2014 Mercedes-Benz E-Class Problems & Owner Complaints

Air Bags 58 4 crash 3 injury

“TL* THE CONTACT OWNED A 2014 MERCEDES-BENZ E350. WHILE DRIVING LOW SPEEDS, THE CONTACT'S VEHICLE WAS T-BONED ON THE DRIVER'S SIDE. THE AIR BAGS DID NOT DEPLOY. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TOTALED AND TOWED FROM THE SCENE. THE CONTACT AND PASSENGER SUFFERED INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT DIAGNOSED. THE DEALER AND MANUFACTURER WERE MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 49,000 *BF ... CONSUMER STATED SEAT BELT DID NOT TIGHTEN DRIVING THE IMPACT. DRIVER RECEIVED HEAD INJURY AND BROKEN BONE…”
NHTSA complaint #11193378, 2019 · crash · 1 injury(ies)

“TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ E350. WHILE DRIVING 40 MPH, THE CONTACT REAR ENDED THE PRECEDING VEHICLE. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED HEAD, EYE, AND NECK INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED AND NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS NOT AVAILABLE. UPDATED 06/20/16*LJ UPDATED 05/29/18*JB”
NHTSA complaint #10836485, 2015 · crash · 1 injury(ies)

“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…”
NHTSA complaint #10914900, 2016 · crash

Service Brakes 54 1 crash 1 fire 1 injury

“DISTRONIC WAS IN USE, AND FAILED. ABS LOCKE UP, CAUSING ME TO SKID INTO ANOTHER VEHICLE.”
NHTSA complaint #11197308, 2019 · crash · 1 injury(ies)

“Vehicle subframe corrosion (manufacturer extended warranty offered). Rear brake lines corroded/leaking. Vehicle leaks fuel; steel fuel line corroded. Vehicle has about 105k miles. Minor fire started when yard maintenance came in contact with fuel saturated ground where vehicle had been parked/moved out of the way just prior. With rear suspension subframe springs corroded, vehicle bottom can contact road surface while driving, scraping steel exhaust with fuel present. EXTREMELY dangerous. Local Sunbury Ohio Mercedes dealership inspected then offered subframe replacement. Stated it w…”
NHTSA complaint #11749054, 2026 · fire

“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…”
NHTSA complaint #11752742, 2026

Electrical System 41 1 crash 10 fire

“There have been three events, all the same. Each time a speaker in a door, while driving, has began to squeal, sputter and the smoke. The first occurred while sitting inside a car wash, with the windows up, obviously. I was able to open the window, drenching myself, but venting the acrid electrical smoke. The second was while driving home from a medical clinic. The third was while driving on the interstate, traveling from my mothers funeral in California to Wisconsin It was 2am, just outside of Vail, Colorado in the rain. My wife was driving, while I slept. I woke to her screaming tha…”
NHTSA complaint #11485540, 2021 · crash · fire

“I've had the car for 3 years and its all stock. It has 38,500 miles and today out of no where the driver side speaker in the door started making a crackling and popping noise. Smoke started coming from the speaker and filled the cabin. I quickly pulled over and turned off the car, because the smell of plastic burning was horrible. I was immediately alarmed by this and let the car cool down. I started driving again and it started again crackling and alot of smoke coming from the speaker. I called my mechanic and he said that that car had a known problem for a short and others had complained abo…”
NHTSA complaint #11677680, 2025 · fire

“While driving in stop and go traffic I heard a loud popping noise from the dash area and smoke started filling the cabin. I called a DC area dealer service dept and was told to exit the DC beltway and un plug the audio amplifier in the trunk left access door That stopped the popping noise and the smoke .”
NHTSA complaint #11633188, 2024 · fire

Suspension 31 2 crash 1 fire 1 injury

“On 11/24/23 Mercedes Benz had replaced my subframe which was part of a safety recall. When I arrived home after picking up my vehicle, there was a loud bang from under the vehicle. I immediately called the service department and told them about what happened and also complained that the steering wheel was cocked to the left and pulling in that direction. My service advisor John advised me to bring it back the next day which I did. They never told me what caused the loud bang, but they did say another front end alignment was done. The vehicle still continued to pull and the steering wheel was s…”
NHTSA complaint #11564988, 2023 · crash · 1 injury(ies)

