Mercedes-Benz GLS III

Photo: Alexander Migl / Wikimedia Commons · CC BY-SA 4.0

The Mercedes-Benz GLS III (since 2019): dimensions, weights, reliability and the official figures of its 64 versions in the European Union, the United Kingdom, the United States, and Canada.

Model codes: X167

Dimensions, weights and capacity

Specification	Europe	North America	Wikipedia
Dimensions
Length	5,220–5,240 mm RDW	5,210 mm TC	5,207 mm
Width	2,030 mm RDW	1,960 mm TC	1,956–2,030 mm
Height	1,890–1,930 mm RDW	1,820 mm TC	1,850 mm
Wheelbase	3,140 mm RDW	3,130 mm TC	3,135 mm
Front track	1,667–1,705 mm ASTRA	1,670 mm TC	–
Rear track	1,690–1,746 mm ASTRA	1,690 mm TC	–
Weights and towing
Kerb weight	2,360–2,600 kg RDW	2,480–2,610 kg TC	2,410–2,415 kg
Mass in running order	2,460–2,700 kg RDW	–	–
Gross vehicle weight	3,230–3,395 kg RDW	–	–
Towing, braked trailer	3,300–3,500 kg RDW	–	–
Towing, unbraked trailer	750 kg RDW	–	–
Seats and space
Seats	6–7 RDW	–	–
Doors	5 RDW	–	–
Boot space	–	–	2,400 L
Fuel tank	–	–	90 L
Performance
Top speed	238–280 km/h RDW	–	227–280 km/h
Torque	500–850 Nm ASTRA	–	200–850 Nm

Tyre sizes (most common first): 275/50R20, 285/45R22, 275/45R21, 315/40R21, 275/50R21, 325/40R22, 285/40R23, 325/35R23

Ranges cover the generation’s versions and body styles; European and North American versions can differ. Sources: RDW type approvals (Netherlands), Transport Canada vehicle specifications, Wikipedia (en, de, fr, ja), ASTRA type approvals (Switzerland), Traficom type approvals (Finland). Wikipedia figures are used under CC BY-SA 4.0.

Reliability and owner reports

UK MOT: first-time pass rate by age

Age at test	Pass rate	UK average	Tests
3 years	89.1% (86.6–91.2)	92.2%	714

What the MOT finds

Area	This model	UK average, same ages
Tyres	24.2%	20.5%
Brakes	8.7%	10.6%
Visibility (glass, mirrors, wipers)	4.5%	5.6%
Lights and electrics	2.2%	4.1%
Suspension	1.4%	2.5%

First MOT test of each car per year in 2022–2024, from the DVSA’s anonymised test results; only ages with at least 500 tests are shown. The figure in brackets is the 95% confidence interval; green or red means clearly above or below the UK average. The second table shows how often an item was noted (defect or advisory) in each area, against the UK average for cars of the same ages. DVSA anonymised MOT tests (Open Government Licence)

Owner complaints to NHTSA (US)

134 complaints for model years 2020–2026. 13 crashes · 5 fires · 12 injuries

Electrical system 47
Driver assistance 33
Engine 27

Complaints are reported by owners and not checked by NHTSA; they are not adjusted for how many cars were sold, so popular models have more. NHTSA owner complaints

All 64 versions of the Mercedes-Benz GLS III

Show all 64 versions

European Union 39 versions

New cars registered in the EU (plus Norway and Iceland), from the European Environment Agency. Figures on the NEDC procedure until 2020 and on WLTP from 2021; versions are grouped by engine and power, with their number of registrations.

