Most common 2017 Mercedes-Benz E400 problems
Share of the 20 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 →
2017 Mercedes-Benz E400 recalls (8)
Communication › Auto crash notification
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details.
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021.
Structure › Body
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 E450 4MATIC Wagon, 2017-2018 E400 4MATIC Wagon, and 2018-2019 E63S 4MATIC Wagon vehicles. The rear spoiler may detach.
Remedy: MBUSA will notify owners, and dealers will inspect and correct the mounting of the spoiler, as necessary, free of charge. The recall began October 18, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.
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.
Exterior lighting › Headlights
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2017 Mercedes-Benz E300 4Matic, E300, E43 AMG, and E400 vehicles. The headlight horizontal adjustment screws on these vehicles may not be properly sealed behind a non-removable sealing cap to keep headlights from being readjusted.
Remedy: MBUSA will notify owners, and dealers will retrofit the sealing caps for the headlights, free of charge. The recall is expected to begin in June 2018. 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.
Electrical system › Starter assembly
Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2015-2017 C300 4Matic, C300, CLA250, CLA250 4Matic and CLA45 AMG vehicles, 2017 C300 4Matic Cabrio, C300 4Matic Coupe, C300 Cabrio, C300 Coupe, E300, E300 4Matic, E400 4Matic Wagon, E43 AMG 4Matic, GLA250, GLA250 4Matic and GLC300 4Matic Coupe vehicles and 2016 C350e and…
Remedy: MBUSA will notify owners, and dealers will install an additional fuse in the electrical line to the starter, free of charge. The recall began August 31, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Show 2 more recalls
Air bags › Frontal › Passenger side › Inflator module
Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 CLA250, CLA250 4Matic, E400 Coupe, E400 4Matic Coupe, E550 Coupe, E400 Cabriolet, E550 Cabriolet, E300, E300 4Matic, E400 Wagon, GLA250, and GLA250 4Matic vehicles.
Remedy: MBUSA will notify owners, and dealers will replace the affected air bag modules, free of charge. The recall began March 2017. Owners may contact MBUSA customer service at 1-800-367-6372.
Structure › Frame and members › Underbody shields
Mercedes-Benz USA, LLC (MBUSA) is recalling certain model year 2017 E400 4Matic Coupe, E400 Convertible, E550 Coupe and E550 Convertible vehicles manufactured June 7, 2016, to September 8, 2016. On the affected vehicles, there may be insufficient clearance between the left catalytic converter and the composite underbody panel.
Remedy: MBUSA will notify owners, and dealers will inspect and replace the underbody panel, as necessary, free of charge. The recall began December 2016. Owners may contact Mercedes customer service at 1-800-367-6372.
NHTSA defect investigations
Federal safety investigators have looked into a possible defect involving the 2017 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.
What 2017 Mercedes-Benz E400 owners say
Air bags
Seat pressure sensor for supplemental restraint system (SRS) routinely fails. The system generates and error and disables the front passenger airbag. The condition clears when the vehicle is turned off. Sensors have been recalibrated multiple times. System still routinely fails.
This is a complaint about the lack of response by Mercedes Benz in replacing the defective Takata passenger airbag. My understanding is that Mercedes Benz has addressed only 35% of recalled models as opposed to Honda who has already responded to 85% of the recalled models, replacing the defective airbags in question. I called the daytona Mercedes Benz dealer when I received the recall notice in January 2019 requesting that the defective passenger airbag be replaced. They replied that the part was not available and would notify me when it would be available. As of two days ago, October 14, 2020 I had not heard from the dealer or from Mercedes Benz. Since then I have found documentation as to the danger of this airbag and how it has killed or injured hundreds of people. Are we expected to drive this car under these conditions? Does Mercedes Benz give a hoot about its customers? …
2017 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: Subcompact car.
Frequently asked questions
Is the 2017 Mercedes-Benz E400 a good car?
Based on 20 owner complaints filed with NHTSA, the 2017 E400 rates average: 15% 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 2017 Mercedes-Benz E400?
The air bags — 16 complaints, 80% of all complaints for this model year. Next are the seats (2) and wheels & tires (1).
How many recalls does the 2017 Mercedes-Benz E400 have?
There are 8 recalls for the 2017 Mercedes-Benz E400, the most recent from February 5, 2021 (auto crash notification). 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 2017 Mercedes-Benz E400 problems happen?
The median mileage reported in complaints is about 4,000 miles; 100% 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.