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2018 Mercedes-Benz GLC-Class

Trims, performance, features, fuel economy, safety and known problems — with the pros and cons against similar 2018 models.

Class: Small Sport Utility Vehicle 4WD
Body styles: 300 4matic 4dr SUV, 300 4matic Coupe, 350e 4matic 4dr SUV, 43 4matic 4dr SUV
Engines: 2.0L 4-cyl turbo, 3.0L 6-cyl turbo, 4.0L 8-cyl turbo
Drivetrain: 4-Wheel Drive, Rear-Wheel Drive
Fuel: Plug-in Hybrid, Premium Gasoline
MPG (best): 25 combined · 24 city / 28 hwy
Length: 183.5–186.2 in
Curb weight: 4,001–4,464 lb
NHTSA rating: Not rated
Recalls: 0 campaigns

Pros & cons

What's good

Plug-in hybrid version availableOffered as a plug-in hybrid as well as gas.
AWD / 4WD available
Few owner complaints1 complaints filed with NHTSA versus about 32 for similar models.
No recalls so far

Watch out for

Premium fuel requiredEvery gasoline version is rated for premium, which raises running costs.

Calculated from EPA, NHTSA and vPIC data against 15 similar 2018 models — not a review. How we calculate this →

Overview

The 2018 Mercedes-Benz GLC-Class is a small SUV offered with 3 engines (2.0L 4-cyl turbo, 3.0L 6-cyl turbo and 4.0L 8-cyl turbo), including a hybrid version and 4-wheel drive and rear-wheel drive.

It measures about 184 inches long and 74 inches wide on a 113-inch wheelbase, with a curb weight of roughly 4,001 lb (300 4matic 4dr SUV).

EPA rates its most efficient version at 25 MPG combined (24 city / 28 highway), 8% better than the 2018 small SUV average of 23.2 MPG, for an estimated $3,300 a year in fuel.

NHTSA has not published a 5-Star overall rating for this model year.

It has 0 recall campaigns on file and owners have filed 1 complaint with NHTSA since 2015, most often about the service brakes.

What changed for 2018

New plug-in hybrid version
Engine added: 4.0L 8-cyl turbo

Compared with 2017; trim, feature and price changes aren't covered. See the 2017 GLC-Class →

Dimensions & weight

Body	Length	Width	Height	Wheelbase	Track F / R	Curb weight	Weight F/R
300 4matic 4dr SUV	183.5 in	74 in	64.6 in	113 in	63.8 / 63.8 in	4,001 lb	53/47
300 4matic Coupe	186.2 in	74.4 in	63 in	113 in	63.8 / 63.8 in	4,046 lb	53/47
350e 4matic 4dr SUV	183.5 in	74 in	64.6 in	113 in	63.8 / 63.8 in	4,464 lb	50/50
43 4matic 4dr SUV	183.5 in	74 in	64.2 in	113 in	63.8 / 63.8 in	4,145 lb	53/47
43 4matic Coupe	186.2 in	74.4 in	63 in	113 in	63.8 / 63.8 in	4,189 lb	53/47

Transport Canada CVS (Open Government Licence – Canada), Canadian-market figures.

