Most common 2015 Mercedes-Benz E400 problems
Share of the 15 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Mercedes-Benz E400 complaints by model year
Best E400 years: 2015, 2017. Years to avoid: 2016. Compare all years →
2015 Mercedes-Benz E400 recalls (7)
Air bags › Frontal
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015-2016 E400 Coupe, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2011-2014 E350 Coupe, and 2012-2014 E350 Cabrio vehicles. An incorrect front passenger air bag may have been installed during a prior repair.
Remedy: Dealers will replace the front passenger air bag on the affected vehicles, free of charge. Owner notification letters were mailed on September 10, 2021. Owners may contact MBUSA customer service at 1-800-367-6372.
Communication
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2013-2017 vehicles due to a software fault that may cause the date and time for the emergency call system (eCall) to differ from the actual date and time, potentially relaying an inaccurate vehicle location.
Remedy: MBUSA has initiated an Over the Air (OTA) remote update. MBUSA will also notify owners, and dealers will check software for a successful OTA or update the communication module software as needed, free of charge.
Air bags › Frontal › Passenger side › Inflator module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2014 C250, C300 4Matic, C350, C63 AMG, E350 4Matic Coupe, E350 Cabrio, E350 Coupe, SLS AMG Cabrio, SLS AMG Coupe, 2014-2015 C250 Coupe, C350 4Matic Coupe, C350 Coupe, C63 AMG Coupe, GLK 350, GLK250 BlueTec 4Matic, GLK350 RWD, 2015-2017 E400 4Matic Coupe, E400 Cabrio, E400…
Remedy: MBUSA will notify owners, and dealers will replace the passenger frontal air bag module, free of charge. The recall began March 29, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
Air bags › Frontal
Mercedes-Benz USA, LLC. (MBUSA) is recalling these vehicles: 2014-2018 CLA250, CLA250 4Matic, CLA45 AMG 4Matic, 2015-2018 GLA250, GLA250 4Matic, GLA45 AMG 4Matic, C300 4Matic, C63S AMG, 2012-2014 C250, C350, C300 4Matic, E550 4Matic, 2013-2014 C63 AMG, 2012-2015 C250 Coupe, C350 Coupe, C63 AMG Coupe, 2013-2015 C350 4Matic…
Remedy: MBUSA will notify owners, and dealers will add sufficient grounding to the steering components, free of charge. The recall began in December 6, 2017. Owners may contact MBUSA customer service at 1-877-496-3691.
Steering › Electric power assist system
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2013-2015 SL550, 2013-2014 SL63 AMG, 2014-2016 E350, 2014 E350 Cabriolet, E350 Coupe, 2014-2015 S550, 2015 E350 Bluetec, 2015-2016 E400, 2016 E550 Coupe, and Maybach S600 vehicles manufactured August 23, 2012, to August 14, 2015.
Remedy: MBUSA will notify owners, and dealers will replace the electric power steering control unit, free of charge. The recall began October 13, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Structure › Body › Hood
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2013-2015 E350 Sedan, E350 4Matic Sedan, E350 4Matic Station Wagon, E400 Hybrid Sedan, CLS 550 CGI, and CLS550 4Matic, 2013-2014 E550 4Matic Sedan, 2013 E63 Sedan, E63 Station Wagon and CLS63, 2014-2015 CLS63 4Matic, E63 4Matic Sedan, E63 4Matic Sedan "S", and E63…
Remedy: MBUSA will notify owners, and dealers will attach four additional retaining clips to the rubber seal, free of charge. The recall began March 6, 2015. Owners may contact MBUSA customer service at 1-201-573-5339.
Show 1 more recall
Seat belts › Rear/other › Buckle assembly
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain model year 2015 E250 Diesel, E250 Blue Tec 4 Matic, E350 Sedan, E350 Sedan 4 Matic, E350 Wagon 4 Matic, E400 Sedan, E400 Sedan 4 Matic, E63 Sedan, and E63 Wagon vehicles manufactured October 8, 2014, to October 24, 2014.
