Mercedes-Benz E-Class (2003 – 2009) Fuse Box Location & Diagrams
This manual includes clear fuse box locations and thorough diagrams for the Mercedes-Benz E-Class (2003-2009). It enables owners to identify fuses and relays rapidly, troubleshoot electrical problems, and perform basic maintenance safely, without confusion or excessive disassembly.
Fuses
Introduction
The electrical fuses in your vehicle serve to switch off malfunctioning power circuits. If a fuse is blown, the components and systems secured by that fuse will stop operating.
Warning!
Only use fuses approved by Mercedes-Benz with the specified amperage for the system in question and do not attempt to repair or bridge a blown fuse. Using other than approved fuses or using repaired or bridged fuses may cause an overload leading to a fire, and/or cause damage to electrical components and/or systems. Have the cause determined and remedied by an authorized Mercedes-Benz Center. A blown fuse must be replaced by an appropriate spare fuse (recognizable by its color or the fuse rating given on the fuse) of the amperage recommended in the fuse chart. Any Mercedes-Benz Center will be glad to advise you on this subject. If a newly inserted fuse blows again, have the cause determined and rectified by an authorized Mercedes-Benz Center. A fuse chart is located in the fuse box in the passenger compartment. The fuse chart explains the fuse allocation and fuse amperages.
Before replacing fuses
- Engage the parking brake.
- Make sure the automatic transmission is in park position P.
- Switch off all electrical consumers.
- Turn off the engine.
- Remove the SmartKey from the starter switch.
- Vehicles with KEYLESS-GO: Open the driver’s door (this puts the starter switch in position 0, same as with the SmartKey removed from the starter switch). The driver’s door then can be closed again.
Fuse Box Locations
Passenger Compartment
Do not use sharp objects such as a screwdriver to open the fuse box cover in the dashboard. You could damage the fuse box cover or the dashboard.
- Fuse box cover
- Recess in the cover
- Open the driver’s door.
- Insert flat, blunt object as a lever in recess 2 on the edge of cover 1.
- Loosen cover 1 from the dashboard using the lever.
- Using your hands, pull cover 1 in direction of arrow and remove it.
- Closing: Hook cover 1 into the opening at
the front. - Press cover 1 back on until it engages.
Fuse box in trunk
Cover with turn catches shown
- Catches
- Cover
- Open the trunk.
Opening cover (with turn catches)
- Turn catches 1 counterclockwise and remove cover 2.
- Closing cover (with turn catches)
- Install cover 2.
- Turn catches 1 clockwise.
- Opening cover (without turn catches)
- Hold cover 2 at recess, press cover 2 slightly together to release tabs from behind trim panel and then pull off cover 2.
- Closing cover (without turn catches)
- Install cover 2 with tabs on one side of trim panel, then press cover 2 slightly together to install cover 2 on other side of trim panel.
Engine Compartment Fuse Box
The fuse box is located in the engine compartment (left-side), under the cover.
Front Pre-Fuse Box
Rear Pre-fuse Box
Passenger Compartment Fuse Box Diagram
Mercedes-Benz E-Class (2003 – 2009)
Assignment of the fuses in the instrument panel
| No | Fused function | Amp |
|---|---|---|
| Feed-in: Rear prefuse box | 150 | |
| 21 | Right rear door control unit | 25/30 |
| 22 | Right front door control unit | 25/30 |
| 23 | Front passenger front seat adjustment control unit with memory | 30 |
| 24 | Circuit 30 connector sleeve, Keyless Go | 25 |
| 25 | Stationary heater unit | 25 |
| 25 | In addition fused via polyswitch fuse for stationary heater: Stationary heater radio remote control receiver | 5 |
| 26 | CD changer | 7.5 |
| 27 | Terminal 15 relay (as of 2007) | 5 |
| 28 | Radio COMAND operating, display and control unit | 5 |
| 28 | Radio control panel and navigation unit COMAND operating, display and control unit | 15 |
| 29 | Steering column module EIS [EZS] control unit | 7.5 |
| 29 | up to 2006: DC/DC converter control unit | 15 |
| 30 | Data link connector | 7.5 |
| 31 | Upper control panel control unit Cutoff relay for interruptible loads (2006-2007) | 5 |
| 31 | up to 2006: Driver-side SAM control unit with fuse and relay module | 7.5 |
| 32 | Left rear door control unit | 30 |
| 33 | Left front door control unit | 30 |
| 34 | Driver-side front seat adjustment control unit, with memory | 30 |
