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2018 Mercedes-Benz CLA: common problems and reliability
· X117One of the weaker CLA years.
46 owner complaints, most about electrical system. No recalls.
Should I buy a 2018 CLA?The 2018 Mercedes-Benz CLA has 46 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are electrical system and engine. Owners most often flag oil filter housing leak.
Safety record for the 2018 model year
Source: NHTSA complaints and recalls filed for 2018 Mercedes-Benz CLA vehicles (US, public record).
The Year Score compares this year with other CLA years only. How we score it
Is 2018 a good year for the CLA?
Across the 14 CLA model years we track, complaint volume runs from 5 (2022) to 195 (2014). With 46 complaints, the 2018 CLA sits above the model's median of 24.
These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.
Where owners report problems
What owners report on the X117 CLA
Owner sentiment is sharply divided. Many praise the CLA250 as a reliable, fun, and affordable entry into Mercedes ownership, with several reporting 100k+ miles with only routine maintenance.
- RecurrentOil filter housing leak
- RecurrentHalogen headlights inadequate for safety
- IsolatedLimp mode with restricted RPM and speed, no check engine light
- IsolatedTiming chain issues on 2L engines
- IsolatedSunroof leak or failure, costly to repair
Owner insights for the X117 CLA. Read the full X117 owner report.
Typical used price
Used CLA listings typically run $14,675–$29,581.
Other CLA model years
Compare every CLA year side by side to see how 2018 ranks against the rest.
Compare the CLA against its rivals
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