“Vehicle subframe corrosion (manufacturer extended warranty offered). Rear brake lines corroded/leaking. Vehicle leaks fuel; steel fuel line corroded. Vehicle has about 105k miles. Minor fire started when yard maintenance came in contact with fuel saturated ground where vehicle had been parked/moved out of the way just prior. With rear suspension subframe springs corroded, vehicle bottom can contact road surface while driving, scraping steel exhaust with fuel present. EXTREMELY dangerous. Local Sunbury Ohio Mercedes dealership inspected then offered subframe replacement. Stated it w…”
NHTSA complaint #11749054, 2026 · fire

“Have purchased a 2014 mercedes E350 59k miles. This vehicle has an issue as so do many Mercedes with their rear subframes rotted out at the control arm bracket which causes the rear link/thrust arm to detach from the subframe/axle carrier and posses a danger when breaking due to the rear spindle assembly flexing throwing the wheels out of alignment and could be at risk for a car crack. This vehicle has already been in a minor crash as a result of this issue. I personally have not brought it to Mercedes to get it diagnosed inspected or the police law enforcement but there are many cases online…”
NHTSA complaint #11472559, 2021 · crash

Steering 29 2 crash 1 injury

“On 11/24/23 Mercedes Benz had replaced my subframe which was part of a safety recall. When I arrived home after picking up my vehicle, there was a loud bang from under the vehicle. I immediately called the service department and told them about what happened and also complained that the steering wheel was cocked to the left and pulling in that direction. My service advisor John advised me to bring it back the next day which I did. They never told me what caused the loud bang, but they did say another front end alignment was done. The vehicle still continued to pull and the steering wheel was s…”
NHTSA complaint #11564988, 2023 · crash · 1 injury(ies)

“Have purchased a 2014 mercedes E350 59k miles. This vehicle has an issue as so do many Mercedes with their rear subframes rotted out at the control arm bracket which causes the rear link/thrust arm to detach from the subframe/axle carrier and posses a danger when breaking due to the rear spindle assembly flexing throwing the wheels out of alignment and could be at risk for a car crack. This vehicle has already been in a minor crash as a result of this issue. I personally have not brought it to Mercedes to get it diagnosed inspected or the police law enforcement but there are many cases online…”
NHTSA complaint #11472559, 2021 · crash

“While braking from highway speeds or any other speed, the vehicle becomes unstable and pulls to the left, making it difficult to maintain control. During hard braking, the vehicle does not track straight and requires steering correction to remain in its lane, creating a significant safety hazard. To diagnose the problem, the vehicle was inspected by an independent mechanic. An alignment was performed, and the suspension and braking systems were inspected. The mechanic determined that the rear subframe has severe rust and corrosion. The rusted rear subframe is available for inspection upon req…”
NHTSA complaint #11751828, 2026

Unknown Or Other 28 1 crash 5 fire

“This car has an electrical problem related to the Radio Amplifier and Speakers. many stories on the net of burning wire speakers and amplifier related to this. i will attach link, my story same as all the rest. I have disconnected after wife complained of smell of electrical fire and smoke from speakers. our car hs Apc 56,000 miles now. https://www.carcomplaints.com/Mercedes-Benz/E350/2014/electrical/electrical_system.shtml Control Module - Mercedes-Benz TYP: Sirius – SDAR HW: 212 870 57 89 Date: 12/2019 SW: 212 902 79 03 Date 12/26/2000 Serial: 063005830376 Mercedes A 212 870 56 89…”
NHTSA complaint #11477048, 2022 · fire

