2018 Mercedes-Benz E 400: Recalls, Problems & MPG
Here are the deets on the 2018 Mercedes-Benz E 400: 13 recalls, 23 owner complaints and up to 23 mpg combined.
Recalls
13 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Seats Vehicle recall #18V207000 · 2018 · 3,088 vehicles
What's wrong: The seatbacks of the front seats May not properly lock on the right side of the seat.
Why it matters: If the seatback does not properly lock, in the event of a crash, the seatbacks May fold forward, increasing the risk of injury.
The fix: Mbusa will notify owners, and dealers will inspect the locking of the seatbacks, replacing the seatbacks lock, as necessary, free of charge. The recall is expected to begin May 25, 2018.
Child seat Vehicle recall #18V513000 · 2018 · 39 vehicles
What's wrong: The child seat anchoring system (isofix) in these vehicles May not have been properly installed. As a result, in the event of a crash, the isofix console May partially detach from the car body.
Why it matters: If the isofix console partially detaches in a crash, it can increase the risk of injury for a child in a child seat.
The fix: Mbusa will notify owners, and dealers will inspect the isofix console, and replace it if necessary, free of charge. The recall began September 28, 2018.
Airbags Vehicle recall #18V515000 · 2018 · 345 vehicles
What's wrong: The occupant classification system (ocs) May not be properly calibrated, resulting in the front passenger air bag not being deactivated if a child seat is in the front seat.
Why it matters: If a child seat is in the front seat and the passenger air bag is not deactivated, in the event of a crash, it can increase the risk of injury.
The fix: Mbusa will notify owners, and dealers will replace the front passenger seat cushion, free of charge. The recall began November 26, 2018.
Steering Vehicle recall #18V850000 · 2018 · 6,373 vehicles
What's wrong: A locknut in the steering rack May break under high load, possibly causing the steering to become stuck in one position.
Why it matters: A car that cannot be properly steered has an increased risk of a crash.
The fix: Mbusa will notify owners, and dealers will replace the steering rack, free of charge. The recall began August 23, 2019.
Steering Vehicle recall #18V872000 · 2018 · 2 vehicles
What's wrong: The steering coupling May not have been correctly locked during manufacturing.
Why it matters: If the steering connection was not properly locked, the mechanical connection between the steering wheel and steering rack May come loose, reducing steering ability and increasing the risk of a crash.
The fix: Mbusa will notify owners, and dealers will inspect the steering coupling and lock it correctly if necessary, free of charge. The recall began January 18, 2019.
Seats Vehicle recall #19V130000 · 2019 · 22,637 vehicles
What's wrong: The seatbacks of the front seats May not properly lock on the right side of the seat.
Why it matters: If the seatback does not properly lock, in the event of a crash, the seatbacks May fold forward, increasing the risk of injury.
The fix: Mercedes will notify owners, and dealers will inspect the locking of the seatback on the affected vehicles and replace the seatback lock, as necessary, free of charge. An interim owner letter was mailed on April 12, 2019 to notify owners. Owners will receive a second notification when the remedy is…
Body & structure Vehicle recall #19V676000 · 2019 · 4,765 vehicles
What's wrong: 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.
Why it matters: If the spoiler detaches while driving, it can become a road hazard, increasing the risk of a crash.
The fix: 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.
Seat belts Vehicle recall #19V788000 · 2019 · 29,720 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2018 e400 wagon 4matic, e400 4matic, e43 amg 4matic, 2018-2019 e63s amg 4matic wagon, e63 amg 4matic wagon, e300, e300 4matic, glc63s coupe amg 4matic, 2019 cls450, cls450 4matic, cls53 amg 4matic, e450 wagon, e53 amg 4matic, glc300, glc63 amg coupe 4matic, g550 4matic, g63 amg, glc300 coupe 4matic, glc300 4matic, glc350e 4matic, glc43 amg coupe 4matic, glc43 amg…
Why it matters: The electric pre-safeâ®-function and the seat belt pretensioners May not deploy during a crash, increasing the risk of injury.
The fix: Mbusa will notify owners, and dealers will inspect the front seat belt buckles, replacing them as necessary, free of charge. The recall began March 13, 2020.
