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2017 Mercedes-Benz SLC 300Problems, recalls & complaints

NHTSA has logged 4 owner complaints about the 2017 Mercedes-Benz SLC 300, most often about the communication. It is covered by 2 safety recalls, and for recall 17V-308 the manufacturer reports only 94% of affected cars repaired.

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CarFlaw IndexNot enough dataHigher is better (0–100)
Safety recalls2Lowest repair rate 94%Owner complaints40 with a crash, fire or injuryTop problem1Communication

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through January 9, 2026. Updated daily.

Complaints by system

Where the 2017 Mercedes-Benz SLC 300 has problems

4 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
Communication10
Electrical system10
Engine10
Structure10

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

2 recalls

2017 Mercedes-Benz SLC 300 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.

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 →

94%repaired · 2018 Q3

Electronic stability control (ESC)

Recall 17V-308 · May 9, 2017 · 5,818 vehicles · 5,447 repaired

Risk. If brake pads are constantly applied over long periods of driving, the brake components may heat up, affecting braking performance and increasing the risk of a…

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

2017 vs. every other SLC 300 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 SLC 300 median. How we score

'16'17'18'19'20
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
1 investigation

NHTSA defect investigations

Federal investigations that included the 2017 Mercedes-Benz SLC 300, and the recalls they led to.

  1. Desiccated Air Bag Inflator RuptureEA21002 · still open
    Open
In owners' words

What SLC 300 owners report

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

TL* THE CONTACT OWNS A 2017 MERCEDES-BENZ SLC300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF HILTON HEAD (155 FORDING ISLAND RD,…
Complaint 11415793 · May 10, 2021

Own a 2017 SLC 300?

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