2017 Mercedes-Benz SLC-Class
The Verdict
Worst problem area
Engine
Engine leads by volume: 1 of 4 complaints (25%) mentions it.
Data last changed . Sources: NHTSA complaints and recalls, EPA fuel economy data. Methodology
Cost, Fuel Economy & Complaint History
| Category | 2017 | 2018 | 2019 | vs. 2017 Two Seaters |
|---|---|---|---|---|
| Annual fuel cost ($) | 2,850–3,350 | 2,850–3,350 | 2,850–3,350 | |
| Combined MPG | 23–27 | 23–27 | 23–27 | |
| City / Highway MPG | 20–25 / 29–32 | 20–25 / 29–32 | 20–23 / 29–32 | |
| CO₂ tailpipe (g/mi) | 324–379 | 324–379 | 330–383 | |
| Complaints filed | 4 | 1 | 1 | |
| Recalls issued | 2 | 1 | 2 | |
| Crash-involved complaints | 0 | 0 | 0 | |
| Fire-involved complaints | 0 | 0 | 0 | |
| Injuries reported | 0 | 0 | 0 | |
| Deaths reported | 0 | 0 | 0 | |
| Configurations compared | 2 | 2 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2017 Mercedes-Benz SLC-Class have?
2 NHTSA recall campaigns as of Sep 16, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What gas mileage does the 2017 Mercedes-Benz SLC-Class get?
EPA rates it 23–27 MPG combined across 2 configurations.
How much does it cost to fuel a 2017 Mercedes-Benz SLC-Class?
EPA estimates $2,850–$3,350 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (2)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 9-spd | 4 | 2.0L | Rear-Wheel Drive | Premium | Two Seaters | 25 mpg (high) | 32 mpg (high) | 27 mpg (high) | $2,850 (low) | 324 g/mi (low) |
| Configuration 2 | Automatic 9-spd | 6 | 3.0L | Rear-Wheel Drive | Premium | Two Seaters | 20 mpg (low) | 29 mpg (low) | 23 mpg (low) | $3,350 (high) | 379 g/mi (high) |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 1 | 0 | 0 | 0 | 0 |
| Transmission & Drivetrain | 0 | 0 | 0 | 0 | 0 |
| Fuel System | 0 | 0 | 0 | 0 | 0 |
| Electrical | 1 | 0 | 0 | 0 | 0 |
| Brakes | 0 | 0 | 0 | 0 | 0 |
| Steering | 0 | 0 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 0 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 0 | 0 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 0 | 0 | 0 | 0 | 0 |
| Body, Seats & Latches | 1 | 0 | 0 | 0 | 0 |
| Visibility & Lighting | 0 | 0 | 0 | 0 | 0 |
| Other | 1 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (2)
ELECTRICAL SYSTEM:SOFTWARE; COMMUNICATION: AUTO CRASH NOTIFICATION · Campaign 21V058000 · Feb 8, 2021
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
Consequence: Failure of the eCall system may result in emergency responders being dispatched to the wrong location, increasing the risk of injury following a crash.
Remedy: MBUSA will notify owners, and the communication module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. The recall began March 12, 2021. Owners may contact MBUSA customer service at 1-877-762-8267. MBUSA's number for this recall is 2021020025.
ELECTRONIC STABILITY CONTROL (ESC) · Campaign 17V308000 · May 12, 2017
Defect: Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2015 SLK 250, 2016 SLK 350, 2016-2017 SLC 300, and 2017 SLC 43 AMG vehicles. In these vehicles, the electronic stability control (ESC) system software may incorrectly keep the brakes slightly applied.
Consequence: 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 crash. Additionally, the dragging brakes may overheat, increasing the risk of a fire.
Remedy: MBUSA will notify owners, and dealers will update the software for the ESC system, free of charge. The recall began June 9, 2017. Owners may contact MBUSA customer service at 1-800-367-6372.