| Options | Interchange # |
| |
| 172 Type |
| Air Bag |
| SLK300 | 591-75815 |
| SLK350 | 591-75815 |
| SLK55 | 591-75815 |
| 172 Type |
| Communication |
| SLK300 |
| below seat | 591-71762 |
| trunk | 591-75104 |
| SLK350 |
| below seat | 591-71762 |
| trunk | 591-75104 |
| SLK55 |
| below seat | 591-71762 |
| trunk | 591-75104 |
| 172 Type |
| Cruise Control |
| SLK300 |
| (adaptive cruise) |
| (RH dash) |
| (ID 0009001304) | 591-72078 |
| SLK350 |
| (adaptive cruise) |
| (RH dash) |
| (ID 0009001304) | 591-72078 |
| SLK55 |
| (adaptive cruise) |
| (RH dash) |
| (ID 0009001304) | 591-72078 |
| 172 Type |
| Door |
| SLK300 |
| R. |
| ID 2129001829 | 591-71212R |
| ID 2129004718 | 591-71212R |
| ID 2129009328 | 591-71212R |
| L. |
| ID 2129001529 | 591-71211L |
| ID 2129009029 | 591-75821L |
| ID 2129009128 | 591-71211L |
| SLK350 |
| R. |
| ID 2129001829 | 591-71212R |
| ID 2129004718 | 591-71212R |
| ID 2129009328 | 591-71212R |
| L. |
| ID 2129001529 | 591-71211L |
| ID 2129009029 | 591-75821L |
| ID 2129009128 | 591-71211L |
| SLK55 |
| R. |
| ID 2129001829 | 591-71212R |
| ID 2129004718 | 591-71212R |
| ID 2129009328 | 591-71212R |
| L. |
| ID 2129001529 | 591-71211L |
| ID 2129009029 | 591-75821L |
| ID 2129009128 | 591-71211L |
| 172 Type |
| Driver Assist |
| SLK300 |
| (park assist) | 591-74576 |
| SLK350 |
| (park assist) | 591-74576 |
| SLK55 |
| (park assist) | 591-74576 |
| 172 Type |
| Fuel Pump |
| SLK300 |
| (trunk) | 591-75107 |
| SLK350 |
| (trunk) | 591-75107 |
| SLK55 |
| (trunk) | 591-75107 |
| 172 Type |
| Lamp |
| SLK250 |
| (signal activation module) |
| engine compartment | 591-74578 |
| trunk | 591-74576 |
| SLK350 |
| (signal activation module) |
| engine compartment | 591-74578 |
| trunk | 591-74576 |
| SLK55 |
| (signal activation module) |
| engine compartment | 591-74578 |
| trunk | 591-74576 |
| 172 Type |
| Multifunction |
| SLK250 |
| (trunk) |
| (Keyless Go) | 591-73549 |
| SLK350 |
| (trunk) |
| (Keyless Go) | 591-73549 |
| SLK55 |
| (trunk) |
| (Keyless Go) | 591-73549 |
| 172 Type |
| Parking Brake |
| SLK300 | 591-72345 |
| SLK350 | 591-72345 |
| SLK55 | 591-72345 |
| 172 Type |
| Roof |
| SLK300 | 591-75816 |
| SLK350 | 591-73558 |
| SLK55 | 591-73558 |
| 172 Type |
| Seat |
| SLK300 |
| R. | 591-73276R |
| L. | 591-73277L |
| SLK350 |
| R. | 591-73276R |
| L. | 591-73277L |
| SLK55 |
| R. | 591-73276R |
| L. | 591-73277L |
| 172 Type |
| Suspension |
| SLK300 |
| damping control | 591-75822 |
| TPMS | 591-72976 |
| SLK350 |
| damping control | 591-75822 |
| TPMS | 591-72976 |
| SLK55 |
| damping control | 591-75822 |
| TPMS | 591-72976 |
| 172 Type |
| Temperature |
| SLK300 |
| (airscarf) | 591-71201 |
| SLK350 |
| (airscarf) | 591-71201 |
| SLK55 |
| (airscarf) | 591-71201 |