Years and version	Engine	Power	Fuel	Consumption (combined)	CO₂	EU registrations
2023–2025	3.0 L	270 kW (367 PS)	Hybrid	8.6–8.8 L/100 km WLTP	225–232 g/km	6,684
2021–2025	4.0 L	450 kW (612 PS)	Hybrid	12.8–13.4 L/100 km WLTP	291–308 g/km	3,477
2023–2025	3.0 L	230 kW (313 PS)	Hybrid	8.3–8.6 L/100 km WLTP	219–230 g/km	859
2023–2025	3.0 L	280 kW (381 PS)	Hybrid	10.7–11.1 L/100 km WLTP	246–255 g/km	1,226
2023–2025	4.0 L	380 kW (517 PS)	Hybrid	13.8–13.9 L/100 km WLTP	312–315 g/km	638
2025	3.0 L	270 kW (367 PS)	Diesel	8.7 L/100 km WLTP	227 g/km	203
2025	3.0 L	280 kW (381 PS)	Hybrid	10.7 L/100 km WLTP	243 g/km	188
2025	3.0 L	270 kW (367 PS)	Plug-in hybrid	8.6 L/100 km WLTP	226 g/km	84
2021–2025	4.0 L	410 kW (557 PS)	Hybrid	12.8–13.5 L/100 km WLTP	301–307 g/km	2,410
2025	3.0 L	280 kW (381 PS)	Plug-in hybrid	10.7 L/100 km WLTP	244 g/km	20
2021–2025	4.0 L	450 kW (612 PS)	Petrol	12.5–13.4 L/100 km WLTP	290–304 g/km	176
2025	3.0 L	280 kW (381 PS)	Plug-in hybrid	10.6 L/100 km WLTP	240 g/km	16
2025	4.0 L	380 kW (517 PS)	Plug-in hybrid	13.9 L/100 km WLTP	315 g/km	15
2025	3.0 L	–	Petrol	5.8 L/100 km WLTP	239 g/km	10
2021–2024	2.9 L	243 kW (330 PS)	Diesel	8.4–8.9 L/100 km WLTP	228–237 g/km	8,425
2021–2024	3.0 L	270 kW (367 PS)	Hybrid	10.3–10.6 L/100 km WLTP	242–246 g/km	1,036
2021–2024	4.0 L	360 kW (489 PS)	Hybrid	12.2–12.5 L/100 km WLTP	282–290 g/km	1,613
2024	3.0 L	270 kW (367 PS)	Petrol	–	240 g/km	12
2021–2023	2.9 L	210 kW (286 PS)	Diesel	8.5 L/100 km WLTP	224–227 g/km	1,429
2022	3.0 L	272 kW (370 PS)	Hybrid	–	253 g/km	21
2021	4.0 L	360 kW (489 PS)	Petrol	11.9 L/100 km WLTP	282 g/km	135
2021	3.0 L	270 kW (367 PS)	Petrol	10.8 L/100 km WLTP	244 g/km	49
2021	4.0 L	410 kW (557 PS)	Petrol	13.3 L/100 km WLTP	302 g/km	41
2019–2020	2.9 L	243 kW (330 PS)	Diesel	–	208–209 g/km	7,757
2019–2020	2.9 L	210 kW (286 PS)	Diesel	–	202–206 g/km	1,897
2020	4.0 L	360 kW (489 PS)	Hybrid	–	234 g/km	731
2020	4.0 L	450 kW (612 PS)	Hybrid	–	273 g/km	174
2019–2020	3.0 L	190 kW (258 PS)	Diesel	–	209 g/km	2,388
2019–2020	4.0 L	360 kW (489 PS)	Petrol	–	231–251 g/km	142
2020	3.0 L	270 kW (367 PS)	Hybrid	–	211 g/km	36
2020	4.0 L	410 kW (557 PS)	Hybrid	–	284 g/km	18
2020	4.0 L	360 kW (489 PS)	Diesel	–	202 g/km	15
2019–2020	4.7 L	335 kW (455 PS)	Petrol	–	278–280 g/km	150
2019–2020	3.0 L	245 kW (333 PS)	Petrol	–	243–251 g/km	200
2019	5.5 L	430 kW (585 PS)	Petrol	–	317 g/km	320
2019	2.9 L	250 kW (340 PS)	Diesel	–	147 g/km	70
2019	3.0 L	270 kW (367 PS)	Petrol	–	251 g/km	50
2019	4.0 L	410 kW (557 PS)	Petrol	–	258 g/km	24
2019	4.0 L	450 kW (612 PS)	Petrol	–	395 g/km	10

United Kingdom 14 versions

New cars on sale in the UK, from the Vehicle Certification Agency. NEDC figures until 2018 and WLTP figures after; years are the editions a version appeared in.

