Page 3 of 6 · complaints 101–150 of 278

2014 Mercedes-Benz E350 complaints

Owner reports filed with NHTSA about this vehicle, newest first and reproduced as filed. They are unverified accounts: one proves nothing, and a pattern across many is the thing worth reading. Back to the full 2014 record →

Service Brakes
Filed Jan 13, 2023NJ

I brought my car into Mercedes on 9/13/2022 and was told my brake lines and subframe were rusting. It's a 2014 with only 80k miles on it. I was told I had a year before it needed to be replaced/addressed. I brought the car in again on December 12, 2022 and they said on a scale of 1-10 the subframes and brake lines were a 7 and were a safety issue. After doing some research, I am clearly not the only owner of this model dealing with this issue. This is safety issue and should be recalled. Subframes and brake lines should not rust so quickly.

Structure › Frame and Members
Filed Jan 10, 202372,000 milesNJ

The contact’s wife owns a 2014 Mercedes-Benz E-350. The contact stated that while driving at various speeds, the rear of the vehicle was swerving. The contact stated while the brake pedal was depressed, the rear of the vehicle shifted. No warning light was illuminated. The vehicle was taken to the dealer where it was diagnosed that the rear subframe was rusted and needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure, but no assistance was provided. The contact was awaiting a response. The failure mileage was approximately 72,000.

Suspension
Filed Dec 23, 2022MD

I own a 2014 Mercedes-Benz E350, 4matic. that yeah car has approximately 64,500 miles on it. I recently Took it in for service and was advised that the rear subframe has a whole rusted through on the left side. The dealers advice was to replace the rear subframe. I was advised that it is not presently a safety issue, but it was going to be a safety issue as the rust continued. I was dubious about this advice, so I took the vehicle to a second dealer, who also identified the rust issue in the same area. Both dealer representatives advised that they had seen these issues before with the 350 class, and that there had been many complaints about them. I am aware that MB has replaced subframes on this group of cars in Germany and in Canada already—this is a well-known issue. The repair will cost between 3,800-5,000, but my real concern is that the subframe will fail and cause injury or death before it can be repaired. I do not believe this to be ordinary wear and tear as the car is relatively young, and rust is a very controllable problem with current vehicle technology. I am concerned that the scope of this problem is widespread, as both dealer representatives said that they had seen many cars with this issue. It needs to be recalled and repaired before people are injured or die.

Fuel/Propulsion System
Filed Dec 22, 2022FL

Very strong gas smell enters the cabin and surrounding exterior of the car after fill up. Seems to be a very common problem with this model and follows the same issues with previous years that were filed with the NHTSA and ultimately needed to be repaired by MB. The problem appears to be with the components of the fuel tank immediately under the rear seat. I am at the point where this has become a very dangerous hazard that consumers should know that the manufacturer should address and that consumers should not have to pay for repairs.

Engine
Filed Dec 13, 2022NY

I own a 2014 E350 mercedes benz the transmission was recalled a while back but long story short my car has all the same exact problems a lot of e350 owners are having with the conductor plate witch causes rough shifts between 1st and 3rd gear car went to Mercedes’ for more testing now I’ve got a 13000 dollar estimate and problem is even though the vin doesn’t show it was recalled for that reason the problem is spread world wide cuz my car only has 60000 miles and every one’s Mercedes’ is giving same exact problems not just mine so it has to be a recall

Service Brakes
Filed Dec 1, 2022MA

The car lost the brakes as I was driving. This was very sudden and there was no prior sensor indication. Upon inspection, it was discovered that the brake line broke and leaked the brake fluid as I was driving, causing the car to loose braking ability. Inspection of the brake line also showed severe rust in multiple parts of the brake line.

Service Brakes
Filed Nov 30, 202284,000 milesMD

Brake line to rear completely rusted through. Lost brake control while driving. Upon further inspection, the entire rear subframe has significant rust damage that warrants replacement.

Unknown or Other
Filed Nov 30, 2022NJ

Driver's side rear subframe has rusted to the point metal is split open. This was found during routine maintenance service at dealer. While braking the vehicle pulls to the left. If not replaced, wheel can fall off.

Structure › Body
Filed Nov 22, 2022MD

Our mechanic reports a dime-sized rust hole in the rear subframe.

