2014 Mercedes-Benz E350 Driver assistance Problems

The failure was when I hit the brakes hard in an emergency braking situation and the car very eratically and violently veered to the left. There was no warning and thank God there was no car coming in the left lane otherwise it would have been a broad side hit. I was doing 55 mph. We had the car inspected at a local shop and the left rear tie rod link was completely severed from the suspension sub-frame because of rust. The brake lines above the sub frame were also severely rusted and leaking. I called my closest dealer and they said the rusted frame replacement is covered under extended warrenty but not the brake lines which had the same issue, severe corrosion and a potential catostrophic failure! Mercedes Road Side Assistance was called to tow the car 70 miles to the closest shop.

NHTSA ID

11752742

Incident

Jul 18, 2026

While driving, the steering from left to right started to get choppy or hard. With the cruise control on, I ran off the road because of the fight between the rack and pinion(steering wheel) and the cruise control.

NHTSA ID

11679228

Incident

Jul 9, 2025

Sometimes my blind spot warning arrows will just blink while I'm driving and they won't let me know of the blind spot Also my windshield is leaking through the windshield when it rains it leaks the side of the roof part is not put on properly I can tell that it is not even on both sides

NHTSA ID

11676194

Incident

Apr 23, 2025

Vehicle is 9 years old, with 73000 miles. Dealer Service has advised that the rear subframe and brake lines are rusting and need to be replaced as a safety issue. Cost quoted was $8800. Mercedes agreed to pick up the cost of the parts and the dealer offered to split the installation cost, bringing my total down to $3150. On-line research reveals this is a common problem across several product lines and has been an issue for 20+ years. Failure at this point could lead to uncontrolled movement of the the rear suspension structure, the rear suspension members, wheels, and electronic sensors in the ABS causing loss of control and brake failure.

NHTSA ID

11475442

Incident

Jul 12, 2022

Intermittently, while driving several of the electrical systems will fail including the lane keep assist and abs. When this happens, it also causes the instrument cluster to rapidly change speeds, making the vehicle unsafe to operate as the driver is unable to tell what speed they are going, which can become extremely hazardous since this happens at random. The issue has been diagnosed to be a faulty Radar Sensor in the rear bumper, however the specific part has been on backorder since February 2022 and Mercedes-Benz has shown no signs of urgency with resolving this issue. I have a video of the ongoing hazard that I can submit as well, it's just too large to attach to this form.

NHTSA ID

11470046

Incident

Mar 19, 2022

WHEN I PUT GAS IN THE CAR BEYOND ONE QUARTER OF A TANK, I GET A VERY STRONG GAS SMELL COMING FROM THE DRIVERS SIDE REAR FENDER AND TIRE AREA.. THERE IS NO VISIBLE GAS LEAK ON MY GARAGE FLOOR. THE CAR IS STATIONARY/PARKED IN THE GARAGE

NHTSA ID

11399266

Incident

Dec 1, 2020

Mileage

70,000 mi

MY STEERING WHEEL WILL NOT TELESCOPE UP/DOWN. I HAVE HAD THIS REPAIRED 2X'S IN THE PAST 3 YEARS. 5/2017, 6/2018, 8/2019, 12/2020 ADDITIONALLY, THE BLIND SPOT ASSIST NOTIFICATION GOES OFF WHEN THERE'S NOT A CAR AROUND ME. TYPICALLY HAPPENS WHEN I'M DRIVING AND GO DOWN A SLIGHT DECLINE IN THE ROAD.

NHTSA ID

11382839

Incident

Dec 10, 2020

WHILE DRIVING THE VEHICLE AT 40MPH ON A CITY STREET, ALL WARNING LIGHTS SUDDENLY CAME ON AND THE MOTOR STALLED. THE VEHICLE LOST ALL STEERING, BRAKING AND SPEED CONTROL. THE VEHICLE HAD TO BE REMOVED FROM THE ROAD BY A TOW TRUCK. IT WAS A DANGEROUS SITUATION AS THE VEHICLE LOST ALL CONTROLS WHILE IN MOTION. THE VEHICLE WAS LOCKED IN PARK AND DASH WARNING OF "PRE-SAFE CONDITIONS, DO NOT SHIFT."

