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2018 Mercedes-Benz C 350 EProblems, recalls & complaints

NHTSA has logged 2 owner complaints about the 2018 Mercedes-Benz C 350 E, most often about the engine. It is covered by 5 safety recalls, and for recall 23V-854 the manufacturer reports only 41% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls5Lowest repair rate 41%Owner complaints20 with a crash, fire or injuryTop problem2Engine

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through December 15, 2023. Updated daily.

Complaints by system

Where the 2018 Mercedes-Benz C 350 E has problems

2 complaints grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine20
Power train10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

5 recalls

2018 Mercedes-Benz C 350 E recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

41%repaired · 2025 Q4

Body: roof and pillars

Recall 23V-854 · Dec 15, 2023 · 2,976 vehicles · 1,209 repaired

Risk. A detached roof panel can become a road hazard, increasing the risk of a crash.

Problem, fix and repair progress →

55%repaired · 2023 Q3

Body: roof and pillars

Recall 21V-197 · Mar 19, 2021 · 15,096 vehicles · 8,323 repaired

Risk. The adhesive bonding of the front panel might deteriorate, possibly causing the front panel to detach from the vehicle and become a road hazard, increasing the…

Problem, fix and repair progress →

95%repaired · 2023 Q4

Communication: auto crash notification

Recall 21V-058 · Feb 5, 2021 · 1,292,258 vehicles · 1,231,020 repaired

Risk. Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.

Problem, fix and repair progress →

92%repaired · 2022 Q2

Rack and pinion: rack

Recall 18V-850 · Nov 29, 2018 · 6,373 vehicles · 5,857 repaired

Risk. A car that cannot be properly steered has an increased risk of a crash.

Problem, fix and repair progress →

Show 1 more recall
93%repaired · 2020 Q2

Sensor: occupant classification

Recall 18V-838 · Nov 27, 2018 · 104,663 vehicles · 97,317 repaired

Risk. If the passenger air bag is incorrectly displayed as 'ON' when it is not, a front seat passenger may be unaware that the air bag will not deploy in the event…

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Mercedes-Benz.

Best & worst years

2018 vs. every other C 350 E year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the C 350 E median. How we score

'16'17'18'19'20
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
3 investigations

NHTSA defect investigations

Federal investigations that included the 2018 Mercedes-Benz C 350 E, and the recalls they led to.

  1. Pedestrian alert soundsDP22005 · closed Aug 7, 2023
    Led to recall 22V-063
  2. Desiccated Air Bag Inflator RuptureEA21002 · still open
    Open
  3. Front Roof Panel DetachmentPE21001 · closed Oct 14, 2021
    Led to recall 21V-197
In owners' words

What C 350 E owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

Engine light came on, checked with diagnostic machine shows a crank shaft issue. I have maintained the car with regular checks and maintenance. This has to be a defective part.
Complaint 11544819 · Sep 15, 2023

Own a 2018 C 350 E?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.