“AFTER DRIVING FOR 1 HOUR, BACK SEAT SHELF SPEAKER MADE A LOUD POPPING AND HUMMING NOISE AND EMITTED A STRONG BURNING SMELL. TRUNK OPENED AND CONFIRMED SMOKE COMING FROM REAR AMPLIFIER, STRONG SMELL OF PLASTIC MELTING AND SPEAKERS WERE TOO HOT TO TOUCH. DISCONNECTED AMPLIFIER FROM BATTERY AND TOOK VEHICLE TO DEALER WHO CONFIRMED. DEALER RE-HOOKED AMPLIFIER TO BATTERY, CONFIRMED THAT AMPLIFIER WAS INDEED SMOKING AND SPEAKERS WOULD NEED REPLACING AS WELL. VEHICLE ONLY HAS 57,750 MILES AND IS OUT OF WARRANTEE. LOCAL DEALER MAINTENANCE REPRESENTATIVE AGREED THAT A VEHICLE WITH SUCH LOW MILEAGE SHOU…”
NHTSA complaint #11362034, 2020 · fire

“I WAS DRIVING ON ROUTE 40 (SPEED LIMIT 55MPH, BUT 45 MPH DUE TO CONSTRUCTION) WHEN I BEGAN HEARING RATTLING IN MY REAR PASSENGER SIDE SPEAKER, THEN CRACKLING, A BURNING SMELL AND THEN SMOKE FILLED MY VEHICLE. I BELIEVED MY VEHICLE WAS ON FIRE. HAD I NOT REMAINED CALM, I COULD HAVE CAUSED AN ACCIDENT. I ENDED UP DRIVING TO A NEARBY WALMART PARKING LOT WHERE I LEFT MY VEHICLE UNTIL IT WAS TOWED TO THE DEALERSHIP FOR A DIAGNOSTIC. THE TOW TRUCK DRIVER ALSO CONFIRMED SMELLING THE BURNING UPON STARTING MY VEHICLE TO PULL IT ONTO THE TOW TRUCK. THIS HAPPENED ALTHOUGH NO AUDIO WAS BEING USED IN THE V…”
NHTSA complaint #11156393, 2018 · fire

Structure 26 2 crash 5 injury

“THIS VEHICLE IS. A 2014 MERCEDES BENZ E350 CABRIOLET ON THIS VECHILE THERE IS A LATCH ON FRONT SEATS THAT IF PULLED FORWARD WILL MAKE WAY TO ENTER REAR SEATS BEING THAT IDLY IS A TWO DOOR CAR THIS IS THE SAME LAY OUT FOR ACCESSING BACK SEATS FOR THE COUPE MODEL THE LATCH THAT MUST BE PULLED IS SOME KIND OF PLASTIC COVERED IN SOME KIND OF METAL. DECORATIVE MATERIAL THIS METAL HAS PEELED OF WITH NO CAUSE HE EDGES OF THIS METAL THAT IS DEFECTIVE ON THESE CARS IS EXTREMELY SHARP WE HAVE SEVERELY CUT ARE HANDS WITH OUT REALIZING THESE DEFECT WAS THERE I WAS INFORMED THAT OTHER CARS ALSO HAVE TH…”
NHTSA complaint #11001831, 2017 · 3 injury(ies)

“On 11/24/23 Mercedes Benz had replaced my subframe which was part of a safety recall. When I arrived home after picking up my vehicle, there was a loud bang from under the vehicle. I immediately called the service department and told them about what happened and also complained that the steering wheel was cocked to the left and pulling in that direction. My service advisor John advised me to bring it back the next day which I did. They never told me what caused the loud bang, but they did say another front end alignment was done. The vehicle still continued to pull and the steering wheel was s…”
NHTSA complaint #11564988, 2023 · crash · 1 injury(ies)

“MY CAR HAS AN ELECTRONIC TRUNK CLOSURE. WITH THIS FEATURE, WHEN SOMEONE KICKS THEIR FOOT UNDER THE REAR BUMPER OF THE CAR, THE TRUNK LID OPENS OR CLOSES AUTOMATICALLY, ASSUMING HE OR SHE HAS THE CAR FOB IN HIS OR HER POSSESSION. MY WIFE HAS HAD THE TRUNK LID CLOSE ON HER HEAD ON TWO OCCASIONS WHILE TAKING ITEMS OUR OF THE TRUNK. SHE INADVERTENTLY ENGAGED THE AUTOMATIC CLOSURE WHILE LEANING INTO THE TRUNK. THE FIRST TIME, THE TRUNK LID HIT THE BACK OF HER HEAD, THE SECOND TIME IT HIT HER FOREHEAD. IN EACH CASE FOR SEVERAL DAYS FOLLOWING THE ACCIDENT, SHE HAD HEADACHES AND SWELLING AT THE POINT…”
NHTSA complaint #10692765, 2015 · 1 injury(ies)