Suspension
Filed Nov 22, 2022CT

--Rear sub-frame broken. Part is available upon request. --Rear of car swerved when turning and breaking, probably due to control arm dislocation. --Dealer is aware of problem and has in fact replaced many sub-frames. --The dealer has inspected the sub-frame and determined that it is broken. --No warnings prior to failure.

Suspension
Filed Nov 16, 2022CT

I was driving on the highway and braked for traffic ahead of me. My car swerved hard to the right; however, I got it under control and brought it into the Mercedes dealer as soon as they had an opening. Upon examination, the dealer told me that the sub-chassis had corroded and broken away, damaging the torsion bar and denting the gas tank. A search online quickly showed that this is a common issue with Mercedes, and in some countries, they have issued a recall. The dealer quoted $5,250 to fix the car. This easily could have been a tragedy on the road with a less experienced driver behind the wheel. Mercedes must issue a recall for the inspection and repair of all affected vehicles.

Fuel/Propulsion System
Filed Nov 8, 2022TX

On my way to work lady Tuesday 11/1/22 just a few blocks from my AT&T office I started smelling fuel. I thought it was an lad car next to me. Looking at the rear mirror I noticed a line of fuel following me. By the time I pulled a side and shut down the vehicle I lost the full tank. The vehicle was towed and is still at Mercedes Benz of Plano, Plano, TX. The tech said the orings had gone bad and the hose deteriorated. It seems very similar to this recall https://www.edmunds.com/car-news/2014-mercedes-benz-e350-recalled-for-fuel-line-problem.html I called Mercedes USA and opened CASE [XXX]. No reply yet. Fortunate the car didn’t catch on fire or someone thrower a cigarette while I was driving they downtown. Leaking fuel should not happen INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Suspension
Filed Oct 28, 2022PA

When I took my vehicle to the dealership for service to have it inspected, I was told that it would not pass inspection due to the corrosion of the rear subframe. They told me this is a serious safety issue and that they are seeing a lot of Mercedes, especially in the last year and a half, that have this issue. The repair will cost me $4,500, Mercedes does not cover the cost even though it is a major structural issue. The subframe should last the life of the vehicle which is only 8 years old/60,000 miles and has been garage kept with all recommended services done by the dealer. My life and and the life of others is at risk as if the subframe fails, it causes loss of control of the car. Mercedes will not issue a recall. Mercedes owners don't even know to look out for this problem. Why do they have air bag recall and braking system recall but not a recall for this as Mercedes Benz in the UK does??

Suspension
Filed Oct 25, 2022PA

Owned the car for only ONE winter season and it failed to pass a vehicle safety inspection required in my state for operation. Mechanic reported a rear subframe deteriorating from winter road salts and related weather conditions, and that this was a common issue for my car in these particular climates, but Mercedes refuses to cover the cost in the US, but is currently covering the cost of repair in Europe and Canada. This us ridiculous my car warranty will not cover it and I can’t afford $3500 to repair and replace. The vehicle only had 58,000 miles on it at the time of diagnosis. What’s worse is it could technically happen again even when repaired because the subframe lacks the special coatings needed for winter protection. Now my beautiful car is not safe and I’m subject to municipal fines and penalties. OUTRAGEOUS.

Structure › Body
Filed Oct 24, 2022MA

The rear sub-frame involving vehicle stability under braking and turning. A component that should remain attached to the vehicle has broken off due to corrosion. My vehicle is not that old that a key structural component of the car should break at the weld/attachment point. I have video of this defect. But its greater than 10MB and will not let me upload it is there an email I can send it to ?

Electrical System
Filed Oct 24, 2022CA

Speaker(s) caught fire and sent smoke into car while driving. Dealer recognized issue immediately and said they have seen this before a few times. Mercedes said car is not in warranty son they will not support approx. bill of $4,000. The issue was discussed in various forums by several owners. I would like to see that Mercdes act responsibly and address the issue appropriately. Smoke coming into car while driving is hazardous in addition to hindering visibility and potentially cause serious accidents. Please make sure that Mercedes is reprimanded and have them recall vehicles to address the issue.

