Mercedes-Benz GLK vs. BMW Z4 MPG

Chart is based on 36 fuel economy reports for the Mercedes-Benz GLK and 87 fuel economy reports for the BMW Z4.

Mercedes-Benz GLK MPG

Year	Body/Powertrain	flat, hilly, or mountainousLand	driving style: very light to "lead foot"Foot	A/C use: none to heavyA/C	constant stop and goTraf %	many stops per mileCity %	stop every mile or twoSub %	fairly steady speedHwy %	Hwy Spd	MPG
2013	4dr SUV turbocharged 200hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	7	53	40	73	35.0
2013	4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	flat	med	hvy	0	0	5	95	110	36.8
2013	4dr SUV 302-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	v.lt	hvy	0	0	100	0	0	22.7
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	hills	med	none	0	9	9	83	84	22.9
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	flat	light	light	8	23	45	24	66	21.8
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	flat	light	light	11	17	24	48	93	18.7

Return to top

This page shows only averages. See all the Mercedes-Benz GLK fuel economy data.

BMW Z4 MPG

Year	Body/Powertrain	flat, hilly, or mountainousLand	driving style: very light to "lead foot"Foot	A/C use: none to heavyA/C	constant stop and goTraf %	many stops per mileCity %	stop every mile or twoSub %	fairly steady speedHwy %	Hwy Spd	MPG
2011	2dr Hardtop conv. turbocharged 335hp 3.0L I6 7-speed automated manual RWD	hills	med	light	0	20	35	45	70	22.8
2010	2dr Hardtop conv. turbocharged 300hp 3.0L I6 7-speed automated manual RWD	flat	med	light	5	15	60	20	80	24.0
2010	2dr Hardtop conv. turbocharged 300hp 3.0L I6 6-speed manual RWD	flat	lead	light	3	0	20	77	72	24.7
2009	2dr Hardtop conv. turbocharged 300hp 3.0L I6 7-speed automated manual RWD	hills	med	hvy	10	5	67	19	120	19.6
2009	2dr Hardtop conv. 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	9	9	27	55	70	26.5
2008	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	flat	light	light	0	0	0	100	73	27.4
2008	2dr Convertible 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	none	0	10	10	80	100	24.2
Looking for a warranty? Get a quote.
2008	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	17	3	6	75	75	29.8
2007	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	flat	med	none	8	22	28	42	65	20.0
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	lead	light	8	15	8	69	68	26.6
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	12	16	25	47	72	26.7
2007	2dr Convertible 330-horsepower 3.2L I6 6-speed manual RWD	flat	lead	none	50	17	7	27	75	18.0
2007	2dr Convertible 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	7	22	47	25	60	25.7
2007	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	hvy	1	4	25	70	70	30.6
2006	2dr Hatch 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	light	none	0	15	60	25	70	28.2
2006	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	10	10	30	50	65	26.7
2006	2dr Convertible 330-horsepower 3.2L I6 6-speed manual RWD	flat	med	none	8	46	25	20	78	17.7
2006	2dr Convertible 255-horsepower 3.0L I6 6-speed shiftable automatic RWD	flat	med	hvy	0	0	45	55	60	27.0
2006	2dr Convertible 255-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	2	28	38	32	70	25.2
2006	2dr Convertible 215-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	7	13	25	55	74	27.4
2005	2dr Convertible 225-horsepower 3.0L I6 5-speed shiftable automatic RWD	hills	med	light	1	1	23	75	65	28.1
2005	2dr Convertible 184-horsepower 2.5L I6 5-speed shiftable automatic RWD	flat	lead	hvy	15	25	18	43	60	21.4
2005	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	hills	light	none	10	40	30	20	65	23.0
2004	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	flat	med	none	4	20	55	21	67	26.8
2004	2dr Convertible 184-horsepower 2.5L I6 5-speed shiftable automatic RWD	flat	med	hvy	0	0	33	67	70	27.0
2004	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	flat	light	none	0	10	80	10	65	29.1
2003	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	flat	med	light	8	8	30	53	70	27.2
2003	2dr Convertible 225-horsepower 3.0L I6 6-speed automated manual RWD	flat	light	light	10	20	50	20	60	26.8
2003	2dr Convertible 225-horsepower 3.0L I6 5-speed shiftable automatic RWD	flat	med	light	20	20	20	40	60	25.6
2003	2dr Convertible 184-horsepower 2.5L I6 6-speed automated manual RWD	flat	light	light	8	5	20	68	70	34.4
2003	2dr Convertible 184-horsepower 2.5L I6 5-speed manual RWD	flat	med	none	2	7	31	60	77	26.1

Return to top

This page shows only averages. See all the BMW Z4 fuel economy data.

See TrueDelta's information for all SUVs

See TrueDelta's information for all Mercedes-Benz models and BMW models.