Years and version	Engine	Power	Fuel	Gearbox	Consumption (combined)	CO₂
2023–2026GLS 450 d 4MATIC	3.0 L	270 kW (367 PS)	Hybrid	9-speed automatic	7.7–9.1 L/100 km WLTP	201–239 g/km
2023–2026GLS 450 4MATIC	3.0 L	280 kW (381 PS)	Hybrid	9-speed automatic	10.0–11.7 L/100 km WLTP	227–266 g/km
2025–2026Maybach GLS 600	4.0 L	410 kW (557 PS)	Hybrid	9-speed automatic	13.7–14.0 L/100 km WLTP	310–316 g/km
2021–2026AMG GLS 63 4MATIC+	4.0 L	450 kW (612 PS)	Hybrid	9-speed automatic	11.4–13.5 L/100 km WLTP	286–306 g/km
2026AMG GLS 63 4MATIC+ · Maybach GLS 680	4.0 L	450 kW (612 PS)	Hybrid	9-speed automatic	13.7 L/100 km WLTP	312 g/km
2026Maybach GLS 680	4.0 L	450 kW (612 PS)	Hybrid	9-speed automatic	13.3 L/100 km WLTP	304 g/km
2024GLS 450 d 4MATIC	3.0 L	367 kW (499 PS)	Hybrid	9-speed automatic	7.8–9.1 L/100 km WLTP	204–238 g/km
2024GLS 450 4MATIC	3.0 L	381 kW (518 PS)	Hybrid	9-speed automatic	9.9–11.1 L/100 km WLTP	226–252 g/km
2024Mercedes-Maybach GLS 600	4.0 L	557 kW (757 PS)	Hybrid	9-speed automatic	13.7–14.0 L/100 km WLTP	310–316 g/km
2024Mercedes-AMG GLS 63 4MATIC+	4.0 L	612 kW (832 PS)	Hybrid	9-speed automatic	13.3–13.5 L/100 km WLTP	300–306 g/km
2020–2023GLS 400 d 4MATIC	2.9 L	243 kW (330 PS)	Diesel	9-speed automatic	7.7–9.7 L/100 km WLTP	210–252 g/km
2021–2023Maybach GLS 600 4MATIC	4.0 L	410 kW (557 PS)	Hybrid	9-speed automatic	11.9–13.4 L/100 km WLTP	295–305 g/km
2023Mercedes-Maybach GLS 600 4MATIC	4.0 L	410 kW (557 PS)	Hybrid	9-speed automatic	13.9–14.2 L/100 km WLTP	314–320 g/km
2023Mercedes-AMG GLS 63 4MATIC+	4.0 L	450 kW (612 PS)	Hybrid	9-speed automatic	13.3–13.5 L/100 km WLTP	300–306 g/km

United States 7 versions

Model years sold in the USA, from the EPA and the Department of Energy (fueleconomy.gov). MPG on the EPA test; litres per 100 km = 235.215 ÷ MPG.

Years and version	Engine	Fuel	Gearbox	Drive	Consumption (combined)	CO₂
2023–2027SIDI; Mild Hybrid	3.0 L	Hybrid	9-speed automatic	All-wheel drive	20–21 MPG (11.2–11.8 L/100 km) EPA	263–269 g/km
2022–2026SIDI; Mild Hybrid	4.0 L	Hybrid	9-speed automatic	All-wheel drive	15–18 MPG (13.1–15.7 L/100 km) EPA	309–365 g/km
2020–2022SIDI; Mild Hybrid	3.0 L	Hybrid	9-speed automatic	Four-wheel drive	20–21 MPG (11.2–11.8 L/100 km) EPA	257–269 g/km
2020–2021SIDI; Mild Hybrid	4.0 L	Hybrid	9-speed automatic	Four-wheel drive	16–18 MPG (13.1–14.7 L/100 km) EPA	303–347 g/km
2019SIDI	3.0 L	Petrol	9-speed automatic	Four-wheel drive	18 MPG (13.1 L/100 km) EPA	303 g/km
2019SIDI	4.7 L	Petrol	9-speed automatic	Four-wheel drive	16 MPG (14.7 L/100 km) EPA	355 g/km
2019SIDI	5.5 L	Petrol	7-speed automatic	Four-wheel drive	15 MPG (15.7 L/100 km) EPA	373 g/km

Canada 4 versions

Model years sold in Canada, from Natural Resources Canada fuel consumption ratings (5-cycle test).

Years and version	Engine	Fuel	Gearbox	Consumption (combined)	CO₂
2019–2026Sport utility vehicle: Standard	3.0 L	Petrol	9-speed automatic	11.0–13.2 L/100 km 5-cycle	257–312 g/km
2020–2026Sport utility vehicle: Standard	4.0 L	Petrol	9-speed automatic	13.0–15.6 L/100 km 5-cycle	302–365 g/km
2019Sport utility vehicle: Standard	4.7 L	Petrol	7-speed automatic	15.7 L/100 km 5-cycle	370 g/km
2019Sport utility vehicle: Standard	4.7 L	Petrol	9-speed automatic	15.1 L/100 km 5-cycle	355 g/km

Similar models from other brands

Official figures are measured on standard test procedures and differ between markets. Your consumption depends on how, where and in what conditions you drive.