Unknown or Other
Filed Oct 20, 2022CT

The 2014 E350 4matic was diagnosed by the Dealer with a cracked rear subframe. When I questioned that is this common with a 2014 model EClass they were not sure. Calling MB USA they felt there weren't any complaints. When I called 9 different dealers in the USA looking for a NEW subframe for the E-Class, the common response was we are receiving many calls about replacing the subframe due to issues / cracked frame/rust, etc. They were all surprised and felt this is odd that this model would have so many subframe issues. MBUSA denied any issues as far as any structural issues. Very odd that my 2014 with approx 100k miles (garaged all the time) has subframe issues.

Suspension
Filed Oct 18, 2022KY

In a routine oil change, Mercedes dealership reports poorly rusted subframe. 2014 E350 with 160,000.

Suspension
Filed Oct 10, 2022PA

2014 E350 with 41,000 miles. Rusted subframe and was informed that it represented unsafe and risky driving conditions. Reported this to manufacturer as, apparently, it is a very common problem with certain Mercedes classes. No recall and very expensive fix ($4500)! Not my idea of a safe and reliable car, as Mercedes likes to advertise. Consumers should not be responsible for manufacturing defects/ poor quality of materials used ..... and should definitely not be exposed to unsafe conditions when operating their vehicle!

Structure › Frame and Members
Filed Oct 3, 202297,000 milesMD

The contact owns a 2014 Mercedes-Benz E350. The contact had taken the vehicle to an independent mechanic and was informed that the subframe was rusted. A dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 97,000.

Engine
Filed Sep 30, 2022CA

I brought in my car to M1 Mercedes, Fremont, CA for service after “check engine” light was on and running rough on idle. I told them I started using ethanol (E85) fuel recently but my car is spec for that. The shop replaced spark plugs and ignition coils but the issue didn’t go away. While the car is parked overnight at the shop garage, on Jun 21, 2022, around 11pm, the engine exploded. The incident was caught on camera by the shop. The intake manifold was blown open. The car was tolled to Fletcher Jones Mercedes Fremont, CA (authorized Mercedes dealer) for diagnostic. However, they didn’t offer any solution or attempt to find out what caused the explosion. They offered to replace the intake manifold for $1200. I declined as I believe this is a serious safety issue. What happen if it explodes again? Since the cause of the explosion is not found and address. It could happen again anywhere, anytime. Fletcher Jones Fremont charged me $265 for labor and I tolled my car back home. I attempted to contact Mercedes USA via their website to alert them about this problem and seek resolution. However I never hear back from them. I hope you can help to look into this serious safety issue. Attached please find the blown intake picture and report from M1 Mercedes. I have the explosion video as well.

Suspension
Filed Sep 27, 2022NJ

Rear subframe crossmember that connects to rear suspension is cracked and rusted resulting in dangerous handling characteristics. Part is severely back-ordered due to volume of consumers facing this problem. When braking hard, car swerves to right and can cross lanes. While this part broke, the car is otherwise rust-free. Brakes have been recently updated. If this is a common complaint, there should be a recall. The severe parts back-order leads me to believe that there are significant failures in the field.

Suspension
Filed Sep 23, 2022DE

The subframe on this vehicle is broken I took it to an independent dealer and they said they have never seen anything like this on a car this old. The Mercedes dealer told me that it would cost me $5000 for them to fix it about 3 weeks ago but said it's rusting and beginning to crack. But never said it was something that needed to be addressed immediately. Upon further research it seems to be a common issue on this make and model on the right side. https://www.carproblemzoo.com/mercedesbenz/e350/2014/2014-mercedesbenz-e350-suspension-problems.php

Electrical SystemCrashFire
Filed Sep 20, 2022WI

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 that the car was on fire, she pulled over, taking advantage of the antilock brakes for the first time ever, striking some type of curb, ultimately not killing us, but we lost another speaker, and a tire and rim. I’m, needless to say, displeased with my expensive European wagon, but Mercedes’ does not consider melting and smoking speakers to be a safety issue. Look online, and you’ll see plenty of videos of people with the same issue.

