Mercedes-Benz S Class w126 300SD (1983) – fuse box diagram USA version – 126 545 07 00
Year of production: 1983
Fuse box
| Fuse | Ampere rating [A] | Colour | Circuit protected |
| a | 16 | red | Window lift front right, rear left |
| b | 16 | red | Window lift front left, rear right |
| c | 16 | red | Auxiliary fan |
| d | 25 | blue | Front seat adjustment seat cushion rear high – low resp. fronht high – low (memory) seat back adjustment |
| 1 | 8 | white | Parking/tail light right, warning buzzer, license plate/instrument/hazard warning switch/heater and ventilation controls/rocker switches illumination, (electronic radio illumiantion) |
| 2 | 8 | white | High beam right, high beam indicator |
| 3 | 8 | white | Parking/tail light left |
| 4 | 8 | white | High beam left |
| 5 | 25 | blue | Front seat adjustment, seat cushion front how-low respect rear high-low (memory), fore-alt |
| 6 | 16 | red | Low beam right, fog light |
| 7 | 16 | red | Windshieldwiper and washer, optical horn, outside mirror, relay window lift term. 86 |
| 8 | 8 | white | Low beam left |
| 9 | 8(16)* | white(red)* | Cigar lighter, glove compartment light, radio, heating system for washer jets (seat heating front)* |
| 10 | 8 | white | Control unit, water pump, heating water valve, blower motor inside temperatur sensor for automatic climate control system, back-up lamp, overload protection, autom. transmission, relay auxiliary fan term. 86, overload protection |
| 11 | 25 | blue | Blower motor, air condit. compresor swich-over valve idle stabiliz. |
| 12 | 8 | white | Stop-turn signal lamp, instrument cluster, diagnostic warn. monitor term. 8, cruise control, tachometer |
| 13 | 8 | white | Diagnostic, hazard warn. system, clock, central locking system, control unit memory of seat adjustment system, (electronic radio) |
| 14 | 25 | blue | Heated rear window, horn, safety belt handover arm, cigar. light rear (seat heating rear) |
| 15 | 8 | white | Trunk light, roof light front and rear, illumin. vanity mirror, safety belt handover arm, door lights, autom. antenna, warning monitor term. 5 |
| 16 | 16 | red | (Sliding roof, adjustable seat rear) |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.