Acura
ILX
Owner report available
Mercedes-Benz
CLA
Owner report available
Acura ILX vs Mercedes-Benz CLA
The short answer
Based on available data, the Mercedes-Benz CLA comes out ahead of the Acura ILX 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.
Specs side by side
What owners say
ILX
Overall
Owners generally regard the ILX as a reliable, well-built compact sedan that shares its bones with the Honda Civic, and most describe it as a solid daily driver rather than a true luxury car. Praise centers on reliability, easy maintenance, good highway fuel economy, and the non-turbo K24 engine paired with a dual-clutch transmission in later models. Criticism focuses on the harsh ride, unremarkable handling, transmission clunkiness at low speed, and the fact that it does not feel as premium as its badge or price suggest.
Best version to buy
Insufficient owner data available to declare a consensus. Partial signal favors the 2016-2018 models with the K24 engine and dual-clutch transmission, which owners describe as reliable, quick-shifting, and capable of around 40 mpg on the highway.
Known issues
- Infotainment head unit failure after battery death or developer-menu access, requiring full computer replacement at roughly $1,000: Frequency: recurrent (multiple 2019 and 2021 owners).
CLA
Overall
Sentiment is sharply divided and heavily dependent on model year, powertrain, and owner expectations. For the first-generation (approx. 2014-2019) CLA, sentiment is predominantly negative, characterized by widespread criticism of its stiff ride quality, perceived cheap interior materials, front-wheel-drive-based platform, and recurring mechanical and electrical issues, particularly with aging examples. It is frequently described as an overpriced "entry model" that prioritizes the Mercedes-Benz badge over traditional brand virtues like driving dynamics and luxury.
Best version to buy
Insufficient owner data available to declare a consensus "best" version. Positive mentions are split: the CLA 250 4MATIC is noted for good all-weather capability and value as an introduction to the brand.
Known issues
- **First Generation (2014-2019) Specific:** * **Transmission problems (DCT/7G-DCT)**: Grinding noise on light acceleration from stop, whining in second gear, erratic RPM behavior, sluggish/unreliable starting. Frequency: very frequent.
- **Second Generation (2020+) & Cross-Generation:** * **Serious engine failures in 2021+ models**: Complete engine replacements required under warranty for CLA 35 AMG and other Mercedes models, with concerns about issues arising just after w…
The verdict
The Acura ILX is the better choice for most buyers.
It has stronger reliability sentiment in owner reports than the Mercedes-Benz CLA, based on the data above. If the specific known issues on the Acura ILX are a dealbreaker, the Mercedes-Benz CLA is worth a closer look instead.
Explore further
Common problems by model year
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Frequently asked questions
Which is more reliable, the Acura ILX or the Mercedes-Benz CLA?
Owner reports lean more positive on reliability for the Acura ILX than the Mercedes-Benz CLA. See the known issues comparison above for the specific concerns owners report on each.
Which is better for families, the Acura ILX or the Mercedes-Benz CLA?
The Acura ILX seats more passengers than the Mercedes-Benz CLA on its catalogued best-equipped version. Body type also differs: the Acura ILX is classed as a Sedan, the Mercedes-Benz CLA as a Station wagon.
Which has better fuel economy, the Acura ILX or the Mercedes-Benz CLA?
The EPA rates the 2022 Acura ILX at 28 mpg combined and the 2027 Mercedes-Benz CLA at 33 mpg, depending on the version.
Which is cheaper to maintain, the Acura ILX or the Mercedes-Benz CLA?
Exact maintenance costs aren't in our data, but owner reports mention cost-related concerns more often for the Acura ILX than the Mercedes-Benz CLA. See the known issues comparison above.