Model year 2018 · Standard Sport Utility Vehicle 4WD

2018 Mercedes-Benz G-Class: recalls, fuel economy and safety ratings

EPA rates the 2018 Mercedes-Benz G-Class at 11–13 mpg combined across 4 versions. NHTSA lists 1 safety recall and 0 owner complaints for this model year.

Safety recalls

1

EPA combined mpg

11–13

NHTSA overall rating

—

Recall file dated Oct 27, 2026 · EPA file dated Sep 29, 2026 · updated Oct 27, 2026, 7:34 AM EDT

NHTSA lists this vehicle as AMG G63, AMG G65, G550.

Check your own car: enter your 17-character VIN at nhtsa.gov/recalls to see open recalls for that exact vehicle, and contact a Mercedes-Benz dealer to schedule the repair — safety recall repairs are free. The list below covers the whole model year, so not every recall applies to every car.

2018 Mercedes-Benz G-Class recalls

NHTSA's recall file lists 1 safety recall for the 2018 Mercedes-Benz G-Class, newest first.

Electrical system: Software and 1 more component

NHTSA 21V058000 Reported Feb 5, 2021
Filed by
Mercedes-Benz USA, LLC (manufacturer recall no. 2021020025)
Components
Electrical system: Software; Communication: Auto crash notification
Units affected
1,292,258 (estimate)
Problem
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. 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.
Risk
Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
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. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.

Full recall record on nhtsa.gov

Recall summaries are written by NHTSA from manufacturers' defect reports. Dates are when NHTSA received the report.

2018 Mercedes-Benz G-Class fuel economy by version

EPA city/highway/combined estimates for each engine, transmission and drive combination. Annual fuel cost is EPA's estimate for 15,000 miles a year (55% city, 45% highway) at EPA's current fuel-price assumptions; your cost will vary.

2018 Mercedes-Benz G-Class EPA fuel economy
VersionEngineTransmissionDriveFuelCity/Hwy/CombFuel cost/yrCO2 g/mi
AMG G635.5L 8-cyl turboAutomatic 7-spd4-Wheel DrivePremium12/15/13 mpg$6,300674
AMG G656.0L 12-cyl turboAutomatic 7-spd4-Wheel DrivePremium11/13/12 mpg$6,850762
G5504.0L 8-cyl turboAutomatic 7-spd4-Wheel DrivePremium13/14/13 mpg$6,300660
G550 4x44.0L 8-cyl turboAutomatic 7-spd4-Wheel DrivePremium11/11/11 mpg$7,450829

Source: FuelEconomy.gov (U.S. DOE and EPA), file dated Sep 29, 2026. Each version links to its FuelEconomy.gov record.

EPA estimates come from standardized lab tests so cars can be compared fairly; real-world mileage depends on speed, weather, load, tires and driving style.

2018 Mercedes-Benz G-Class crash-test ratings

NHTSA 5-Star Safety Ratings for the tested versions. More stars mean a lower chance of serious injury in that type of crash. Rollover risk is NHTSA's estimated chance of rolling over in a single-vehicle crash.

2018 Mercedes-Benz G-Class NHTSA 5-Star Safety Ratings
Tested vehicleOverallFrontalSideRolloverRollover riskForward collision warning
2018 Mercedes-Benz G-Class SUV AWDNot ratedNot ratedNot ratedNot rated—No

Source: NHTSA 5-Star Safety Ratings (New Car Assessment Program), checked Oct 26, 2026.

Star ratings compare vehicles of similar size and weight; a frontal rating for a large pickup is not directly comparable with one for a small car.

2018 Mercedes-Benz G-Class owner complaints

NHTSA's complaint files list no owner complaints for the 2018 Mercedes-Benz G-Class received since January 1, 2015.

Had a safety problem with your vehicle? You can report it to NHTSA at nhtsa.gov/report-a-safety-problem.

Other Mercedes-Benz G-Class model years

Mercedes-Benz G-Class by model year
YearCombinedRecallsComplaintsOverall rating
2027 G-Class15 mpg · 71 MPGe———
2026 G-Class15–18 mpg · 62 MPGe———
2025 G-Class15–18 mpg · 62 MPGe35—
2024 G-Class11–14 mpg———
2023 G-Class11–14 mpg56—
2022 G-Class14–16 mpg64—
2021 G-Class14–18 mpg89—
2020 G-Class14 mpg82—
2019 G-Class14 mpg136—
2017 G-Class11–13 mpg44—
2016 G-Class12–13 mpg43—
2015 G-Class13 mpg23—

All Mercedes-Benz G-Class years compared · Decode a VIN

Other 2018 Mercedes-Benz models

Sources

  • Recalls: NHTSA recall flat file (FLAT_RCL_POST_2010), dated Oct 27, 2026, plus a live check of api.nhtsa.gov in your browser.
  • Complaints: NHTSA consumer complaint flat files (COMPLAINTS_RECEIVED), counts only — we do not republish complaint text.
  • Crash tests: NHTSA 5-Star Safety Ratings API.
  • Fuel economy: FuelEconomy.gov vehicles file (U.S. DOE and EPA), dated Sep 29, 2026.
  • NHTSA, EPA and DOE do not endorse OpenVIN. Vehicle names identify vehicles only; OpenVIN is not affiliated with Mercedes-Benz.