Service Brakes
Filed Sep 8, 2022MD

This issue is pertaining to a 2014 E350 Mercedes Benz. The brake system is in jeopardy. The subframe has rotted and cracked. Mercedes Benz is aware that this is a problem for many of their vehicles. While the right side of the subframe is rusted and beginning to crack, the left side of the subframe is totally rusted and busted out. The vehicle is routinely brought to the Mercedes Benz dealership for maintenance visits. It was making cracking sound in 2021, we brought it in to be serviced for that reason on 11/23/21. This issue was not noted at that time. Mercedes Benz indicated the solution was a lube. The issue persisted post visit. The car is infrequently driven because the primary driver teleworks. We returned the car to the dealership for an assessment 8/6/2022 due to ongoing concerns for our safety. The first indicator that there was a problem was the unfamiliar cracking sound as if the car could snap in half, then hard pulling to the left when braking. There was never a warning light or any other indicator on the dashboard or otherwise. The owners initiated the visit to the Mercedes Benz dealership. Mercedes Benz reported that they did not see the rust when they assessed the car for the cracking sound in 11/2021, furthermore that the rust and deterioration happens rapidly. Had the right side of the subframe also rusted and rotted out, this could have resulted in a total loss of control over the vehicle and been needlessly catastrophic. Warning indicators necessary and r

Visibility › Sun/Moon Roof Assembly
Filed Aug 10, 202265,000 milesNY

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.

Service Brakes, Hydraulic › Foundation Components › Hoses, Lines/Piping, and Fittings
Filed Aug 9, 202262,000 milesMA

The contact owns a 2014 Mercedes-Benz E-350. The contact stated that the vehicle was leaking brake fluid. The brakes were inoperable. There were no warning lights illuminated. The vehicle was taken to the local dealer where the contact was informed that the brake lines were rusted. The vehicle was not repaired. The manufacturer was notified of the failure but no additional assistance was provided. The approximate failure mileage was 62,000. The contact has stated that the brakes lines were replaced at the owner's expense. The contact believes that the state that they live in as well as Mercedes which is held responsible for the erosion of the brake lines.

Unknown or Other
Filed Aug 8, 2022MD

The Rear Subframe Unit of this 2014 E-Class E212 is diagnosed as rusted and rotted out on this 8 year old vehicle. The poor quality of this part from Mercedes Benz is known to be an underlying, hidden risk factor to the stability of the vehicle. This is a hidden/underlying area of the vehicle, not visible to the driver/owners, that without cause, can break free from the main frame structure of the vehicle and create a stability factor when cornering and braking, causing swaying of the rear and owner panic when abruptly stopping. I had this vehicle serviced at Catonsville Mercedes-Benz since I purchased the vehicle on April 14, 2017. On my last visit on December 19, 2019 having only 40,051 miles. No physical evidence know to me during this inspection. The vehicle has been hardly used. My next service was done on July 28,2022, having only 49,250 miles. That's just 9,299 miles and just over 2 years later, no harsh weather conditions, and the dealership has confirmed that this subframe has rotted out and rusted nearly thru. The service writer informed me that this is a serious condition that can break apart and lead to a very serious accident. Depending on certain driving conditions, if this breaks apart unknowingly, can be catastrophic. Mercedes Benz advertised greatly the ultimate safety features of its products, only to be realized, that it has used poor quality galvanized steel on a major structure of its framework to save cost. Mercedes provides a 3 year/36,000 mile and a 5

Electrical System
Filed Aug 3, 2022IL

Car was being driven at secondary road speed (~40MPH). Engine suddenly began to spudder and misfire terribly. Came to a stop light engine was idled roughly. Accelerated from stop, when check engine light turned on. Car went into limp MODE at a very dangerous rail road crossing and left turn intersection. Without acceleration, family was in danger of being hit by train and incoming traffic. Took car to Mercedes mechanic. Faulty parts were the Camshaft Position Solenoid valve, ignition cool. Short circuit in one part caused blown ignition fuse and cascading mechanical problems and safety risks. Repair cost so far is $1,100. Concern is the placement of the faulty part. It is exposed to high heat in the motor compartment and poses a fire hazard as well as a personal injury hazard to the occupants and driver.

Electrical SystemFire
Filed Aug 1, 2022CA

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 Model# DL5938 DELPHI Q01 PN: 28335938 Bar Code# A21287056890128335938E1361307 I am unable to access the speakers that burned and let the smoke out. Kurt Kaufman

Suspension
Filed Jul 23, 2022VA

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.

Service Brakes
Filed Jul 20, 2022NY

Informed by local Mercedes dealer that the vehicle has severe rear brake line corrosion at 55K miles. Stated that the vehicle could suffer loss of braking power if the line(s) ruptured. This is unacceptable for a vehicle with this mileage. According to internet searches this is a widespread problem on 2014 models and earlier. Estimated cost to repair is $3600.

