A BUSY STREET DURING MY MORNING RUSH HOUR COMMUTE, THE VEHICLE CUT OFF ALL POWER AND WENT INTO "PRE-SAFE MODE" WHICH IS COMMONLY KNOWN AS "LIMP HOME MODE." WHEN THIS HAPPENS, THE DRIVER HAS NO ABILITY TO ACCELERATE AND IF THE DRIVER IS UNABLE TO PULL OVER IN A SAFE AREA, PUTS THEM AT EXTREMELY HIGH RISK OF SERIOUS ACCIDENT. THIS IS A COMMON PROBLEM WITH MANY MERCEDES BENZ VEHICLES THAT ARE EQUIPPED WITH ESP (TRACTION CONTROL). A SIMPLE GOOGLE SEARCH OF THIS ISSUE WILL VALIDATE THIS AS A WIDESPREAD MAJOR DESIGN FLAW IN MERCEDES BENZ PRODUCTS. PLEASE TAKE THE TIME TO LOOK INTO THIS EXTREMELY DANGEROUS PROBLEM, AS MANY OTHER MERCEDES OWNERS HAVE EXPERIENCE THIS IN MORE DANGEROUS CIRCUMSTANCES (ON THE HIGHWAY).