Car comparison

Mercedes-Benz GLK (X204) GLK 350 CDI V6vsMercedes-Benz GLS (X166) GLS 350d

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Mercedes-Benz GLK (X204)

GLK 350 CDI V6

231 hp2987 ccDieselAWDAutomaticTurbochargedSUV2010-2012

Mercedes-Benz GLS (X166)

GLS 350d

258 hp2987 ccDieselAWDAutomaticTurbochargedSUV2015-2019

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Mercedes-Benz GLS (X166) GLS 350d

Most powerful
258 hp
192 kW
Highest torque
620 Nm
457 lb-ft
Lowest combined fuel consumption
7.6 L/100 km
30.9 mpg US
37.2 mpg UK
Lowest city consumption
8.2 L/100 km
28.7 mpg US
34.4 mpg UK
Best estimated range
1,316 km
818 mi
Largest trunk
680 L
Best overall score
66/100
Best economy score
86/100
Best practicality score
93/100

Mercedes-Benz GLK (X204) GLK 350 CDI V6

Quickest 0-100 km/h
7.3 s
Fastest top speed
225 km/h
140 mph
Lightest
1,805 kg
3,979 lb
Best power-to-weight
128 hp/t
95 kW/t
7.8 kg/hp
Lowest highway consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Best performance score
55/100

Specification comparison

Specification comparison
Model	Mercedes-BenzGLK (X204)GLK 350 CDI V6	Mercedes-BenzGLS (X166)GLS 350d
Power	231hp172kW	258hp192kW
Torque	540Nm398lb-ft	620Nm457lb-ft
Curb weight	1,805kg3,979lb	2,380kg5,247lb
Gross weight	2,500kg5,512lb	3,250kg7,165lb
Top speed	225 km/h 140 mph	222 km/h 138 mph
To 99% top speed	87.0s99% target: 223 km/h / 138 mph Calculated	104.7s99% target: 220 km/h / 137 mph Calculated
0-100 km/h	7.3s	7.8s
0-200 km/h	35.7s Calculated	43.6s Calculated
0-60 mph	6.9s Calculated	7.3s Calculated
Fuel consumption	8.4L/100 km28mpg US33.6mpg UK	7.6L/100 km30.9mpg US37.2mpg UK
Fuel consumption city	10.6L/100 km22.2mpg US26.6mpg UK	8.2L/100 km28.7mpg US34.4mpg UK
Fuel consumption highway	7.1L/100 km33.1mpg US39.8mpg UK	7.2L/100 km32.7mpg US39.2mpg UK
Quarter mile	15.3s Calculated	15.7s Calculated
Power-to-weight	128hp/t95kW/t58hp/1000 lb Calculated	108hp/t81kW/t49hp/1000 lb Calculated
Torque-to-weight	299Nm/t200lb-ft/ton Calculated	261Nm/t174lb-ft/ton Calculated
Estimated range	786km488mi Calculated	1,316km818mi Calculated
Displacement	2,987cc182cu in	2,987cc182cu in
Length	4,525mm178in	5,130mm202in
Width	1,840mm72in	1,934mm76in
Height	1,698mm67in	1,850mm73in
Wheelbase	2,755mm108in	3,075mm121in
Front track	1,567mm62in	1,655mm65in
Rear track	1,588mm63in	1,675mm66in
Ground clearance	201mm8in	-
Trunk volume	450L	680L
Max trunk volume	1,550L	2,300L
Doors	5	5
Seats	5	5
Fuel tank	66L	100L
CO2 emissions	-	199g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Mercedes-Benz GLK (X204) GLK 350 CDI V6Mercedes-Benz GLS (X166) GLS 350dPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Mercedes-BenzGLK (X204)GLK 350 CDI V6	3,800 rpm	1,600-2,400 rpm	4,050 rpm
Mercedes-BenzGLS (X166)GLS 350d	3,400 rpm	1,600-2,400 rpm	3,650 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Mercedes-BenzGLK (X204)GLK 350 CDI V6	Mercedes-BenzGLS (X166)GLS 350d
	Acceleration checkpoints
0-60 mph 0-97 km/h	6.9 s	7.3 s
0-100 km/h 0-62 mph	7.3 s	7.8 s
0-200 km/h 0-124 mph	35.7 s	43.6 s
Top speed	225 km/h 140 mph	222 km/h 138 mph
	Drag race simulation
60 ft 18 m	2.4 s	2.4 s
330 ft 101 m	6.6 s	6.6 s
1/8 mile 201 m	9.9 s	10.1 s
1000 ft 305 m	12.8 s	13.1 s
1/4 mile 402 m	15.3 s	15.7 s
Trap speed 1/4 mile 402 m	149 km/h 93 mph	143 km/h 89 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	231 hp 172 kW
Mercedes-BenzGLS (X166)GLS 350d	258 hp 192 kW

Mercedes-Benz GLS (X166) GLS 350d has 27 hp more than Mercedes-Benz GLK (X204) GLK 350 CDI V6.