NHTSA ID

11353696

Incident

Sep 7, 2020

Mileage

86,500 mi

DISTRONIC WAS IN USE, AND FAILED. ABS LOCKE UP, CAUSING ME TO SKID INTO ANOTHER VEHICLE.

NHTSA ID

11197308

Incident

Mar 17, 2019

Mileage

41,000 mi

08/13/2018 WHEN I WAS DRIVING HOME TODAY STEERING AND BRAKES FAILED FOR LIKE 1-2 MINUTES AND I LOST CONTROL.. THEN ALL THE INSTRUMENT WARNING LIGHTING STARTED TO FLASH CONTINUALLY THE TEMP GAUGE AND RPM WAS IN MOTION. SRS AND ALL PRE SAFE FUNCTIONS MALFUNCTIONED I CAN SEND AN VIDEO OF THIS IF THERE IS A WAY TO UPLOAD. I THINK THIS IS A SERIOUS SAFETY ISSUE WHAT IF I LOST CONTROL ON A HIGHWAY, EVEN FOR A SPLIT SECONDS. WHY I BOUGHT A MERCEDES I THOUGHT ITS A SAFER CAR WELL THAT'S HOW THEY ADVERTISE IT THE BEST OR NOTHING. BUT THAT COUPLE OF MINUTES WAS SCARY AND SHOCKING FOR ME

NHTSA ID

11119760

Incident

Aug 13, 2018

Mileage

36,000 mi

FOR A COUPLE OF MONTHS WHEN I PUT MY 2014 E350 SPORT IN PARK IT WOULD JERK FORWARD. NEVER REALLY THOUGHT ABOUT IT BEING A PROBLEM. I WAS DRIVING MY CAR INTO MY NEIGHBORS DRIVEWAY AND WENT TO TURN AROUND AND JUST AS I WENT TO PUT THE CAR IN REVERSE, THE CAR PROPELLED FORWARD DIRECTLY INTO HER TREE. IF THE TREE HAD NOT BEEN THERE MY CAR WOULD HAVE WENT INTO THE FRONT OF HER HOUSE. I AM THANKFUL THAT I AM JUST SHAKEN UP AND A LITTLE SORE. I AM ALSO THANKFUL THAT I WAS THE ONLY ONE IN THE CAR DURING THIS FREAK EVENT AND THAT IF HAPPENED WHERE IT DID BECAUSE THE 2 OTHER TIMES THAT I WAS IN MY CAR THAT DAY IS WAS IN HEAVY TRAFFIC AND I WOULD HAVE DONE MAJOR DAMAGE TO MYSELF AND POSSIBLY SOMEONE ELSE. AT FIRST I BELIEVE MY SHOE GOT CAUGHT ON THE ACCELERATOR, BUT THERE IS NO POSSIBLE WAY THIS COULD BE THE ISSUE AS I WAS APPLYING IT TO THE BRAKE WHEN THE CAR PROPELLED FORWARD. FOR AS HARD AS I HIT THE TREE THE AIRBAG DID NOT DEPLOY. I WAS ABLE TO DRIVE MY CAR BACK HOME WITH ALL THE COOLANT LEAKING FROM IT. *TR

