Fuse box – location
F32 – Front prefuse
F34 – Interior fuse box
N10/1 – Driver-side SAM control unit with fuse and relay module
N10/2 – Rear SAM control unit with fuse and relay module
Luggage compartment fuse box
| No. | Fused function | A |
| 1 | Vehicle Information and Communication System (VICS) (Japan only) (up to 2008) | 5 |
| 2 | Not used | – |
| 3 | Telephone system (up to 2008) Tire pressure monitor control unit (as of 2009) Parktronic control unit (as of 2009) |
7.5 |
| 4 | Fuel pump assembly | 20 |
| 5 | Reserve 2 relay (as of 2009) | 20 |
| 6 | Not used | – |
| 7 | Reserve 1 relay (as of 2009) | 20 |
| 8 | Left antenna amplifier module, right antenna amplifier module (up to 2008), left rear bumper antenna amplifier (up to 2008) Anti-theft alarm system (ATA [EDW]) Compensator |
5 |
| 9 | Parktronic System (PTS) (up to 2008) | 5 |
| Seat heater, AIRSCARF and steering wheel heater control unit (as of 2009) | 25 | |
| 10 | Rear window defroster | 40 |
| 11 | Not used | – |
| 12 | Not used | – |
| 13 | Stowage compartment illuminat (up to 2008) CDA telephone (retrofit wiring harness) (up to 2008) Lumbar pump (as of 2009) Emergency call system control unit (as of 2009) VICS+ETC voltage supply separation point (as of 2009) |
5 |
| 14 | Not used | – |
| 15 | Interior central locking (up to 2008) Filler cap release (up to 2008) Fuel filler flap CL [ZV] motor (as of 2009) Glove compartment CL [ZV] motor (as of 2009) CL center console compartment motor (as of 2009) |
5 |
| 16 | Lumbar pump (as of 2009) | 7.5 |
| 17 | Digital Audio Radio satellite (SDAR) (USA only) (up to 2008) Voice control system (VCS) (USA only) (up to 2008) |
5 |
| 18 | Seat heater, AIRSCARF and steering wheel heater control unit (as of 2009) | 20 |
| 19 | CD player with changer (in glove compartment) (up to 2008) Navigation system (up to 2008) |
7.5 |
| Seat heater, AIRSCARF and steering wheel heater control unit | 20 | |
| 20 | Emergency call system (USA only) (up to 2008) | 7.5 |
| Seat heater, AIRSCARF and steering wheel heater control unit | 10 | |
| Relay | ||
| A | Fuel pump relay | |
| B | VICS relay (Japan only) | |
| C | Reserve 2 relay | |
| D | Reserve 1 relay | |
| E | Rear window defroster relay | |
| F | Circuit 15R, relay 1 | |
| G | Fuel filler cap polarity change 1 relay | |
| H | Fuel filler cap polarity change 2 relay | |
Instrument panel fuse panel
| No. | Fused function | A |
| 21 | Soft top operation control unit | 5 |
| 22 | Roof operating unit control unit | 5 |
| 23 | Airscarf system for left seat (up to 2008) | 25 |
| Media interface control unit (as of 2009) | 5 | |
| 24 | Airscarf system for right seat (up to 2008) | 25 |
| Cell phone separation point (as of 2009) | ||
| 25 | Heated seats (up to 2008) | 25 |
| Amplifier for sound system (as of 2009) | 40 | |
| 26 | Radio systems (up to 2008) | 30 |
| Radio (as of 2009) | 25 | |
| 27 | Left door control module | 25 |
| 28 | Right door control module | 25 |
| 29 | AC recirculation unit | 40 |
| 30 | Instrument cluster | 5 |
| 31 | Heated steering wheel (up to 2008) | 10 |
| 32 | Right rear power window motor (up to 2008) Soft top operation control unit (as of 2009) |
25 |
| 33 | LHD: Steering column module | 5 |
| 34 | Steering wheel adjustment (up to 2008) Driver-side front seat adjustment control unit, with memory (as of 2009) |
30 |
| 35 | Front passenger seat adjustment (up to 2008) Passenger-side front seat adjustment control unit with memory (as of 2009) |
30 |
| 36 | EIS [EZS] control unit Electric steering lock control unit |
15 |
| 37 | Upper control panel control unit Automatic air conditioning (KLA) or comfort automatic air conditioning (C-AAC) Mirror adjustment (up to 2008) Vario roof (VD) control (up to 2008) Duovalve (up to 2008) Mirror folding-in (up to 2008) HEAT control and operating unit (as of 2009) Comfort AAC [KLA] control and operating unit (as of 2009) |
7.5 |
| 38 | Soft top mechanism hydraulic unit | 40 |