Fuel/Propulsion System 25 1 crash 1 fire

“Vehicle subframe corrosion (manufacturer extended warranty offered). Rear brake lines corroded/leaking. Vehicle leaks fuel; steel fuel line corroded. Vehicle has about 105k miles. Minor fire started when yard maintenance came in contact with fuel saturated ground where vehicle had been parked/moved out of the way just prior. With rear suspension subframe springs corroded, vehicle bottom can contact road surface while driving, scraping steel exhaust with fuel present. EXTREMELY dangerous. Local Sunbury Ohio Mercedes dealership inspected then offered subframe replacement. Stated it w…”
NHTSA complaint #11749054, 2026 · fire

“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…”
NHTSA complaint #10914900, 2016 · crash

“Strong smell of fuel from the rear wheel well areas, especially after a fill. I have been searching the recalls and found a 15V-792 / 2015110006 Recall Summary as well as a 15V-792 / 2015110006 Recall Solution. Please advise if this is of safety concern and the dealer should address this concern. [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
NHTSA complaint #11732141, 2026

Engine 23 1 crash 1 fire

“TL* THE CONTACT OWNS A 2014 MERCEDES BENZ E-350. THE CONTACT STATED THAT THERE WERE HIGH TEMPERATURE EMISSION FUMES COMING INTO THE ENGINE AND PASSENGER COMPARTMENTS. A MISSING BOLT THAT HOLDS THE EMISSIONS PORTIONS THAT ROUTS THE EMISSION FUMES OUT OF THE VEHICLE. THE ENGINE COMPARTMENT NOW HAD DAMAGE OF BURNED INSTALLATION, MELTED ELECTRICAL WIRING AND COMPONENTS AND THE FIRE WALL ALL HAVING TO BE REPLACED. THE DEALER (MERCEDES-BENZ OF WEST HOUSTON 1025 HIGHWAY 6 N, HOUSTON, TX 77079 (281) 492-5800) HAVE THE VEHICLE AND WERE PERFORMING THE REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE…”
NHTSA complaint #11360917, 2020 · fire

“FOOT ON BRAKE TO EFFECT REVERSE AND THE ENGINE ACCELERATED AT HIGH SPEED UNCONTROLLED AND HIT TWO CARS IN REVERSE AND TOTALLY DESTROYED MY CAR.. THE VEHICLE WAS STOPPED IN A PARKING LOT”
NHTSA complaint #11163323, 2018 · crash

“Issue with fuel injection for Benz E350 2014 2014 Mercedes-Benz E350 fuel injection issues often stem from faulty injectors causing misfires, often on Cylinder 5, or a recalled fuel feed line. Symptoms include rough idling, reduced gas mileage, stalling, and check engine lights (P0300-P0306 codes).”
NHTSA complaint #11723123, 2026

Power Train 16 2 crash

“Have purchased a 2014 mercedes E350 59k miles. This vehicle has an issue as so do many Mercedes with their rear subframes rotted out at the control arm bracket which causes the rear link/thrust arm to detach from the subframe/axle carrier and posses a danger when breaking due to the rear spindle assembly flexing throwing the wheels out of alignment and could be at risk for a car crack. This vehicle has already been in a minor crash as a result of this issue. I personally have not brought it to Mercedes to get it diagnosed inspected or the police law enforcement but there are many cases online…”
NHTSA complaint #11472559, 2021 · crash

“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…”
NHTSA complaint #10914900, 2016 · crash

“The contact owns a 2014 Mercedes-Benz E350. The contact stated while driving approximately 50 MPH, the rear axle frame cracked, and the contact felt as if the vehicle was going to flip over. The vehicle was taken to an independent mechanic where it was determined that the rear axle frame was cracked, and that the vehicle could not be driven. The vehicle was not repaired. The contact related the failure with an unknown Technical Service Bulletin; however, the manufacturer confirmed that the vehicle was not included in the TSB. The contact was referred to the NHTSA Hotline for assistance. The f…”
NHTSA complaint #11600567, 2024