NHTSA ID

10914900

Incident

Oct 7, 2016

Mileage

28,000 mi

WHILE DRIVING ON THE HIGHWAY, I ATTEMPTED A HEAVY ACCELERATION TO GET THE CAR UP TO TRAFFIC SPEED. TWO TIMES IN THE PAST 60 DAYS, THE CAR SERIOUSLY MALFUNCTIONED WITH MULTIPLE DASHBOARD INDICATOR LIGHTS AND THE MAIN TEXT "PRE SAFE FUNCTIONS LIMITED" ACCOMPANIED BY A TOTAL LOSS OF SPEED CONTROL. THE ACCELERATOR BECAME 100% UNRESPONSIVE AND I HAD TO COAST TO AN EMERGENCY LANE. THERE WAS SIGNIFICANT DANGER IN BOTH INSTANCES AS I HAD TO CROSS MULTIPLE LANES OF TRAFFIC WITH NO POWER TO GET TO SAFETY. THE WEATHER WAS CLEAR AND THE EXTERNAL SENSORS WERE NOT OBSTRUCTED BY DIRT OR SNOW- WHICH HAS PREVIOUSLY CAUSED THE PRE-SAFE FUNCTIONS LIMITED MESSAGE. I BELIEVE THAT THE MULTIPLE ERRORS INDICATED ON THE DASHBOARD ARE ALL ERRONEOUS TO THE CORE ISSUE OF A SUDDEN AND TOTAL LOSS OF POWER UPON HEAVY ACCELERATION. THE RESOLUTION WAS TO SHIFT THE CAR INTO PARK, PUSH THE IGNITION BUTTON AS IF TURNING THE VEHICLE OFF, WAIT AND RESTART. THE CAR OPERATES NORMALLY UPON RESTART. NOTE THAT THE ENGINE APPEARED TO ALREADY BE OFF PRIOR TO SHIFTING INTO PARK. IT IS AS IF THE HEAVY ACCELERATION KILLED THE ENGINE. THIS ISSUE HAS POTENTIAL FATAL CONSEQUENCES IF THE DRIVER IS UNABLE TO GET THE CAR OUT OF THE LANE OF HIGH SPEED TRAFFIC-- AS I WAS IN. A LESS EXPERIENCED OR PANICKED DRIVER COULD EASILY FAIL TO HANDLE THE SITUATION AND GET REAR ENDED AT HIGH SPEED AS THE CAR CAN ONLY BE RESET BY GETTING IT INTO PARK AND RESTARTED. SIMILAR BLOG POSTS ONLINE REPORT THE SAME WITH OTHER MERCEDES VEHICLES. I HAVE HAD THE CAR FOR FOUR MONTHS AND IT HAS HAPPENED TWICE. SEEMS LIKE A SOFTWARE/ELECTRONIC ISSUE CAUSING THE MECHANICAL ISSUE TO ME. VERY DANGEROUS.

NHTSA ID

10839989

Incident

Mar 3, 2016

Mileage

29,000 mi

MY CLAIM # IS10691110 THE LANE CONTROL DOES NOT FUNCTION CONSISTANTLY. SOMETIMES WHEN YOU CROSS A LINE, THE REAR BRAKE ON THE OPPOSITE SIDE OF THE CAR AUTOMATICALLY APPLIES BRINGING THE CAR BACK TO THE CENTER OF THE LANE, OTHER TIMES IT DOESN'T. I DEMONSTRATED THIS TO THE MAINTENANCE MGR. WITH NO SATISFACTION. I'VE DISCUSSED WITH A CASE MGR ON SEVERAL TIMES, WITH NO SATISFACTION. I'VE WRITTEN THE PRES OF MERCEDES ON TWO OCCASSIONS, WHO REFERRED MY CONCERN BACK TO THE SAME CASE MGR. WHO SAYS IT IS FUNCTIONING AS DESIGNED,IN SPITE OF THE FACT I DEMONSTRATED TO THE DEALER MAINT. SUPERVISOR THAT IT DOESN'T.I ASKED FOR A REGIONAL PERSON TO RIDE WITH ME SO I COULD DEMONSTRATE THE INCONSISTANCY OF THE WAY IT FUNCTIONS. I WAS DENIED MY REQUEST. NHTSA SEEMS TO BE MY ONLY HOPE FOR GETTING MY SAFETY CONCERN RESOLVED FOR ME AND ANY OTHERS WHO MAY HAVE THE SAME PROBLEM. THE PROBLEM WAS DEMONSTRATED ON STATE RT. 33 IN DUBLIN OH. WITH PAINTED ROAD LINES THAT WERE CONSISTINT. I HAVE MANY NOTES OF ADDITIONAL DETAIL IF WANTED.