| 35 | WSS (Weight Sensing System) control unit (as of 2007; USA) | 5 |
| 36 | Heated seats and seat ventilation control unit | 25 |
| 37 | AIRmatic with ADS control unit | 15 |
| 38 | NECK-PRO head restraints relay | 7.5 |
| 39 | Lower control panel control unit | 5 |
| 40 | Heated seats and seat ventilation control unit | 10 |
| 40 | up to 2006: Upper control panel control unit | 5 |
| 41 | Central gateway control unit | 5 |
| 42 | Cutoff relay for interruptible loads (up to 2006) ME-SFI [ME] control unit Valid for engine 629, 642, 646 EVO:Terminal 87 relay, engine Driver-side SAM control unit with fuse and relay module (engine 271, 272, 628, 629, 642, 646, 647, 648) CNG control unit (engine 271) |
Luggage Compartment Fuse Box Diagram
Mercedes-Benz E-Class (2003 – 2009)
| No | Fused function | Amp |
|---|---|---|
| 1 | Front passenger partially-electric seat adjustment switch Driver-side front seat adjustment control unit, with memory | 30 |
| 2 | Driver partially-electric seat adjustment switch Passenger-side front seat adjustment control unit with memory | 30 |
| 3 | Tire pressure monitor control unit PARKTRONIC control unit TV combination tuner (analog/digital) Navigation processor | 7.5 |
| 4 | Except engine 113.990 (E55 AMG), 156.983 (E 63 AMG):Fuel pump | 15/20 |
| 4 | Engine 113.990 (E55 AMG): Charge air cooler circulation pump | 15 |
| 5 | – | – |
| 6 | Audio gateway control unit | 40 |
| 7 | Rear-end door control unit | 15 |
| 8 | Left antenna amplifier module ATA [EDW] inclination sensor Alarm horn | 7.5 |
| 9 | Overhead control panel control unit | 25 |
| 10 | Fleated rear window | 40 |
| 11 | Rear-end door control unit | 20 |
| 12 | Cargo area connector box | 15 |
| 13 | Interior socket | 15 |
| 14 | – | – |
| 15 | Fuel filler flap CL [ZV] motor | 10 |
| 16 | Seat heating and seat ventilation control unit | 20 |
| 17 | Trailer connection unit control unit | 20 |
| 18 | Trailer connection unit control unit | 20 |
| 19 | Multicontour seat pneumatic pump | 20 |
| 20 | Rear window roller blind relay | 7.5 |
| Relay | ||
| A | Fuel pump relay (except engine 113.990 (E55 AMG), 156.983 (E 63 AMG)) Engine 113.990 (E55 AMG): Charge air cooler circulation pump relay | |
| B | Relay 2, terminal 15R | |
| C | Spare relay 2 | |
| D | Rear wiper relay | |
| E | Heated rear window relay | |
| F | Relay 1, terminal 15R | |
| G | Fuel filler cap polarity reverser relay 1 | |
| H | Fuel filler cap polarity reverser relay 2 |
Engine Compartment Fuse Box Diagram
Mercedes-Benz E-Class (2003 – 2009)
| No | Fused function | Amp |
|---|---|---|
| 43 | Valid for engine 112, 113, 156, 271, 272, 273:ME-SFI [ME] control unit Valid for engine 271, 272, 273:ME control unit Valid for engines 628, 629, 642, 646, 647, 648: CDI control unit Driver-side SAM control unit with fuse and relay module Rear SAM control unit with fuse and relay module Valid for engine 629, 642, 646, 647, 648: CDI control unit Rear SAM control unit with fuse and relay module | 15 |
| 44 | Valid for engine 646, 647, 648: CDI control unit Valid for engine 271, 272, 273: ME-SFI [ME] control unit Valid for engine 271 (Bivalent natural gas drive): Cyl. 1-4 gas injection valve | 15 |
| 45 | AIRmatic with ADS control unit Electronic selector lever module control unit (Automatic five-speed transmission (NAG)) Rear axle level control system control unit Gear recognition switch (Sequentronic automated manual transmission (SEQ)) | 7.5 |
| 46 | ETC [EGS] control unit (Automatic 5-speed transmission (NAG)) VGS electric control unit (automatic 7-speed transmission) Automated manual transmission control unit (Sequentronic automated manual transmission (SEQ)) | 7.5 |
| 47 | ESP, SPS [PML] and BAS control unit | 5 |
| 48 | Restraint systems control unit Left front reversible emergency tensioning retractor (as of 2007) Right front reversible emergency tensioning retractor (as of 2007) | 7.5 |
| 49 | Restraint systems control unit Front passenger seat occupied and child seat recognition sensor NECK-PRO head restraints relay | 7.5 |
| 50 | Portable CTEL separation point VICS power supply separation point Emergency call system control unit | 5 |
| 51 | Spare | 5 |
| 52 | Exterior lamp switch Instrument cluster Glove compartment illumination with switch AAC with integrated control additional fan motor (as of 2007) Bi-xenon headlamp unit:Headlamp range adjustment control unit | 7.5 |