Fuel System 13 1 crash

“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…”
NHTSA complaint #10914900, 2016 · crash

“The contact owns a 2014 Mercedes-Benz E-Class. The contact stated while driving at an undisclosed speed, the contact noticed fuel odor in the interior and exterior of the vehicle. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure. The contact was advised to take the vehicle to the dealer for diagnostic testing. The failure mileage was approximately 78,000.”
NHTSA complaint #11738986, 2026

“The contact owns a 2014 Mercedes-Benz E350. The contact stated that while the vehicle was parked, fuel was leaking from near the fuel tank. There was no warning light illuminated. The contact stated that the failure was intermittent. The vehicle was taken to the dealer; however, the failure could not be duplicated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 40,905.”
NHTSA complaint #11728634, 2026

Wheels 11

“The rear subframe of my vehicle failed at the lower trailing arm mounting point (passenger side). This resulted in the car swerving to the right when I applied pressure to the brake pedal, which was worse at higher speeds. This had been getting progressively worse for a few weeks until I almost spun out on the highway while braking. The next day, I randomly got a flat tire on the rear right side while driving at 30MPH near Valley Street in Providence. There were no warning lamps or messages prior to the failure. I immediately replaced the tire and brought it to Midas on Mineral Spring Ave in N…”
NHTSA complaint #11516430, 2023

“2ND RIM TO CRACK UNDER NORMAL USE [IN FL, NOT THE NORTH EAST WITH POTHOLES] MERCEDES MECHANIC TOLD US THAT THEY NEVER SHOULD HAVE MOUNTED LOW PROFILE TIRES ON THIS RIM. THE TIRES DO NOT OFFER ENOUGH PROTECTION FOR THE RIM FROM NORMAL DRIVING HAZARDS. THIS SHOULD BE A RECALL ITEM AS A CRACKED RIM CAUSES FLATS, AT HIGH SPEED THAT CAN BE DEADLY”
NHTSA complaint #11311633, 2020

“I HAVE HAD 6 BLOW OUTS OR BUMPS IN MY TIMES IN 2.5 YEARS WITH THESE CONTIPROCONTACT 245/40 R 18 97V TIRES IN NORMAL, URBAN DRIVING. THE REP AT THE DEALERSHIP TOLD ME THAT THIS IS A VERY COMMON ISSUE WITH THESE TIRES AND HE DOES NOT RECOMMEND THEM TO ANYONE. THE MOST RECENT BLOWOUT HAPPENED WITH I WAS DRIVING 40 MPH AND I DID NOT HIT A POTHOLE OR BUMP. THAT TIRE WAS ONLY 3 MONTHS OLD WHEN IT BLEW. IN THE PREVIOUS 10 YEARS, I HAD 2 BLOW OUTS ON MY PREVIOUS. PLEASE INVESTIGATE”
NHTSA complaint #11234826, 2019

Seats 9

“Fuel system gasoline smell of gas and the threading in the crease of seats coming apart .. I noticed that some of the E350 2014 has the fuel systems gasoline problem … all of the E350 are having this fuel gasoline problem”
NHTSA complaint #11618976, 2024

“SEAT TOOR COST 850 TO GET REPAIRED 1500 FOR A KEY PLUS PROGRAMMING SO REFICULAS”
NHTSA complaint #11408605, 2020

“HEY I HAVE 2014 MERCEDES E350 WITH 57K ON IT. DRIVER SEAT HAS A TEAR AFTER TAKING TO THE MB DEALERSHIP AND WAS TOLD THAT IT IS A COMMON PROBLEM AND MY 7 SPEED TRANSMISSION HAS KINDA OF A SLIP IN 3 AND 4 GEAR ALSO TOOK TO MY DEALERSHIP AND WAS TOLD THERE IS NOTHING WRONG DID MORE RESEARCH AND FOUND OUT THAT ITS ALSO A COMMON PROBLEM”
NHTSA complaint #11399039, 2020

