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2021 Mercedes-Benz GLC 300 4MATIC

All Mercedes-Benz GLC X253/C253 trims (2016–2022) → All Mercedes-Benz GLC generations →
2021 Mercedes-Benz GLC – front Unverified
Photo: 2020 Mercedes-Benz GLC 300 4MATIC in Polar White, front left by Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
Photos show the first generation (facelift) (X253/C253, 2016–2022); trim, color, and model year may differ.
All photo credits
  1. Photo: 2020 Mercedes-Benz GLC 300 4MATIC in Polar White, front left by Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  2. Photo: MERCEDES-BENZ GLC (X253) China (4) by Dinkun Chen, CC BY-SA 4.0, via Wikimedia Commons
  3. Photo: 2020 Mercedes-Benz GLC 300 4MATIC in Polar White, rear left by Mr.choppers, CC BY-SA 3.0, via Wikimedia Commons
  4. Photo: Mercedes-Benz GLC facelift rear by Jengtingchen, CC BY-SA 4.0, via Wikimedia Commons
  5. Photo: 2022 Mercedes-Benz GLC interior by deathpallie325, CC BY-SA 4.0, via Wikimedia Commons

The 2021 Mercedes-Benz GLC 300 4MATIC is a 255-hp 2.0-liter turbocharged inline-4 with a 9g-tronic 9-speed automatic and all-wheel drive. It starts at $45,200 MSRP and is rated at 23 mpg combined.

It makes 255 horsepower at 5,800 rpm and 273 lb-ft of torque at 1800–4000 rpm. EPA fuel-economy estimates are 21 mpg city and 28 mpg highway (23 mpg combined).

The GLC measures 183.3 inches long on a 113.1-inch wheelbase and has a curb weight of 3,977 lb.

Spec Value
Vehicle
PowertrainGas
Price
MSRP$45,200
MSRP with Destination$46,250
Destination Charge$1,050
Engine
Engine Type2.0L Inline-4 Turbo
Displacement1.991 L
Horsepower255 hp @ 5,800 rpm
Torque273 lb-ft @ 1800–4000 rpm
Drivetrain
Drive Type4MATIC All-Wheel Drive
Transmission
Transmission9G-TRONIC 9-Speed Automatic
Fuel Economy
City21 MPG
Highway28 MPG
Combined23 MPG
Dimensions & Weight
Length183.3 in
Width74.4 in
Height64.7 in
Wheelbase113.1 in
Curb Weight3,977 lbs

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Safety & Recalls

NCAP safety ratings

Overall ★★★★★
Frontal crash ★★★★★
Side crash ★★★★★
Rollover ★★★★★ (18.5 % risk)
Tested variant: 2021 Mercedes-Benz GLC SUV 4WD
Other tested variants (1)
  • 2021 Mercedes-Benz GLC SUV RWD: 5 ★ overall

Recalls

No recalls on file with NHTSA for the 2021 Mercedes-Benz GLC.

67 owner complaints to NHTSA for the 2021 Mercedes-Benz GLC

Owner Complaints

67 owner complaints filed with NHTSA for the 2021 Mercedes-Benz GLC (2 mention a crash, 2 a fire, 1 an injury). See all on nhtsa.gov

Most-cited areas
Engine30
Exterior Lighting13
Fuel/Propulsion System10
Electrical System8
Unknown Or Other7
Power Train4
A complaint can cite more than one area.
Most recent complaints
Oct 5, 2026 · Lane Departure Crash 1 injury
“The contact owns a 2021 Mercedes-Benz GLC 300. The contact stated while driving 10 MPH, the blind spot assist detection feature failed to function as intended. The contact stated while inspecting the…”
Sep 11, 2026 · Exterior Lighting
“I own a 2021 Mercedes-Benz GLC 300. The vehicle developed moisture/condensation in the headlamp, and the affected headlamp subsequently failed. I took the vehicle to RBM of Alpharetta, an authorized…”
Sep 10, 2026 · Exterior Lighting
“My vehicle is experiencing moisture intrusion caused by a defective headlight housing seal. The water intrusion has resulted in a short circuit and failure of the turn signal module within the…”
Sep 4, 2026 · Electrical System, Exterior Lighting
“My 2021 Mercedes-Benz GLC 300 is not currently included in NHTSA Recall 22V-261 / Mercedes-Benz Campaign 2022050005, but my vehicle is experiencing substantially the same defect described in that…”
Aug 30, 2026 · Power Train, Engine, Fuel/Propulsion System
“The vehicle is experiencing an intermittent, sudden, and life-threatening drop into "limp home mode" while driving, creating an severe speed differential with surrounding traffic.First Incident…”

Complaints are unverified reports submitted to NHTSA by owners. They cover the whole model year, not a specific trim, and a count alone doesn't show how common a problem is.

Source: US National Highway Traffic Safety Administration (nhtsa.gov), matched as 2021 MERCEDES-BENZ GLC. US-market vehicles only; data cached for up to 7 days.

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