2014 Mercedes-benz E-class
The Verdict
The 2014 Mercedes-benz E-class has 300 owner complaints filed with NHTSA. The most reported issues are body (94 complaints) and electrical (88 complaints). With a Klunk Score of 43/100, it earns a "Proceed with Caution" rating. If you're shopping for a Mercedes-benz E-class, consider the 2021 model year which has 93% fewer complaints.
Safe Bet
The 2021 has 93% fewer complaints
View the 2021 Mercedes-benz E-class dashboard →
Klunk Score: Proceed with Caution
About average for complaint volume. Research the specific issues before buying.
How is this calculated?
The Klunk Score ranks this vehicle year against all others in our database based on total owner complaints filed with NHTSA. 100 = fewest complaints (top tier), 0 = most complained-about. Scores above 60 are better than average; below 40 means more problems than most.
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Under the Hood
Each number is a complaint. Darker = bigger problem.
| Year | Body | Brakes | Electrical | Engine | Transmission |
|---|---|---|---|---|---|
| 2002 | 16 | 4 | 17 | 8 | 3 |
| 2003 | 59 | 122 | 45 | 222 | 18 |
| 2004 | 48 | 71 | 18 | 334 | 12 |
| 2005 | 30 | 94 | 38 | 362 | 8 |
| 2006 | 48 | 64 | 36 | 357 | 31 |
| 2007 | 46 | 4 | 20 | 346 | 19 |
| 2008 | 62 | 5 | 21 | 130 | 8 |
| 2009 | 22 | 1 | 9 | 51 | 2 |
| 2010 | 72 | 15 | 112 | 39 | 16 |
| 2011 | 83 | 14 | 140 | 48 | 9 |
| 2012 | 46 | 21 | 105 | 54 | 7 |
| 2013 | 49 | 34 | 66 | 28 | 7 |
| 2014 | 94 | 50 | 88 | 58 | 10 |
| 2015 | 25 | 8 | 16 | 7 | 1 |
| 2016 | 30 | 5 | 35 | 12 | 6 |
| 2017 | 43 | 7 | 37 | 65 | 13 |
| 2018 | 33 | 4 | 11 | 14 | 4 |
| 2019 | 28 | 3 | 8 | 12 | 3 |
| 2020 | 11 | 0 | 1 | 7 | 1 |
| 2021 | 5 | 1 | 3 | 8 | 2 |
| 2022 | 9 | 2 | 2 | 5 | 2 |
| 2023 | 8 | 1 | 2 | 9 | 2 |
| 2024 | 9 | 1 | 9 | 5 | 0 |
By Category
By Severity
Worst Problems
Complaints
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 was leaking fuel and not hydraulic fluid we originally thought. Brake, suspension and fuel line corrosion repairs were quoted in excess of $4,000, which was a "great deal" according to them "because the subframe would already be removed and would make it much easier."
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.
Driving shaft malfunction.
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)
Brake line failure. Front section of the line that feeds the rear wheels leaked while traveling. Warning light came on. Purchased brake fluid and drove to local service provider. The rear section left to right above subframe was found to be rotted, but not leaking yet. Local service provider replaced front and rear brake lines.
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.
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).
UNKNOWN
Brake lines leaking because corrosion under frame from ABS module which is essential a safety aspect that should not be happening.
The contact owns a 2014 Mercedes-Benz E350. The contact stated that while driving at various speeds, and occasionally while starting the vehicle, the steering wheel seized, and the message “Power Steering Malfunction” was displayed. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 61,500.
Badly corroded rear brake lines requiring replacement on a rust free car. Noted by the dealer as recommending replacement at approximately 70,000 miles: THE REAR BRAKE LINES ARE SUPER RUSTED AND CORRODED. THE REAR BRAKE LINES NEED TO BE REPLACED BEFORE THEY RUPTURE OPEN AND ALL BRAKING ABILITY IS LOST. ALIGNMENT WILL HAVE TO BE DONE AFTER BRAKE LINES ARE REPLACED SINCE THE REAR SUB FRAME HAS TO BE REMOVED FROM THE VEHICLE SEE ALIGNMENT RECOMMENDATION FOR ALIGNMENT COST--------3 DAY ORDER TIME
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, only whenever the vehicle was first started. The contact stated that after the engine had warmed up to operating temperature, the sound was no longer heard. The vehicle was not repaired. The manufacturer was notified of the failure and advised the contact to report the failure to the NHTSA Hotline. The approximate failure mileage was 140,000.
2014 Mercedes e350 these models as well as those from2009-2015. Have recall on subframe but the brake lines rust out and deteriorate as mine has now done. If you go on line you tube etc. you will see the issue and all complaints. I had my subframe replaced under warranty at Mercedes of flemington. About 1 1/2 years ago. While it was being serviced they asked me if I wanted to replace brake lines for $1200 since they had this part out job would be easy. So this means Mercedes is well aware of the deterioration of these line the man at mb said the metal was inferior and this is result. On YouTube it was stated that individuals took mb to court or accountability for this but results were negative. Yet problem exists. If you breaks fail while driving it is very dangerous. Also I believe there is a recall for gas lines for my model 2014 manufactured from June and July. The brake lines on my vehicle are rusting as is gas tank. This also is dangerous condition should accidents occur the lines because compromised with rust can much easily rupture causing fuels to spew out causing possible explosive condition. I have pictures and can forward
Fuel smell in the rear of the car, it was checked by a indepent mechanic and the tank is leaking fuel. They said is the Fuel filter which is usually faulty in this model. It seems the car can catch fire according to the mechanig. No warnings of the leaking in the dashboard, only the strong smell.
The camshaft adjuster failure. Though I'm told safety is not in immediate danger, it's a very expensive fix that can cause other issues if left unpaired. It began subtly with strange noises, hesitation during start-up, inconsistent performance. I take meticulous care of this vehicle. Regular service. Genuine parts. Always handled with care. And yet, here I am, facing a repair bill that is not only shocking, but unjust. Especially for this to be a common problem. Not to mention the potential for severe engine damage if left unresolved. I’ve since learned that I am not alone. Many loyal Mercedes owners have faced the same issue; often at relatively low mileage, with little to no warning. This is not an isolated defect. It is a systemic issue with significant implications, not just for the vehicle, but for the trust your customers place in your brand. To say I’m disappointed is an understatement. I feel let down. Mercedes-Benz has always held a status. A great looking car. A great engineered car. And while this is a great looking car, it has a serious engineering flaw. German and Japanese engineered cars hold the standard and this must be fixed. A goodwill repair assistance, or a broader recall initiative would show some integrity.
vehicle rear brake lines are corroded and leaking, while no corrosion was observed on surrounding parts
Odometer Fraud. The contact purchased a 2014 Mercedes-Benz E350. The contact discovered a mileage discrepancy after the purchase. The vehicle was a private sale. At the time of purchase, the mileage was 109,550. It was later discovered that the mileage on the Title was approximately 300,000.
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.
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.
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 about their speakers melting due to overheating from the amplifier. He quickly searched the fuse box numbers and had me pull fuse #67 that disarmed the amp and speakers but allowed me to drive the car again. There is no warning and this is extremely dangerous due to a possible car fire. I am just thankful that my wife or children were not driving this car when this happened. I researched the problem more and I can't believe there has not been a serious recall for those amps that came with the car.
300 total