Electronic Stability Control (Esc) 8 1 crash 1 injury

“DISTRONIC WAS IN USE, AND FAILED. ABS LOCKE UP, CAUSING ME TO SKID INTO ANOTHER VEHICLE.”
NHTSA complaint #11197308, 2019 · crash · 1 injury(ies)

“IN STOP AND GO TRAFFIC APPROACHING AN INTERSECTION ON A WET ROAD, THE CAN BUS FAILED, DISABLING ALL OR NEARLY ALL SAFETY SYSTEMS. AT THE TIME, NUMEROUS WARNING MESSAGES AND LIGHTS APPEARED ON THE DASH FOR SRS, ABS, SEATBELT PRETENSIONER, ETC. THE ENGINE WOULD NOT TURN OFF USING THE START-STOP BUTTON, AND THE VEHICLE WOULD NOT SHIFT OUT OF DRIVE. ACCORDING THE DEALER SERVICE CENTER, A REAR BLIND SPOT RADAR SENSOR IS CORRODED, AND CAUSED A SHORT IN THE CAN BUS. THIS EXACT FAILURE HAS OCCURRED WITH AT LEAST ONE OTHER VEHICLE, DOCUMENTED HERE: HTTPS://WWW.BENZWORLD.ORG/FORUMS/W212-E-CLASS/291…”
NHTSA complaint #11140621, 2018

“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 complaint #11119760, 2018

Tires 8

“I HAVE HAD 6 BLOW OUTS OR BUMPS IN MY TIMES IN 2.5 YEARS WITH THESE CONTIPROCONTACT 245/40 R 18 97V TIRES IN NORMAL, URBAN DRIVING. THE REP AT THE DEALERSHIP TOLD ME THAT THIS IS A VERY COMMON ISSUE WITH THESE TIRES AND HE DOES NOT RECOMMEND THEM TO ANYONE. THE MOST RECENT BLOWOUT HAPPENED WITH I WAS DRIVING 40 MPH AND I DID NOT HIT A POTHOLE OR BUMP. THAT TIRE WAS ONLY 3 MONTHS OLD WHEN IT BLEW. IN THE PREVIOUS 10 YEARS, I HAD 2 BLOW OUTS ON MY PREVIOUS. PLEASE INVESTIGATE”
NHTSA complaint #11234826, 2019

“UNDER NORMAL, URBAN DRIVING CONDITIONS ON PAVED ROADS AND HIGHWAYS, WE'VE HAD THREE (3) SIDEWALL FAILURES ON FRONT TIRES. A 2014 MB E350 SPORT SEDAN WITH 18" AMG WHEELS AND CONTINENTAL PROCONTACT 245/40 R18 TIRES. IN EACH CASE, WE NOTICED THE BUBBLED SIDEWALL BEFORE ANY INCIDENT. TIRES HAD 70% TREAD REMAINING WITH APPROX 10,000 MILES. FAILURE OCCURRED ON FRONT TIRES ONLY.”
NHTSA complaint #11203107, 2019

“TIRE BRAND : CONTINENTAL TIRE LINE: CONTIPROCONTACT TIRE SIZE: 245/40R18 97V COMPONENT:SIDEWALL DOT NUMBER : HW2PN1H61314 SIDEWALL BLOWOUT IN DRIVEWAY WITHOUT HITTING ANYWHERE IN NORMAL TEMPERATURE. THREAD IS STILL IN GOOD CONDITION, UNDER 5,000 MILES DRIVEN. THERE ARE NO NAILS OR ANY ISSUES. IT JUST GOT BLOWOUT. CAR WAS PARKED IN DRIVEWAY AT 3.45 PM AND BLOWOUT HAPPENED AT 7.30 PM. OUTSIDE TEMPERATURE WAS AROUND 83F.”
NHTSA complaint #10903039, 2016

Vehicle Speed Control 7 3 crash 1 injury

“DISTRONIC WAS IN USE, AND FAILED. ABS LOCKE UP, CAUSING ME TO SKID INTO ANOTHER VEHICLE.”
NHTSA complaint #11197308, 2019 · crash · 1 injury(ies)