Power TrainCrash
Filed Jul 6, 202259,000 milesMA

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 on the Mercedes Benz forums to which this has also happened to. This issue applies to other Mercedes models ranging from 2010 all the way to 2016. Videos of the exact vehicle brought to an independent shop available upon request.

Electrical System
Filed Jun 23, 2022CA

My 2014 Mercedes E350 with 54k miles has a Harmon Kardon sound system. About 4 months ago there was static/popping sound from the rear deck speaker driver side. The radio was turned off but the static sound remained. The popping eventually went away. Today, the static sound came back along with plastic burning that filled the inside of the cabin. This is a safety concern that should be acknowledged as it can cause a fire or electrical shortage. The smoke and scent of burning plastic from the speaker can cause health issues, distract a driver, and lead to a potential fire. Please look into this matter and protect other drivers. Thank you.

Fuel/Propulsion System
Filed Jun 22, 2022TX

Fuel smell really strong & a huge fuel leak started on 6/20/2022. The fuel smell was so strong inside the the car I couldn't stay in it. It started leaking before I fueled up my vehicle. Wen to the back of the car and notice a huge puddle of gas. I didn't know anything about this recall until today. I've owed the car for three years. I hope that Mercedes will fix this issue. Very dangerous.

Fuel/Propulsion System
Filed Jun 21, 2022NC

Strong gas odor inside cabin,whenever gas tank is full I can smell gas for extended time period. May relate to faulty gas line under the back seat.

Electrical System
Filed Jun 20, 2022NY

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.

Service Brakes
Filed Jun 8, 2022CA

Brake booster starting to squel and squeak. Brakes Not feeling as firm Driver seat leather was torn at stitching.

Suspension
Filed May 25, 2022PA

During state inspection (Pennsylvania) I was told that the rear subframe was rusted. If this part failed the vehicle could become uncontrollable and crash. They are not able to repair this since so many other vehicles have this problem. They have no idea when they could get a replacement subframe. The car is 8 years old but very low mileage (~34,000). Do to the frequent occurrence of this problem (by their report) and potential safety issues, I believe this should prompt a recall.

Unknown or Other
Filed Apr 22, 2022VA

I want to report a structural issue with the Mercedes rear subframe rusting. Three Mercedes dealers told me that it is common but there is no recall. The mechanic told me that if this is not corrected the back wheel will fall off while you are driving. There are no warning lamps. Please help.

Suspension
Filed Apr 19, 2022MD

Rusted Rear Subframe presenting a safety hazard. Possible separation of suspension link could lead to loss of control. Brought the 2014 Mercedes Benz E350 (85000 miles) in to the local dealership today for spark plug replacement. Technician performed a visual inspection of the underside of the vehicle and found that the rear subframe had rusted completely through making the care unsafe to drive. Car has been driven in Maryland since new and never exposed to any extraordinary corrosive elements that you might find on roads in colder climates. Car is in otherwise excellent shape with no other visible rust and has never been involved in an accident. The failure of a major suspension component like this on a car in otherwise excellent condition leads me to believe that there is a defect in the manufacturing of the rear subframe component. A quick Google search shows that other Mercedes vehicles suffer from this same problem. NHTSA ID Number: 11456512 also reports the same problem on the same model car. I have not had the problem repaired yet as I am deciding on next steps. Replacement estimate is approximately $4000. If I have the work done, I will retain the old subframe for inspection by NHTSA.

Steering
Filed Apr 7, 2022FL

The Height adjustment of electric steering column adjustment sticks in adjustment position at the top limit stop. This has been fixed twice!

Unknown or Other
Filed Mar 13, 2022PA

The car was brought in for scheduled maintenance and they told me that my rear sub frame rusted out and had snapped. Car is only 7 years old, always garaged, basically a main part rusted out. Mercedes prides itself on durability and safety. There were no warning lights, alarms, nothing. Whenever I braked the rear end of the car would slide to the left and I had to try and adjust accordingly. Prior to bringing the car in for its maintenance I was reluctant to drive it on highways and at higher speeds. Now that I am aware of the problem, had the rear of the car given out while I was on a highway, I had the potential to roll over and possibly blown up had the gas tank been impacted. I researched the issue on Google and found many instances of others having the same issue, with the same part, luckily no one appears to have been killed as yet. As I mentioned this was never picked up during all the scheduled maintenance work, nor state inspections, all handled by this dealership. The dealership is in the process of replacing the part and all work associated with that replacement. I don't know if they kept the part or tossed it out, but will ask. No one else has seen the car or rusted part other than the dealership. I'm also sending you a copy of the letter I sent to he dealership and Mercedes-Benz Home Office.