Will it fit your garage? Check with your measurements →

Engines, MPG & running costs

Version	Engine	Transmission	Drive	City / Hwy / Comb	vs. class	Fuel / yr	CO₂ g/mi
GLC350e 4matic Plug-in Hybrid	2.0L 4-cyl turbo	Automatic 7-spd	4-Wheel Drive	24 / 27 / 25	+8%	$3,300	235
GLC300	2.0L 4-cyl turbo	Automatic 9-spd	Rear-Wheel Drive	22 / 28 / 24	-4%	$3,400	364
GLC300 4matic	2.0L 4-cyl turbo	Automatic 9-spd	4-Wheel Drive	21 / 28 / 24	+3%	$3,400	374
GLC300 4matic Coupe	2.0L 4-cyl turbo	Automatic 9-spd	4-Wheel Drive	22 / 27 / 24	+3%	$3,400	375
AMG GLC43 4matic	3.0L 6-cyl turbo	Automatic 9-spd	4-Wheel Drive	18 / 24 / 20	-14%	$4,100	443
AMG GLC43 4matic Coupe	3.0L 6-cyl turbo	Automatic 9-spd	4-Wheel Drive	18 / 24 / 20	-14%	$4,100	438
AMG GLC63 4matic	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	16 / 22 / 18	-22%	$4,550	479
AMG GLC63 4matic Coupe	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	15 / 22 / 18	-22%	$4,550	493
AMG GLC63 S 4matic Coupe	4.0L 8-cyl turbo	Automatic 9-spd	4-Wheel Drive	15 / 22 / 18	-22%	$4,550	494

7/10EPA fuel economy score (best version)

9/10EPA greenhouse gas score

Spend $1,000Fuel over 5 years vs. average new car

23.2 MPG2018 Small Sport Utility Vehicle 4WD average

EPA estimates; "vs. class" is combined MPG against the 2018 EPA class average. How we calculate this →

Safety ratings & technology

NHTSA has not published 5-Star ratings for the 2018 Mercedes-Benz GLC-Class.

Similar 2018 small SUVs

Model	Best MPG / range	NHTSA overall	Recalls
2018 Mercedes-Benz GLC-Class (this car)	25 MPG	Not rated	0
2018 Porsche Cayenne	22 MPG	Not rated	1
2018 BMW X5	25 MPG	★★★★★	5
2018 BMW X3	25 MPG	Not rated	11
2018 Lexus RX	30 MPG	Not rated	2
2018 Porsche Macan	22 MPG	Not rated	6
2018 Lexus GX	16 MPG	Not rated	2

Recalls (0)

No vehicle recalls on file with NHTSA for the 2018 Mercedes-Benz GLC-Class.

Check your VIN for open recalls at NHTSA ↗

Not every 2018 Mercedes-Benz GLC-Class is affected — only a VIN check confirms your car.

Owner-reported problems

1Complaints to NHTSA since 2015

0Involved a crash

0Involved a fire

0Injuries reported

300 miTypical mileage at failure

Service Brakes1

Unverified owner reports; best-sellers collect more.

Used 2018 Mercedes-Benz GLC-Class buyer's checklist

Run the VIN at nhtsa.gov/recalls. No recalls on file, but check anyway.
Service Brakes — 1 owner reports. Brake firmly from speed; check for pulling, pulsing pedal or ABS warning light.
Mileage to watch. Owners typically reported problems around 300 miles; ask what was repaired near that point.
Hybrid system. Check for hybrid-system warning lights and ask whether the high-voltage battery has been replaced or is still under warranty.
Before you pay: service records, a history report and an independent inspection.

Generated by DecodedCars from NHTSA recalls and owner complaints for the 2018 Mercedes-Benz GLC-Class. Not a substitute for a professional inspection.

Other GLC-Class years

Compare all years →

Year	MPG (best)	Length	Overall	Complaints
2027 GLC-Class	27	192.1 in	Not rated	0
2026 GLC-Class	27	185.8 in	Not rated	0
2025 GLC-Class	27	185.8 in	Not rated	0
2024 GLC-Class	29	185.8 in	Not rated	0
2023 GLC-Class	28	186.2 in	Not rated	1
2022 GLC-Class	24	183.5 in	Not rated	0
2021 GLC-Class	25	183.5 in	Not rated	0
2020 GLC-Class	25	183.5 in	Not rated	0
2019 GLC-Class	25	183.5 in	Not rated	0
2017 GLC-Class	24	183.5 in	Not rated	13
2016 GLC-Class	24	183.5 in	Not rated	8

Sources: EPA, NHTSA, Transport Canada, Wikimedia Commons. Not affiliated with NHTSA, the EPA or Mercedes-Benz. How we calculate this →