BMW 7-Series (E65, E66, E67, E68) fuse box and relay Diagrams (2002-2008)
The BMW 7-Series E65, E66, E67, E68 is first introduced in 2002 as a flagship luxury sedan. It is BMW’s fourth-generation 7-Series and featured several technological advancements, including iDrive, a new integrated navigation system, and a host of electronic driver aids. The E65 is also notable for its controversial styling, which included the “Bangle Butt” rear-end design. This generation of the 7-Series is produced until 2008 and is available in both short and long-wheelbase versions.
One critical aspect of the BMW 7-Series E65, E66, E67, and E68 is its electrical system. The car comes with various electrical components that are essential for its proper functioning. Among these components are the fuse box and relay, which help to distribute electrical power to various systems in the car. Understanding the fuse box and relay diagrams, as well as their locations, is crucial for maintaining and troubleshooting the car’s electrical system.
Engine and Transmission
The BMW 7-Series E65, E66, E67, and E68 come with a range of engine and transmission options. The base engine is a 3.0-liter inline-six producing 225 horsepower, while the top-of-the-line engine is a 6.0-liter V12 producing 438 horsepower. Transmission options include a six-speed manual and a six-speed automatic with manual shifting mode. The car also features BMW’s Dynamic Stability Control, which includes traction control, dynamic traction control, and dynamic brake control.
Fuse Box and Relay Locations
The BMW 7-Series E65, E66, E67, and E68 come with two fuse boxes located in the glove box and the trunk. The glove box fuse box houses the fuses for various systems, including the climate control system, navigation system, and audio system. The trunk fuse box contains the fuses for the car’s battery and the rear power distribution box.
The car also has several relays located in different positions. The relays control various systems, including the air conditioning compressor, radiator fan, fuel pump, and windshield wipers. The relays are located in the power distribution box in the trunk, behind the passenger’s rear seat, and under the hood near the battery.
(2002-2008) BMW 7-Series (E65, E66, E67, E68) fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
BMW 7-Series (E65, E66, E67, E68) 2002-2008 fuse assignment
Passenger Compartment Fuse Box
| No. | Amps | Assignment/Designation |
| 1 | 20A | Independent/Auxiliary Heating Control Unit |
| 2 | 5A | Antenna Tuner, Digital Tuner (USA) |
| 3 | 30A | Chassis Integration Module (CIM) |
| 4 | – | – |
| 5 | 7.5A | Control Display, Control Unit for Rear Compartment Display, Centre Console Control Centre, Phoneboard, Rear Compartment Centre Console Control Centre |
| 6 | 5A | CD Changer |
| 7 | 7.5A | Active Cruise Control (ACC) Control Unit |
| 8 | 10A | Dynamic Drive Control Unit |
| 9 | 5A | Tyre Pressure Control (RDC) Control Unit |
| 10 | 15A | A/C Control Unit |
| 11 | 7.5A | Rear Compartment Monitor |
| 12 | 20A | Steering Column Switch Cluster |
| 13 | 5A | Electronic Damper Control (EDC) Control Unit |
| 14 | 15A | Electronic Damper Control Power-Saving Relay |
| 15 | 15A | Safety Information Module (SIM (→02.2004)), Driver’s Seat Satellite, Passenger’s Seat Satellite, Central Gateway Module (ZGM (→02.2004)), Safety and Gateway Module (03.2004→) |
| 16 | – | – |
| 17 | 5A | Dynamic Stability Control (DSC) Control Unit, Light Switch Unit |
| 18 | 5A | Adaptive Headlight |
| 19 | 30A | Rear Left Door Module |
