2021 Mercedes-Benz C-class: common problems and reliability

The 2021 Mercedes-Benz C-class has 27 owner-filed NHTSA complaints and 0 recalls on record. The most-reported areas are engine and fuel/propulsion system. Owners most often flag infotainment screen freezing, rebooting, or becoming unresponsive: frequency: very frequent.

Safety record for the 2021 model year

27
Owner complaints
0
Recalls
0
Crash reports
0
Fire reports

Source: NHTSA complaints and recalls filed for 2021 Mercedes-Benz C-class vehicles (US, public record).

Is 2021 a good year for the C-class?

Across the 22 C-class model years we track, complaint volume runs from 17 (2024) to 864 (2015). With 27 complaints, the 2021 C-class sits belowthe model's median of 250.

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

engine
14
fuel/propulsion system
4
power train
3
air bags
3
fuel system
2

What owners report on the W206 C-class

Sentiment is sharply divided. Early adopters of 2022 models report a high number of electrical and software glitches, multiple safety recalls, and frequent dealer visits, leading some to call it one of the worst Mercedes ever. However, many owners of 2023 and

  • Infotainment screen freezing, rebooting, or becoming unresponsive: Frequency: very frequent
  • Multiple safety recalls (rear SAM module, fuel pump, etc.): Frequency: very frequent
  • Cheap, creaky interior plastics and rattling sounds (e.g., from passenger headrest): Frequency: recurrent
  • Capacitive touch buttons on steering wheel and center console are frustrating and unresponsive: Frequency: recurrent
  • Premature tire wear and alignment issues: Frequency: recurrent

Owner insights for the W206 C-class. Read the full W206 owner report.

Other C-class model years

Compare every C-class year side by side to see how 2021 ranks against the rest.

Compare the C-class against its rivals