The biggest power difference is between Mercedes-Benz GLK (X204) GLK 350 CDI V6 and Mercedes-Benz GLS (X166) GLS 350d: 27 hp (20 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	540 Nm 398 lb-ft
Mercedes-BenzGLS (X166)GLS 350d	620 Nm 457 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	1,805 kg 3,979 lb
Mercedes-BenzGLS (X166)GLS 350d	2,380 kg 5,247 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	225 km/h 140 mph
Mercedes-BenzGLS (X166)GLS 350d	222 km/h 138 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	7.3 s
Mercedes-BenzGLS (X166)GLS 350d	7.8 s

Although Mercedes-Benz GLS (X166) GLS 350d has more power, Mercedes-Benz GLK (X204) GLK 350 CDI V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Mercedes-Benz GLK (X204) GLK 350 CDI V6 and Mercedes-Benz GLS (X166) GLS 350d: 0.5 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	8.4 L/100 km 28.0 mpg US 33.6 mpg UK
Mercedes-BenzGLS (X166)GLS 350d	7.6 L/100 km 30.9 mpg US 37.2 mpg UK

The biggest fuel consumption difference is between Mercedes-Benz GLS (X166) GLS 350d and Mercedes-Benz GLK (X204) GLK 350 CDI V6: 0.8 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	128 hp/t 95 kW/t 7.8 kg/hp
Mercedes-BenzGLS (X166)GLS 350d	108 hp/t 81 kW/t 9.2 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
Vehicle	Value
Mercedes-BenzGLK (X204)GLK 350 CDI V6	786 km 488 mi
Mercedes-BenzGLS (X166)GLS 350d	1,316 km 818 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Mercedes-BenzGLK (X204)GLK 350 CDI V6	231 hp 172 kW	7.3 s	225 km/h 140 mph
Mercedes-BenzGLS (X166)GLS 350d	258 hp 192 kW	7.8 s	222 km/h 138 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Vehicle

Performance score

Practicality score

Mercedes-BenzGLK (X204)GLK 350 CDI V6

Power	231 hp 172 kW
0-100 km/h	7.3 s
Top speed 225 km/h 140 mph

Doors/seats	5 doors 5 seats
Trunk	450 L 15.9 cu ft
Length	4,525 mm 178.1 in
Height	1,698 mm 66.9 in

Mercedes-BenzGLS (X166)GLS 350d

Power	258 hp 192 kW
0-100 km/h	7.8 s
Top speed 222 km/h 138 mph

Doors/seats	5 doors 5 seats
Trunk	680 L 24.0 cu ft
Length	5,130 mm 202.0 in
Height	1,850 mm 72.8 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Vehicle

Performance score

Fuel economy score

Mercedes-BenzGLK (X204)GLK 350 CDI V6

Power	231 hp 172 kW
0-100 km/h	7.3 s
Top speed 225 km/h 140 mph

8.4 L/100 km

28.0 mpg US

33.6 mpg UK

Mercedes-BenzGLS (X166)GLS 350d

Power	258 hp 192 kW
0-100 km/h	7.8 s
Top speed 222 km/h 138 mph

7.6 L/100 km

30.9 mpg US

37.2 mpg UK

Mercedes-Benz GLK (X204) GLK 350 CDI V6 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
Vehicle	Fuel consumption, L/100 km	0-100 km/h, s
Mercedes-BenzGLK (X204)GLK 350 CDI V6	8.4 L/100 km 28.0 mpg US 33.6 mpg UK	7.3 s
Mercedes-BenzGLS (X166)GLS 350d	7.6 L/100 km 30.9 mpg US 37.2 mpg UK	7.8 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
Vehicle	Power-to-weight, hp/t	Fuel consumption, L/100 km
Mercedes-BenzGLK (X204)GLK 350 CDI V6	128 hp/t 95 kW/t 7.8 kg/hp	8.4 L/100 km 28.0 mpg US 33.6 mpg UK
Mercedes-BenzGLS (X166)GLS 350d	108 hp/t 81 kW/t 9.2 kg/hp	7.6 L/100 km 30.9 mpg US 37.2 mpg UK

Detailed score breakdown

Vehicle

Mercedes-BenzGLK (X204)GLK 350 CDI V6

Mercedes-BenzGLS (X166)GLS 350d

Power

231 hp

172 kW

258 hp

192 kW

Torque

540 Nm

398 lb-ft

620 Nm

457 lb-ft

Acceleration

7.3 s

7.8 s

Top speed

225 km/h

140 mph

222 km/h

138 mph

Lightness

1,805 kg

3,979 lb

2,380 kg

5,247 lb

Fuel consumption

8.4 L/100 km

28.0 mpg US

33.6 mpg UK

7.6 L/100 km

30.9 mpg US

37.2 mpg UK

Practicality

Doors/seats	5 doors 5 seats
Trunk	450 L 15.9 cu ft
Length	4,525 mm 178.1 in
Height	1,698 mm 66.9 in

Doors/seats	5 doors 5 seats
Trunk	680 L 24.0 cu ft
Length	5,130 mm 202.0 in
Height	1,850 mm 72.8 in

Range score

786 km

488 mi

1,316 km

818 mi

CO2 score

199 g/km

Trunk score

450 L

15.9 cu ft

680 L

24.0 cu ft

Power-to-weight score

128 hp/t

95 kW/t

7.8 kg/hp

108 hp/t

81 kW/t

9.2 kg/hp

Overall

Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Average annual distanceDistance unitFuel price in your local currencyPrice unit

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
Vehicle	Mercedes-Benz GLK (X204) GLK 350 CDI V6	Mercedes-Benz GLS (X166) GLS 350d
Consumption	8.4 L/100 km28 mpg US33.6 mpg UK	7.6 L/100 km30.9 mpg US37.2 mpg UK
Cost / 100 km	14.70 LC100 km	13.30 LC100 km
Cost / 100 mi	23.66 LC100 mi	21.40 LC100 mi
Annual fuel used	1,260 L333 US gal277 UK gal	1,140 L301 US gal251 UK gal
Annual fuel cost	2,205 LC/year	1,995 LC/year