Mercedes-Benz GLK350 — All Years
We have Mercedes-Benz GLK350 specifications on file for 6 model years, 2010–2015, covering suv trims. EPA data lists a single engine, the 3.5L 6-cyl. Combined fuel economy runs from 22 to 26 mpg (UK) depending on year, engine and transmission. Select a year below for full engine, fuel economy, dimensions and safety data.
| Year | Engine(s) | Fuel | MPG (UK) | CO₂ g/km | NHTSA | Recalls | Complaints |
|---|---|---|---|---|---|---|---|
| 2015 | 3.5L 6-cyl | Premium Gasoline | 24–26 | 257 | — | 0 | 133 |
| 2014 | 3.5L 6-cyl | Premium Gasoline | 25–26 | 257 | — | 0 | 126 |
| 2013 | 3.5L 6-cyl | Premium Gasoline | 25 | 257 | — | 0 | 146 |
| 2012 | 3.5L 6-cyl | Premium Gasoline | 22 | 307 | — | 0 | 171 |
| 2011 | 3.5L 6-cyl | Premium Gasoline | 22 | 307 | — | 0 | 134 |
| 2010 | 3.5L 6-cyl | Premium Gasoline | 22 | 307 | — | 0 | 241 |
Best and Worst Mercedes-Benz GLK350 Years: What the NHTSA Data Shows
Across the 6 Mercedes-Benz GLK350 model years from 2010 to 2015 that have NHTSA data, the typical year has about 140 owner complaints on file. These are the extremes:
Fewest owner complaints
Complaint counts are unverified owner reports to NHTSA and rise with how many cars were sold and how long they have been on the road, so treat them as a pointer for what to inspect, not a reliability score. Model years after 2022 are left out because they have had little time to accumulate reports. Always check a specific car by VIN at nhtsa.gov/recalls.
Engine History
- 3.5L 6-cyl — 2010–2015
Engines are those EPA lists for each model year; the MPG (UK) column shows the range across configurations where more than one exists.
Frequently Asked Questions
What years is the Mercedes-Benz GLK350 covered on this site?
We have data for 6 model years of the Mercedes-Benz GLK350, from 2010 to 2015.
What engines does the Mercedes-Benz GLK350 come with?
EPA data lists: 3.5L 6-cyl (2010–2015).
Which Mercedes-Benz GLK350 year has the best fuel economy?
The 2015 model returns the highest combined MPG (UK) on record here, at 26 mpg on its most efficient configuration.
Does the Mercedes-Benz GLK350 have a 5-star NHTSA safety rating?
No model year of this car currently has a 5-star overall NHTSA rating on record here — check the individual year pages above for the exact rating available.
Which Mercedes-Benz GLK350 model years have the most recalls and complaints?
NHTSA lists no recalls for 2010–2015. Counts are from NHTSA as of 6 October 2026 and change over time; complaints are unverified owner reports.
What body style is the Mercedes-Benz GLK350?
The Mercedes-Benz GLK350 is classed as an SUV on this site.
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