Service Brakes
Filed Dec 28, 2021NY

Brake line failed the hard line. lost my brakes . Mercedez Ralley Motors of Roslyn N.Y said that it was normal rust . there was no warning before the failure.

Engine
Filed Oct 26, 2021CA

Mercedes Benz had a previous recall Campaign # 2009100001 which affected vehicles until 2012 and mine is a 2014 model E350. It has the same issue with Engine severely misfiring and jerky on the road as if it is going to STOP IN THE MIDDLE OF FREEWAY while driving and cause a SAFETY RISK for my family and others on the road. Specific component is Oil leaks from transmission wiring harness and ECM connector. The leak is from camshaft hall sensors and transmission drain plug. Mercedes Benz dealer in Pleasanton, CA has confirmed the issue after I paid $218 for diagnosis.

Fuel/Propulsion System
Filed Sep 13, 2021AZ

Severe gasoline leak smell inside and outside the vehicle. Smell is so bad as to make it impossible to stand next to the vehicle without gasping for air and watering eyes. Due to a fire hazard situation, car can not be parked inside the garage as there is a gas water heater installed in the vicinity. Fuel leak in the feed system has been a known problem in Mercedes vehicles in the past. A recall was even issued on E350, 2014 model (Recall # 15V792000). However, my vehicle was excluded from the recall on account of mfg. date not matching with the recall notice. But here we are same problem showing up in the vehicle even after so called fuel leak probe was closed. Took it to the dealer for diagnosis and repair was quoted to be $2297. That's an outrageous amount of money to repair a problem which should not have happened as part of regular wear and tear and is most certainly a fire-hazard and safety issue. My wife and kids ride in this vehicle several times a day and currently I can't let them in this car due to the fear of fire. I would kindly request you to reopen the fuel leak matter with Mercedes and look into the matter while I seek a reimbursement of the repair cost from Mercedes Corporate.

Structure › Body
Filed Jun 21, 2021MA

Mercedes Benz E350 2014 - Panoramic Sunroof rattling and squeaking noise/sound: This issue has been reported by many online, and it is a well known problem with E350. It starts with a little bit of squeak and metallic rattle noise here and there, and then after a year or so it is almost happening all the time as you drive the car. Dealer states that Sunroof Frame bolts have to be retorqued and loose bolts which rattle around have to be put back on. Estimated cost $712. If not a safety risk causing Pano sunroof to eventually fly off, it should definitely be a recall as many E350 owners have reported the same issue, and it is a manufacturer defect.

Power Train
Filed Apr 18, 2021AZ

SEAT TOOR COST 850 TO GET REPAIRED 1500 FOR A KEY PLUS PROGRAMMING SO REFICULAS

Air Bags
Filed Apr 14, 2021CT

TL* TAKATA RECALL. THE CONTACT OWNS A 2014 MERCEDES-BENZ E350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 19V010000 (AIR BAGS) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS UNAVAILABLE. THE CONTACT CALLED MERCEDES-BENZ OF DANBURY (100 FEDERAL RD, DANBURY, CT 06810, (203) 778-6333) WHERE IT WAS CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.

Air Bags
Filed Mar 23, 2021FL

TAKATA PASSENGER AIR BAG HAS STILL NOT BEEN REPLACED, NOR HAS A TIME FRAME BEEN ESTABLISHED. DRIVER AIR BAG SYSTEM WAS MODIFIED AND NOW THE STEERING WHEEL NO LONGER GOES UP & DOWN.

Reading these

NHTSA publishes every complaint as the owner wrote it and investigates only a fraction. Spelling, capitalisation and judgement are the filer’s own. What carries weight is repetition: the same component failing the same way across many filings, and whether the manufacturer eventually opened a recall for it.

Full record for the 2014 Mercedes-Benz E350 → · Every E350 year → · How the figures are calculated →