2020 Mercedes-Benz CLS: common problems and reliability
One of the weaker CLS years.
6 owner complaints, most about electrical system. No recalls.
Should I buy a 2020 CLS?The 2020 Mercedes-Benz CLS has 6 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are electrical system and back over prevention. Owners most often flag 48v mild hybrid system failures: includes battery and dc/dc converter malfunctions, causing warning lights and electrical issues, particularly on 2019+ cls450 models.
Safety record for the 2020 model year
Source: NHTSA complaints and recalls filed for 2020 Mercedes-Benz CLS vehicles (US, public record).
The Year Score compares this year with other CLS years only. How we score it
Is 2020 a good year for the CLS?
Across the 16 CLS model years we track, complaint volume runs from 1 (2021) to 111 (2006). With 6 complaints, the 2020 CLS sits about the same as the model's median of 7.
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 say across generations
Sentiment is mixed and heavily dependent on the specific generation and powertrain.
- Very frequent48V mild hybrid system failures
Includes battery and DC/DC converter malfunctions, causing warning lights and electrical issues, particularly on 2019+ CLS450 models.
Owner insights cover all generations of the CLS. See the full CLS owner picture and every model year.
Typical used price
Used CLS listings typically run $16,575–$35,372 across 2007 to 2023 model years.
Other CLS model years
Compare every CLS year side by side to see how 2020 ranks against the rest.
Compare the CLS against its rivals
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