TrueDelta Reviews the Real Gas Mileage of the Mercedes-Benz GLK

Mercedes-Benz GLK Real Gas Mileage: Pros
Year	Comment
2013	Fuel economy was a "why not to buy" with the GLK350, as the gas-powered Mercedes-Benz crossover trails the competing Audi and BMW in this area. With the diesel, though, the tables turn. BMW doesn't offer a diesel X3 in North America, at least not yet. For 2014, Audi does offer a Q5 TDI.When I heard that Audi was going to offer a diesel compact crossover, I assumed that the engine in question would be a four-cylinder unit. Nope, it's a 240-horsepower 3.0-liter V6. The official line: a four-cylinder wouldn't suit Audi's performance-oriented brand image in the U.S. With a much smaller engine and (partly as a result) a couple hundred pounds less curb weight, the GLK250 BlueTEC tops the Q5 in fuel economy. But, according to the EPA, only on the highway, with a rating of 33 mpg vs. 31.Both crossovers achieve an EPA city rating of 24 mpg. In the real world, the GLK250 impresses in suburuban driving, with the trip computer usually reporting averages from 31 to 35, and on one run to my son's school nearly 40. This is about 50 percent better than in the GLK350. see full Mercedes-Benz GLK review

Mercedes-Benz GLK Real Gas Mileage: Cons
Year	Comment
2010	If you prioritize performance, the GLK's mandatory 3.5-liter V6, upgraded via direct injection from 268 to 302 horsepower for 2013, might seem a good thing. But even after the power bump, the boosted sixes in the Audi and BMW are stronger, and they're paired with more responsive eight-speed automatics (vs. a seven-speed transmission introduced nearly a decade ago). More of an issue for most potential buyers: fuel economy. The GLK350 is more efficient for 2013, thanks to direct injection, electric-steering assist, driving style feedback, and a shudder-free automatic start/stop system (study it, BMW). The EPA ratings have improved from last year's 16 mpg city, 21 highway to 19/24. But even 19/24 is only marginally competitive in the 2013 challenge. The BMW X3 xDrive28i is nearly as quick, and rates 21/28. The quicker X3 xDrive35i matches the GLK in the city, but does a couple mpg better on the highway. In our real-world suburban driving, the GLK350 trailed the BMW X3 xDrive28i by one to two mpg. Not a big difference, but a difference. Mercedes will soon offer a more fuel-efficient engine option in North American GLKs. But it won't be a smaller gas engine. Instead, the new GLK250 will be motivated by a 190-horsepower, four-cylinder diesel engine. see full Mercedes-Benz GLK review

What Our Members Are Saying about the Real Gas Mileage of the Mercedes-Benz GLK

Mercedes-Benz GLK Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2013	4dr SUV turbocharged 168hp 2.1L I4 Diesel 7-speed shiftable automatic AWD	The diesel option was the #1 reason I looked at the vehicule and the deciding point to go with it. At over 200 miles per day to communte, I needed the mileage numbers and in Quebec, diesel is less expensive than regular gas and way less than premium. see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	better than expected: 19 suburban, 25 highway see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	A major disappointment. But, to be fair, I live at the top of a mountain in LA and all of my past cars also had bad mileage. It isn't bad on the highway...I get average of 22 mpg...but pure city driving drags it down to 16-17. see full Mercedes-Benz GLK review

Mercedes-Benz GLK Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic RWD	having owned a c280 with 3 liter engine and been very happy with performance plus low 30s highway, mid to high 20s suburban, why not put 3 liter in the glk? while glk is heavier, 3.5 liter penalizes mpg for little better performance. otherwise there is nothing not to like and alot to like about this great vehicle. see full Mercedes-Benz GLK review
2011	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	If you are looking for a Prius....this isn't your car. see full Mercedes-Benz GLK review
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	sad see full Mercedes-Benz GLK review
2010	4dr SUV 268-horsepower 3.5L V6 7-speed shiftable automatic AWD	Performance comes at a price...gas mileage more on the order of a full size SUV. Wish a diesel had been available. see full Mercedes-Benz GLK review

What Our Members Are Saying about the Real Gas Mileage of the BMW Z4

BMW Z4 Real Gas Mileage: Pros
Year	Body/Powertrain	Comment
2007	2dr Hatch 255-horsepower 3.0L I6 6-speed manual RWD	it gets better fuel economy than the M coupe, but still out performs the 2.5i and 3.0i models. see full BMW Z4 review
2007	2dr Convertible 215-horsepower 3.0L I6 6-speed shiftable automatic RWD	Fuel economy is great. Getting 30 to 33 mpg on trips on 2 lane rural highways at 65 to 70 mph. see full BMW Z4 review
2006	2dr Convertible 215-horsepower 3.0L I6 6-speed manual RWD	Around town I get about 23 mpg but on the open highway, get 30 to 32 mpg which is huge since the Z only uses premium grade gas. see full BMW Z4 review
2004	2dr Convertible 225-horsepower 3.0L I6 6-speed manual RWD	Average 26-27mpg combined city/highway in daily commuter driving (no expressway)...even with some spirited driving. see full BMW Z4 review

BMW Z4 Real Gas Mileage: Cons
Year	Body/Powertrain	Comment
2007	2dr Hatch 330-horsepower 3.2L I6 6-speed manual RWD	City driving only about 17 MPG; highway driving 21 MPG see full BMW Z4 review