2018 Mercedes-Benz SLC 43 AMG: common problems
The maker issued 19 service bulletins for this year. Details by component below, with sources.
Key figures
- Technical service bulletins (TSB)
- 19
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 0 | 0 | 8 |
| Equipment | 0 | 0 | 4 |
| Engine and cooling | 0 | 0 | 3 |
| Engine | 0 | 0 | 2 |
| Backover prevention | 0 | 0 | 1 |
| Communication | 0 | 0 | 1 |
| Exterior lighting | 0 | 0 | 1 |
| Fuel system | 0 | 0 | 1 |
| Powertrain | 0 | 0 | 1 |
| Seats | 0 | 0 | 1 |
| Structure | 0 | 0 | 1 |
| Tires | 0 | 0 | 1 |
| Other | 0 | 0 | 1 |
Comparison
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Backover prevention. Rear camera and parking sensors after a rear impact.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Mercedes-Benz AG (âÂÂMBAGâÂÂ), the manufacturer of Mercedes-Benz, has determined that in certain MY…
Mercedes-Benz AG (âÂÂMBAGâÂÂ), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253…
- Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the…
Crease formation on genuine leather seat covers in vehicles with low mileage ⢠Objects left on the seats for extended periods of time (pressure marks). ⢠Objects wedged between the seat backrest and seat…
- The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle
The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an extended period of time; the message then disappears of its own accord after…
- In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the…
In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (âMBUSAâ) is extending the coverage for the intake line…
- Mercedes-Benz AG (âMBAGâ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain…
Mercedes-Benz AG (âMBAGâ), the manufacturer of Mercedes-Benz vehicles, has determined that on certain MY 2018-2023 C-Class, EQE, EQE SUV, EQS, EQS SUV, GLC, GLE and S-Class (206, 295, 294, 297, 296, 254, 167 and…
- Complaint The range of the integrated garage door opener (GTO) is too short
Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from complaints involving low transmission power. 2. When comparing the range between the integrated GTO and the garage door hand…
- Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in…
Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. The integrated garage door opener (GDO) is not compatible with the opening…
- "MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 â Boost Pressure is Too High"" "
- Model series 190.4 Anti-theft alarm activates without obvious cause
- Traffic information service and posibly the voice control, nonfunctional after navigation software update
- Damage to roof frame seal above windshield in area of mounts
- Gasket may settle causing a slight oil leak
NHTSA lists 19 bulletins for this year; the 12 newest are shown here.
Other years of this model
Questions and answers
What are the most common problems with the 2018 Mercedes-Benz SLC 43 AMG?
There are no owner complaints in the NHTSA data for this year; the data comes from 19 manufacturer service bulletins.
How many service bulletins (TSB) were issued for the 2018 Mercedes-Benz SLC 43 AMG?
NHTSA lists 19 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2018 Mercedes-Benz SLC 43 AMG from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2018 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-06.