Remedy: MBUSA will notify owners, and dealers will replace the double seat belt buckle, free of charge. The recall began February 2, 2015. Owners may contact MBUSA customer service at 1-800-367-6372.
NHTSA defect investigations
Federal safety investigators have looked into 2 possible defects involving the 2015 Mercedes-Benz E400:
Desiccated Air Bag Inflator Rupture
From 2000 through 2017, Takata produced millions of air bag inflators using two types of phase-stabilized ammonium nitrate ("PSAN") propellant -- propellant 2004 and propellant 2004L. After prolonged exposure to high temperature cycles and humidity, inflators using propellant 2004 can degrade, causing the propellant to burn too quickly when ignited.
Rear brake line failure
On April 10, 2020, NHTSA's Office of Defects Investigation (ODI) received a defect petition from Mr. Surjit Singh alleging premature corrosion of the rear brake lines in his 2013 Mercedes-Benz E350 sedan. The petitioner states that he was recently informed by a Mercedes dealer service department that his car had severely rusted brake lines that need[ed] to be replaced immediately at a cost of about $3300.
What 2015 Mercedes-Benz E400 owners say
Air bags
Tl* the contact owns a 2015 Mercedes Benz E400. While driving approximately 40 MPH, the vehicle was equipped with a distronic device that allowed the contact to stop the vehicle in the event of a crash. The contact stated that the device failed and caused the contact to crash into the rear of another vehicle. The air bags did not deploy. A police report was filed. The contact and the passenger sustained minor injuries, which required the contact to seek medical attention. The vehicle was towed to a tow lot and then to a dealer. The manufacturer was notified of the failure. The approximate failure mileage was 1,500.
Tl* the contact owns a 2015 Mercedes-Benz E400. The contact received notification of NHTSA campaign number: 17V627000 (air bags); however, the parts to do the repair were unavailable. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The dealer (Mercedes-Benz of wilmington, 3801 lancaster pike, wilmington, de) was contacted and confirmed that the parts were not available for the recall remedy. The manufacturer was made aware of the issue and was not able to confirm when the parts were to become available. The contact had not experienced a failure. VIN tool confirms parts not available.
Electrical system
Tl* the contact owns a 2015 Mercedes Benz E400. While driving approximately 40 MPH, the vehicle was equipped with a distronic device that allowed the contact to stop the vehicle in the event of a crash. The contact stated that the device failed and caused the contact to crash into the rear of another vehicle. The air bags did not deploy. A police report was filed. The contact and the passenger sustained minor injuries, which required the contact to seek medical attention. The vehicle was towed to a tow lot and then to a dealer. The manufacturer was notified of the failure. The approximate failure mileage was 1,500.
Went on a 2000 miles road trip and my blind spot monitoring systems and then my turn signals stopped working.
2015 Mercedes-Benz E400 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 3.0L 6-cyl turbo | 7-speed automatic | RWD | 20 / 29 / 23 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2015 Mercedes-Benz E400 a good car?
Based on 15 owner complaints filed with NHTSA, the 2015 E400 rates better than average: 45% fewer complaints than a typical year of the E400 at the same age. It is one of the best E400 years by this measure. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2015 Mercedes-Benz E400?
The air bags — 8 complaints, 53% of all complaints for this model year. Next are the electrical system (3) and speed control & acceleration (1).
How many recalls does the 2015 Mercedes-Benz E400 have?
There are 7 recalls for the 2015 Mercedes-Benz E400, the most recent from August 13, 2021 (frontal). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
What are the best and worst years of the Mercedes-Benz E400?
The best years by complaints, compared at the same age, are 2015 and 2017. Years to avoid or approach with caution: 2016. See the full Mercedes-Benz E400 years comparison.
At what mileage do 2015 Mercedes-Benz E400 problems happen?
The median mileage reported in complaints is about 15,000 miles; 67% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.