“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…”
NHTSA complaint #10914900, 2016 · crash

“MY WIFE WAS AT THE FINAL STAGE OF PARKING THE CAR ,MEANS,SLOWING THE CAR BY PUSHING THE BREAK THE CAR IN THE PARKING SLOT.WHEN SHE WAS IN POSITION TO STOP THE CAR SUDDENLY GOT ACCELERATION UNCONTROLLED.TO AVOID HITTING THE CAR IN FRONT OF HER SHE TURN WHEEL TO THE RIGHT AND WITH MAX. SPEED CAR JUMPED THROUGH THE EDGES OF THE ISLAND WITH THE TREE .TREE STOPPED THE CAR AND CAR AND TREE WAS DESTROY .SHE WAS DISTRESS.SHOCK AND TILL NOW HAS A NIGHTMARES.”
NHTSA complaint #10716054, 2015 · crash

Visibility/Wiper 5

“Rear electrical sunshade stopped retracting causing poor visibility at night.”
NHTSA complaint #11541133, 2023

“TL* THE CONTACT OWNS A 2014 MERCEDES-BENZ E550. WHILE DRIVING AT LOW SPEEDS, THE REAR PASSENGER SIDE SPEAKER AND WINDOW BEGAN TO SMOKE. THERE WAS ALSO AN ABNORMAL RUBBER AND BURNING ODOR AND A CRACKING NOISE EMERGING FROM THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT CALLED MERCEDES-BENZ OF DENVER (940 S COLORADO BLVD, DENVER, CO 80246, (303) 953-4581), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS 61,950.”
NHTSA complaint #11256099, 2019

“MY VEHICLE HAS THE DISTRONIC WITH LANE SENSING. THE OTHER DAY, THE AREA OF THE FRONT WINDSHIELD AROUND THE CAMERAS SPONTANEOUSLY BEGAN TO CRACK IN A CIRCULAR MANNER. NO OTHER CHIPS OR DINGS WERE PRESENT. WHEN I RESEARCHED THIS ISSUE ONLINE, I AM FINDING IT TO BE A VERY COMMON ISSUE. IT APPEARS IT CAN HAPPEN AT ANY TIME AND WITH REPLACEMENT GLASS AS WELL. MINE CRACKED ON A 95 DEGREE F DAY IN SOUTHERN CALIFORNIA.”
NHTSA complaint #11003928, 2017

Forward Collision Avoidance 4

“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…”
NHTSA complaint #11752742, 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 complaint #11679228, 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 i…”
NHTSA complaint #11475442, 2022

Equipment Adaptive/Mobility 3

“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 complaint #10702888, 2015

“WAS DRIVING ON 95N AROUND 65 MPH WHEN VEHICLE LOSES POWER !!! I WAS IN THE LEFT HAND LANE AND TRAFFIC WAS FLOWING. IT WAS BY THE GRACE OF GOD THAT I MADE IT TO THE RIGHT SHOULDER WITHOUT CAUSING A MAJOR ACCIDENT FOR MYSELF AS WELL AS FOR OTHER VEHICLES. THE ENGINE LIGHT CAME ON AND THE ANTI SKID AND ANTI SKID OFF LIGHTS CAME ON ALSO IT SAID CONSULT OWNERS MANUAL. THE VEHICLE IS BRAND NEW AND I NEVER WANT TO DRIVE IT AGAIN!!!. AFTER I STOPPED I CUT THE VEHICLE OFF AND RESTARTED THE VEHICLE TO TRY AND GET HOME. ON THE WAY HOME IT DID IT THREE MORE TIMES. I COULD HAVE KILLED MYSELF AND MY DAUGHTE…”
NHTSA complaint #10661372, 2014

“MY HUSBAND AND I JUST PURCHASED A 2014 MERCEDES E 350 CONVERTIBLE AND THE FIRST TIME I PLACED A STANDARD SIZE WATER BOTTLE IN THE CUP HOLDER IT FELL UNDER THE PEDALS ON THE FIRST TURN. THE CUP HOLDER ARE NOT SAFE TO USE FOR ANY CUPS OR BOTTLES. *TR”
NHTSA complaint #10551134, 2013

