MotorDeets

2018 Mercedes-Benz Amg GLS63: Recalls, Problems & MPG

Here are the deets on the 2018 Mercedes-Benz Amg GLS63: 3 recalls, 2 owner complaints and up to 15 mpg combined.

3vehicle recalls
2owner complaints
0mention a crash
15best combined mpg
2018 Mercedes-Benz Amg GLS63
Photo: Chanokchon · CC BY-SA 4.0 · Wikimedia Commons. Representative photo of this generation; trim may differ.

Recalls

3 vehicle recalls from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.

Brakes (hydraulic) Vehicle recall #18V539000 · 2018 · 9,044 vehicles

What's wrong: The rear brake caliper pistons on these vehicles May not have been correctly coated, causing gas to become temporarily released into the rear brake hydraulic circuit, reducing braking performance.

Why it matters: Reduced braking performance can increase the risk of a crash.

The fix: Mbusa will notify owners, and dealers will bleed the rear axle brake system, free of charge. The recall began September 14, 2018.

Communication, Electrical 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, Electrical Vehicle recall #22V365000 · 2022 · 242,722 vehicles

What's wrong: Please refer to mbusa's recall report for specific vehicle model details. An error in the communication module's sim card software can cause a mobile network connection failure, disabling the emergency call (ecall) system.

Why it matters: A disabled ecall system would prevent a vehicle occupant from contacting the emergency services call center in an emergency, potentially delaying emergency responders and increasing the risk of injury.

The fix: The communication module software will be updated through an over-the-air (ota) update or by a dealer, free of charge. Owner notification letters were mailed July 8, 2022. Owner notification letters will be mailed in phases, on July 8, 2022, May 17, 2024, July 29, 2024, and September 27, 2024.

Most-reported problems

Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.

Brakes1
Other / unknown1

What owners describe

The 2018 Mercedes-Benz Amg GLS63 has 2 owner complaints, ranking #1 of 7 Amg GLS63 model years for complaints (1.8× the average Amg GLS63 year). Neighboring years: 2017 (1 complaints, 7 recalls), 2019 (2 complaints, 2 recalls).

Engines & fuel economy (EPA)

EngineTransmissionDriveCityHwyComb.Fuel
5.5 L 8-cyl turboAutomatic 7-spd4-Wheel Drive131815Premium

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 Amg GLS63.

eManualOnline Download (PDF), keep forever

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Mitchell 1 DIY Online access, factory-level data

Pro-shop repair procedures, wiring diagrams and TSBs for your exact car.

From $19.99/mo · $39.99/yr
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ALLDATAdiy Online access, factory OEM info

OEM procedures, specs and recall/TSB info, the same source many shops use.

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Haynes Print book or AllAccess online

Step-by-step photos written from a real teardown. Great for first-timers.

Books ~$30–$40 · AllAccess $34.99/mo
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FAQ

Does the 2018 Mercedes-Benz Amg GLS63 have any recalls?

Yes. NHTSA lists 3 vehicle recalls for the 2018 Mercedes-Benz Amg GLS63. 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 Amg GLS63 problems?

Owners have filed 2 complaints with NHTSA. The most-reported areas are brakes (1), other / unknown (1).

What gas mileage does the 2018 Mercedes-Benz Amg GLS63 get?

EPA ratings run up to 15 mpg combined (5.5 L, Automatic 7-spd), across 1 engine and transmission combos.

Where can I get a 2018 Mercedes-Benz Amg GLS63 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.

Other Amg GLS63 years

2017201820192020202120222026