| 39 | Left rear power window motor (up to 2008) Soft top operation control unit (as of 2009) |
25 |
| 40 | Data link connector (1.3) (up to 2008) Central gateway control unit |
5 |
| 41 | Radio systems (up to 2008) Navigation system (up to 2008) Emergency call system control unit (as of 2009) Digital Audio Broadcasting control unit (as of 2009) SDAR control unit (as of 2009) |
5 |
| 42 | RHD: Steering column module | 5 |
Engine compartment fuse box
| No. | Fused function | A |
| 43 | Fanfare | 15 |
| 44 | Glove compartment illumination with switch Stowage compartment illumination between backrests (as of 2009) Armrest stowage compartment lighting (as of 2009) C-AAC [K-KlA] multifunction sensor |
5 |
| 45 | ARMADA airbag control unit (up to 2008) Airbag indicator and warning lamp (up to 2008) Restraint systems control unit (as of 2009) Front passenger seat occupied and child seat recognition sensor (as of 2009; USA) Weight Sensing System (WSS) control unit (as of 2009; USA) |
7.5 |
| 46 | Wiper system (WSA) | 40 |
| 47 | Cigar lighter with ashtray illumination Interior socket Radio systems (up to 2008) |
15 |
| 48 | Not used | – |
| 49 | ARMADA airbag control unit (up to 2008) Airbag indicator and warning lamp (up to 2008) Restraint systems control unit (as of 2009) |
7.5 |
| 50 | Switch and controls illumination on exterior lamp switch | 5 |
| 51 | Instrument cluster (up to 2008) Headlamp range adjustment (HRA) (up to 2008) Electric suction-type fan for engine/AC (up to 2008) |
5 |
| HRA power module (as of 2009) Valid with engine 113.989 (SLK55 AMG): Control unit box blower motor (as of 2009) |
7,5 | |
| 52 | Starter | 15 |
| 53 | Engine control circuit 87/M1 (up to 2008) Rear SAM control unit with fuse and relay module (as of 2009) Starter relay (as of 2009) Valid for engines 271, 272: ME-SFI [ME] control unit (as of 2009) Valid with engine 113.989 (SLK 55 AMG): ME-SFI [ME] control unit (as of 2009) Valid with engine 113.989 (SLK 55 AMG): Circuit 87 M1e connector sleeve (as of 2009) Valid for engine 272: Circuit 87 M1e connector sleeve (as of 2009) |
25 |
| 54 | Engine control, circuit 87/M2 (up to 2008) AAC with integrated control additional fan motor (as of 2009) Valid with engine 113.989 (SLK55 AMG), 272: Air pump relay (as of 2009) |
15 |
| 55 | Headlamp range adjustment (HRA) Backup lamp switch (up to 2008) Valid for transmission 722:Electric control unit (VGS) (up to 2008) Valid for transmission 722: Electronic selector lever module control unit (as of 2009) Valid for transmission 722.6: ETC [EGS] control unit (as of 2009) |
7.5 |
| 56 | Electronic stability program (ESP) | 5 |
| 57 | EIS [EZS] control unit Valid for engine 113.989 (SLK 55 AMG), 272:Engine management |
5 |
| 58 | Not used | – |
| 59 | ESP [Electronic Stability Program] (pump) | 50 |
| 60 | ESP (valve block) | 40 |
| 61 | Not used | – |
| 62 | Data link connector Exterior lamp switch |
5 |
| 63 | Exterior lamp switch | 5 |
| 64 | Radio systems (up to 2008) Navigation system (up to 2008) |
10 |
| 65 | Valid for engine 113.989 (SLK 55 AMG), 272:Electric air pump | 40 |
| Relay | ||
| I | FAN relay module (up to 2008) Fanfare horn I relay (as of 2009) |
|
| K | Circuit 87 relay, chassis | |
| L | Wiper relay, stage 1-2 | |
| M | Circuit 15R relay | |
| N | Backup relay | |
| O | Valid with engine 113.989 (SLK55 AMG), engine 272: Air pump relay | |
| P | Circuit 15 relay | |
| Q | Wiper ON and OFF relay | |
| R | Circuit 87 relay, engine | |
| S | Starter relay | |
Front prefuse
| No. | Fused function | A |
| 1 | Interior fuse box | 125 |
| 2 | Rear SAM control module with fuse and relay module | 200 |
| 3 | Spare | 125 |
| 4 | Driver-side SAM control module with fuse and relay module, part 1 | 200 |
| 5 | Electric suction-type fan for engine/AC | 125 |
| 6 | Driver-side SAM control module with fuse and relay module, part 4 | 60 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.