Lane Departure 3

“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 complaint #11676194, 2025

“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 th…”
NHTSA complaint #11470046, 2022

“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 complaint #11382839, 2020

Seat Belts 3

“The contact owns a 2014 Mercedes-Benz E350. The contact stated that while the vehicle was parked and occupied, the message that the seat belt was inoperable was displayed. A dealer was contacted. The vehicle was taken to the dealer where it was diagnosed, and determined that the seat belt pretensioner had failed. The seat belt pretensioner was replaced, and the vehicle was repaired. The manufacturer was notified of the failure and informed the contact there was no recall on the VIN related to the failure. The failure mileage was 86,600.”
NHTSA complaint #11680926, 2025

“I’m getting a pre-safe inoperative message on my dashboard all the time, the Mercedes dealership is telling me the driver side seat belt needs to be replaced. This is a safety issue. This vehicle has 40,000 miles on it and it’s a family car that was extremely expensive this is unacceptable, Mercedes should pay for the seat belt replacement.”
NHTSA complaint #11566421, 2023

“RATTLE/TICKING SOUND FROM DRIVER SIDE INTERIOR B PILLAR AREA. VERIFIED BY ROAD TEST WITH TECHNICIAN AT DEALERSHIP. DEALERSHIP REPLACED MULTIPLE SETS OF SEAT BELT HEIGHT ADJUSTER AS WELL AS SEAT BELT ASSEMBLY. ISSUES RETURNS WITHIN A WEEK OF REPAIRS. HIGHLY CONCERNED WITH THE RELIABILITY OF THIS VEHICLE'S SAFETY EQUIPMENT. *TR”
NHTSA complaint #10595220, 2013

Visibility 3

“The contact owns a 2014 Mercedes-Benz E350. The contact stated that while operating the vehicle, there was a loud creaking sound coming from the sunroof. The vehicle was taken to the local dealer, who diagnosed that the sunroof bolts had become unsecured and needed to be tightened. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the vehicle was not included in the Extended Warranty coverage related to the failure. The failure mileage was 50,000.”
NHTSA complaint #11676120, 2025

“The contact owns a 2014 Mercedes-Benz E350. The contact stated that while driving at an undisclosed speed, the sunroof made abnormal creaking noises while it was closed. The dealer was made aware of the failure; however, the vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure and a case was opened. The manufacturer advised the contact to file a complaint with NHTSA. The failure mileage was approximately 65,000.”
NHTSA complaint #11478585, 2022

“WHILE DRIVING EAST BOUND ON HWY20 A SMALL PIECE OF GRAVEL/ROCK HIT THE WINDSHIELD AND MADE A SMALL DING. OVER THE NEXT FEW DAYS A CRACK BEGAN TO FORM THAT BEGAN AT THE BASE OF THE WINDSHIELD AND SPREAD UP AND ANGLED ACROSS THE MIDDLE OF THE WINDSHIELD.”
NHTSA complaint #11092669, 2018

Engine And Engine Cooling 1

“The contact owns a 2014 Mercedes-Benz E-350. The contact stated that while the vehicle was parked and occupied, the contact heard an abnormal rattling sound coming from the engine that lasted for approximately 3 seconds when first started. An independent mechanic was contacted. The vehicle was taken to an independent mechanic, and the contact was informed that the failure was a common issue, and that the vehicle operated as designed. The contact stated that the failure might be related to the timing chain or the lifters. The contact stated that there were no issues while driving the vehicle, o…”
NHTSA complaint #11693801, 2024

Parking Brake 1

“The contact owns a 2014 Mercedes-Benz E350. The contact stated that the parking brake release failed to release as needed. The failure recurred several times however, the contact could not recall how the parking brake was released. On one occasion AAA released the parking brake however, the contact was unsure how the AAA mechanic was able to release the parking brake. The contact took the vehicle to a certified mechanic who diagnosed the vehicle and determined that the parking brake, and the brake cable had failed to disengage as designed and needed to be replaced. The vehicle was repaired. Th…”
NHTSA complaint #11509517, 2020