NHTSA ID

10786798

Incident

Mar 15, 2014

Mileage

4,000 mi

WHILE DRIVING ON A SIDE STREET LOOKING FOR AN ADDRESS, A WARNING MESSAGE APPEARED SOMETHING LIKE "LANE GUIDANCE SYSTEM INOPERATIVE". SUBSEQUENTLY, THE ENGINE LOST POWER AND WOULD NOT MOVE THE VEHICLE MORE THAN ABOUT 3 MPH. WE PULLED OFF TO THE SIDE, NOT KNOWING WHAT TO DO. I SHUT OFF THE ENGINE AND RESTARTED IT AND IT APPEARED TO WORK NORMALLY FOR THE REST OF THE TRIP HOME. WE WONDER WHAT WOULD HAVE HAPPENED IF WE HAD BEEN IN A MIDDLE LANE ON A FREEWAY WHEN THIS HAPPENED. I PLAN ON CONTACTING THE DEALER TODAY FOR MORE INFORMATION AND TO HAVE THEM INSPECT THE CAR. *TR

NHTSA ID

10702888

Incident

Mar 30, 2015

Mileage

1,100 mi

TL* THE CONTACT OWNS A 2014 MERCEDES BENZ E350. THE CONTACT STATED THAT THE LANE CONTROL FEATURE FAILED TO WORK INTERMITTENTLY. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER. THE TECHNICIAN WAS UNABLE TO REPLICATE AND DIAGNOSE THE FAILURE. THE CONTACT WAITED LONGER THAN SIX WEEKS FOR A RESPONSE FROM THE DEALER WHO INDICATED THAT THE CONCERN WAS TO BE ESCALATED TO THE MANUFACTURER. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 3,000.

NHTSA ID

10691110

Incident

May 5, 2014

Mileage

3,000 mi

CRUISING AT 65 MPH THE ESC LIGHTS CAME ON AND THE CAR LOST POWER. IT NO LONGER RESPONDED TO THE ACCELERATOR AND REQUIRED THAT YOU PULL OFF THE ROAD, COME TO A STOP, AND RESTART THE CAR. THIS SAME PROBLEM HAS HAPPENED 3 MORE TIMES ONCE AT 35 MPH ON A STRAIGHT ROAD; ONCE AT ABOUT 20 MPH MAKING A TURN AND AGAIN CRUISING ON AN EXPRESSWAY AT ~50 MPH. THIS IS AN EXTREMELY DANGEROUS DEFECT, SINCE A FAILURE OF THIS TYPE WHEN ENTERING A HIGHWAY OR TRYING TO OVERTAKE ANOTHER VEHICLE COULD CAUSE A HIGH SPEED ACCIDENT, RESULTING IN SERIOUS INJURIES OR FATALITIES. THE CAR HAS BEEN TO THE DEALER TWICE TO FIX THIS, AND IS NOW BACK FOR THE THIRD TIME. *TR

NHTSA ID

10671878

Incident

Sep 30, 2014

Mileage

2,000 mi

THE TRANSMISSION JERKS BETWEEN 3-4 GEAR UP SHIFT CHANGE, CREATING INSTABILITY ON WET OR SLICK ROAD CONDITIONS WHICH CAN CAUSE YOUR CAR TO LOSE CONTROL. FURTHERMORE, THE JERKING CREATED CAN CREATE A CAR ACCIDENT OR INJURY IN LOW SPEED, STOP AN GO TRAFFIC. MERCEDES BENZ CLAIMS IT IS PERFORMING AS DESIGNED AND IS NOT ACCEPTING LIABILITY FOR THERE DEFECTIVE PRODUCT. *TR

NHTSA ID

10578773

Incident

Feb 7, 2014

Mileage

800 mi