The short answer
Based on available data, the Mercedes-Benz GLE comes out ahead of the Mercedes-Benz GLK on power. Check the specs table and owner sentiment below for the full comparison before deciding between the two. Both are covered by real owner reports on CarWizz.
Overall
Mixed sentiment with a clear generational divide. Feedback on the 2020-2023 generation (W167) is generally positive, with owners praising its comfortable, cloud-like ride, stunning and spacious interior, ample power from six-cylinder engines, and overall refinement as a luxury family cruiser. However, significant and recurrent criticism is directed at the 2024-2026 model years, particularly regarding severe electrical and software reliability issues.
Best version to buy
For the 2020-2023 generation, the GLE 450 with the inline-six engine is frequently cited as the sweet spot, offering ample power without the extreme cost of the AMG models. The AMG Line package is appreciated for its aesthetics.
Known issues
Overall
Sentiment is mixed and heavily dependent on model year, engine choice, and maintenance history. The GLK is praised by a loyal owner base for its distinctive, boxy styling, comfortable and quiet ride quality, solid build quality from the era, and the reliability of its naturally aspirated V6 gasoline engine (M272). Owners of the GLK 250 BlueTEC diesel frequently highlight exceptional fuel economy and towing capability.
Best version to buy
Insufficient owner data available to declare a consensus "best" trim or package. Feedback is primarily segmented by powertrain.
Known issues
The verdict
The Mercedes-Benz GLE is the better choice for most buyers.
It has more power on its best-equipped version than the Mercedes-Benz GLK, based on the data above. If efficiency matters more to you than outright power, the Mercedes-Benz GLK is worth a closer look instead.
Common problems by model year
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Owner reports show similar reliability sentiment for the Mercedes-Benz GLE and the Mercedes-Benz GLK. Check the known issues listed above for specific differences between the two.
Both seat a similar number of passengers based on our data. The Mercedes-Benz GLE is classed as a Coupe, the Mercedes-Benz GLK as a SUV, which affects cargo space and ride height for family use.
The EPA rates the 2027 Mercedes-Benz GLE at 21–23 mpg combined and the 2015 Mercedes-Benz GLK at 20–27 mpg, depending on the version.
Exact maintenance costs aren't in our data, but reliability signals above are the closest proxy: fewer reported issues generally means lower repair costs over time.