| 53a | Spare | 15 |
| 53b | Fanfare horn relay | 15 |
| 54a | Illuminated cigar lighter | 15 |
| 54b | Illuminated cigar lighter | 15 |
| 55 | Telephone handset (up to 2007) Bluetooth module connector (up to 2007) Portable CTEL separation point Emergency call system control unit (as of 2007) | 7.5 |
| 56 | Wiper motor | 40 |
| 57 | Valid for engine 628, 646, 647, 648:CDI control unit Valid for engine 271, 272, 273: ME-SFI [ME] control unit Purge control valve PremAir Sensor USA version:Activated charcoal canister shut-off valve | 25 |
| 58 | Valid for engine 112, 113, 156: Cylinder 1-8 ignition coil | 15 |
| 59 | Starter relay | 15/20 |
| 60 | Oil cooler fan (E55 AMG, E63 AMG) | 10 |
| 61 | Electric air pump | 40 |
| 62 | SEQ pump control relay (Sequentronic automated manual transmission (SEQ)) | 30 |
| 63 | Automated manual transmission control unit (Sequentronic automated manual transmission (SEQ)) Valid for engines 112, 113: Circuit 87 relay, engine ME-SFI [ME] control unit | 15 |
| 64 | Exterior lamp switch Instrument cluster AAC [KLA] control and operating unit Comfort AAC [KLA] control and operating unit Steering column module (up to 2007) | 7.5 |
| 65 | IS [EZS] control unit Electric steering lock control unit | 20 |
| 66 | Right front lamp unit Left front lamp unit HRA [LWR] selector wheel (as of 2007) Bi-xenon headlamp unit: HRA power module | 7.5 |
| 67 | Stop light switch | 5 |
| Relay | ||
| I | Terminal 87 relay, engine | |
| K | Terminal 87 relay, chassis | |
| L | Starter relay | |
| M | SEQ pump control relay | |
| N | Terminal 15 relay | |
| O | Fanfare horn relay | |
| P | Terminal 15R relay | |
| R | Air pump relay (except engine 113.990 (E55 AMG), 156.983 (E63 AMG)) Oil cooler fan (only engine 113.990 (E55 AMG), 156.983 (E63 AMG)) | |
| S | Airmatic relay |
Front Pre-Fuse Box
| No | Fused function | Amp |
|---|---|---|
| Feed-in: Battery (G1) | ||
| 68 | Valid for engine 629, 642, 646, 647, 648:Heater booster | 200 |
| 69 | Valid for engine 629, 642, 646 EVO:Glow time output stage | 150 |
| 70 | External start terminal point | – |
| 71 | Valid for engine 112, 113, 156, 271, 272, 273, 629, 642, 646, 647, 648:AAC with integrated control additional fan motor | 150 |
| 71 | Valid for engine 629, 642, 646 EVO:Engine and AC electric suction fan with integrated control | 100 |
| 72 | Traction system hydraulic unit | 50 |
| 73 | Traction system hydraulic unit as of 2007: ESP control unit | 40 |
| 74 | AIRmatic relay | 40 |
| 75 | Right SAM control unit | 40 |
| 76 | Right front reversible emergency tensioning retractor Engine 113.990 (E 55 AMG): Air injection relay | 40 |
| 77 | Blower motor Heating systems recirculation unit Solar generator control unit |
Rear Pre-fuse Box
| No | Fused function | Amp |
|---|---|---|
| Feed -in: Battery | ||
| 78 | Driver-side SAM control unit with fuse and relay module | 200 |
| 79 | Rear SAM control unit with fuse and relay module | 200 |
| 80 | Driver-side SAM control unit with fuse and relay module | 150 |
| 81 | Interior fuse box | 150 |
| 82 | Valid for engine 113.990 (E55 AMG), 156.983 (E63 AMG):Fused via terminal 30 connector sleeve: Fuse F82A and F82B | 150 |
| F82A | Fuse for left fuel pump control unit (156.983 (E63 AMG)) Fuse for right fuel pump control unit (156.983 (E63 AMG)) | 40 |
| F82A | Fuel pump relay (113.990 (E55 AMG), 156.983 (E63 AMG)) | 30 |
| F82B | Air injection relay fuse | 40 |
| 83 | Taxi version: Special vehicle multifunction control unit (SVMCU [MSS]) | 30 |
| 84 | Battery sensor | 5 |
| 85 | Telephone interface Universal Portable CTEL Interface (UPCI [UHI]) control unit Hands-free system control unit Voice control system control unit | 5 |
| 86 | Interior socket (5A – up to 2003; 30A – 2004-2006; 5A – as of 2007) | 5/30 |
| 86 | USA versiom: SDAR control unit | 5 |
| 86 | Valid for government vehicles: Special vehicle multifunction control unit (SVMCU [MSS]) Taxi version: Special vehicle multifunction control unit (SVMCU [MSS]) | 30 |
| 87 | Pneumatic pump for dynamic seat control | 30 |
| 88 | TLC [HDS] control unit Rear-end door closing control unit | 30 |
| 89 | Loading floor control unit | 40 |
| 90 | Left front reversible emergency tensioning retractor Special vehicle multifunction control unit (SVMCU [MSS]) | 40 |
| 90 | Up to 02/03 for engine 113.990 (E55 AMG): Fuel pump relay | 30 |
| 91 | Special vehicle multifunction control unit (SVMCU [MSS]) | 40 |
