The Interior of the Mercedes-Benz SLC are as follow:
| Variants | 2018 Mercedes-Benz SLC SLC 200 | 2018 Mercedes-Benz SLC SLC 300 |
| Sunroof | - | Panoramic |
| Sunshade | - | - |
| Seat Features(Front-Driver) | Power Adjustable Seats with Memory Function | Power Adjustable Seats with Memory Function |
| Seat Features(Passenger) | ||
| Seat Features(Rear) | - | - |
| Cupholders | 2 Front | |
| Front Air-con | Single-zone Manual Climate Control | Dual-zone Automatic Climate Control System |
| Rear Air-con | N | |
| Paddle Shift | Y | |
| Multi-function Steering Wheel | Y | Y |
| Steering Tilt | Y | Y |
| Steering Telescopic | Y | Y |
| Steering Adjustment Electric | ||
| Engine Start | Keyless Push Button | Keyless Push Button |
| Head-up Display | - |