Electrical, Seat belts Vehicle recall #20V449000 · 2020 · 56 vehicles
What's wrong: Mercedes-benz USA, LLC. (mbusa) is recalling certain 2019 c300, c300 coupe, cls450, e450 coupe and s450, 2017-2019 e300, 2018 e400 coupe, e400 stationwagon, and 2018-2019 s560 vehicles that have previously had the instrument cluster replaced. The software in the replaced instrument cluster May cause the seat belt warning system to not operate properly, only displaying a solid warning light if either the driver or…
Why it matters: Without the audible tone and blinking warning light to remind the front seat occupants that their seat belts are not buckled, they May forget to buckle their seat belt, increasing their risk of injury in the event of a crash.
The fix: Mbusa will notify owners, and dealers will update the instrument cluster software, free of charge. The recall began September 8, 2020.
Electrical, Communication Vehicle recall #21V058000 · 2021 · 1,292,258 vehicles
What's wrong: Please refer to the part 573 report for specific vehicle model details. The software design of the communication module May fail to communicate the correct vehicle location for the emergency call system (ecall) in the event of a crash.
Why it matters: Failure of the ecall system May result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
The fix: 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.
Communication, Communication Vehicle recall #21V072000 · 2021 · 67 vehicles
What's wrong: On June 18, 2021, an additional 9 vehicles were added, including certain 2021 gla250, glc300, 2018 s450, e400, and 2017 cla250 vehicles. The communication module might have been inadvertently deactivated during a service visit, which could have disabled the emergency call (ecall) function.
Why it matters: A disabled ecall system would prevent a vehicle occupant from contacting emergency services through the call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.
The fix: Mbusa will notify owners, and dealers will inspect the communication module and activate it, if necessary, free of charge. The recall began March 31, 2021. Letters for the owners of the 9 additional vehicles were mailed July 9, 2021.
Backup camera Vehicle recall #22V232000 · 2022 · 126,443 vehicles
What's wrong: Please refer to mbusa's recall report for specific vehicle model details. The rearview camera May not display the rearview image due to a software error. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "rear visibility."
Why it matters: An inoperable rearview camera display reduces the driver's rear view, increasing the risk of a crash.
The fix: Dealers will update the rearview camera software, free of charge. Owner notification letters were mailed July 15, 2022.
Tires Vehicle recall #25V023000 · 2025 · 165 vehicles
What's wrong: The tires were incorrectly marked with the wrong maximum inflation pressure and May not meet the strength requirements for the stated pressure. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (fmvss) number 139, "new pneumatic radial tires for light vehicles."
Why it matters: Tires inflated to an incorrect maximum pressure May have insufficient strength, allowing the tires to fail and increasing the risk of a crash.
The fix: Dealers will inspect and replace the tires as necessary, free of charge. Owner notification letters were mailed March 7, 2025.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 2 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Other / unknown (6): the most common themes are stalls / loses power (3).
- Electrical (4): no single recurring theme in the descriptions.
- Engine (3): no single recurring theme in the descriptions.
- Steering (3): the most common themes are steering problems (3).
Complaints peaked in 2023 (4 filed that year). The typical problem showed up when the car was about 5 years old, at a median of 15,000 miles.
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.0 L 6-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 20 | 27 | 23 | Premium |
| 3.0 L 6-cyl turbo | Automatic 9-spd | Rear-Wheel Drive | 20 | 26 | 22 | Premium |
| 3.0 L 6-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 20 | 26 | 22 | Premium |
| 3.0 L 6-cyl turbo | Automatic 9-spd | 4-Wheel Drive | 20 | 25 | 22 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2018 Mercedes-Benz E 400.
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FAQ
Does the 2018 Mercedes-Benz E 400 have any recalls?
Yes. NHTSA lists 13 vehicle recalls for the 2018 Mercedes-Benz E 400. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2018 Mercedes-Benz E 400 problems?
Owners have filed 23 complaints with NHTSA. The most-reported areas are other / unknown (6), electrical (4), engine (3).
What gas mileage does the 2018 Mercedes-Benz E 400 get?
EPA ratings run up to 23 mpg combined (3.0 L, Automatic 9-spd), across 4 engine and transmission combos.
Where can I get a 2018 Mercedes-Benz E 400 repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.