| 20 | 25A | Dynamic Stability Control (DSC) Control Unit |
| 21 | 30A | Front Left Door Module |
| 22 | 15A | N52, M54, M57, M67: Mechatronics (EGS) |
| 23 | 30A | Front Left Seat Module (LHD), Front Right Seat Module (RHD) |
| 24 | 10A | Electronic Night Vision Module |
| 25 | – | – |
| 26 | – | – |
| 27 | – | – |
| 28 | 15A | Instrument Cluster |
| 29 | 7.5A | OBD2 Socket |
| 30 | 5A | Hydrogen: Clean Energy Module |
| 10A | M57: Electronic Damper Control Power-Saving Relay, Fuel Heater Relay, Starter Relay, E-Box Fan, Crankshaft Breather Heating (TU2), Exhaust Flap (TU2) | |
| 10A | M67: Electronic Damper Control Power-Saving Relay, Fuel Heater Relay, Starter Relay, E-Box Fan | |
| 10A | M54, N52: Electronic Damper Control Power-Saving Relay, Exhaust Flap, Starter Relay, E-Box Fan, Secondary Air Pump Relay (M54) | |
| 31 | 20A | Front Cigar Lighter, Rear Cigarette Lighter |
| 32 | 20A | Rear Charging Socket, Front Socket (09.2006→) |
| 33 | 7.5A | Instrument Cluster, Car Access Control Unit (03.2005→) |
| 34 | 5A | Antenna Amplifier with Remote Control Receiver, Integrated Supply Module (IVM (03.2005→) – N62, N73, Alpina), Clean Energy Module (09.2006→) |
| 35 | 40A | Wiper Module |
| 36 | 50A | Light Module |
| 37 | 40A | Blower Output Stage |
| 38 | – | – |
| 39 | 50A | Dynamic Stability Control (DSC) Control Unit |
| 40 | 60A | N62, Alpina, N73, Hydrogen: Integrated Supply Module (IVM) |
| 60A | M54: Digital Motor Electronics (DME) Control Unit, DME Relay, Fuse No.: “01”, “02”, “03”, “04”, “05” | |
| 60A | N52: Digital Motor Electronics (DME) Control Unit, DME Relay, Fuse No.: “05”, “09”, “010” | |
| 41 | 50A | M57, M67: Fuel Heater Relay |
| 42 | 50A | Car Access Control Unit |
| 43 | 50A | Cigar Lighter Relay |
| 44 | 50A | →02.2003: Light Module |
Luggage Compartment Fuse Box
| No. | Amps | Assignment/Designation |
| 51 | 15A | Wiper Park Position Heating Relay |
| 52 | 15A | Cooler Box |
| 53 | 5A | Antenna Amplifier with Remote Control Receiver |
| 54 | 5A | Comfort Access Control Unit |
| 55 | 30A | Rear Compartment Seat Heating Control Unit |
| 56 | 30A | Front Right Seat Module (LHD), Front Left Seat Module (RHD) |
| 57 | 15A | Rear Seat Satellite |
| 58 | 30A | Front Right Door Module |
| 59 | 5A | Parking Brake Control Unit (PBR) |
| 60 | 30A | Rear Right Door Module |
| 61 | 30A | Parking Brake Control Unit (PBR) |
| 62 | 30A | Air Supply System (Air Suspension) |
| 63 | 20A | Sunroof Module |
| 20A | E67: Flashing Beacon Switch | |
| 64 | – | – |
| 65 | 30A | HiFi Amplifier, Audio System Controller, Headset Interface |
| 66 | 20A | Trailer Socket |
| 20A | Sunroof Module | |
| 20A | E67: Flashing Beacon Switch | |
| 67 | 30A | Trailer Module |
| 30A | Hydrogen: Electric Water Pump | |
| 68 | – | – |
| 69 | 5A | E67: Pinpuller Control Unit (Windscreen Emergency Exit) |
| 70 | – | – |
| 71 | 5A | Luggage Compartment Fan Relay |
| 72 | 7.5A | Air Suspension Control Unit |
| 73 | 20A | Right B-Pilar Satellite |
| 74 | 30A | Trailer Module |
| 75 | 30A | Rear Right Seat Module (LHD), Rear Left Seat Module (RHD) |
| 76 | 10A | Navigation Control Unit, Video Module, Multimedia Changer, Digital Tuner (except Japan), Satellite Receiver (except Japan), VICS Receiver (→08.2003 – Japan) |
| 77 | 5A | Rear Compartment Air Conditioning Control Unit |
| 78 | 30A | Rear Left Seat Module (LHD), Rear Right Seat Module (RHD) |
| 79 | 10A | except Japan: Telephone Transceiver, Voice Input Control Unit, Mobile Phone (Compensator), Autarkic Rear Compartment Telephone |
| 10A | Japan: Flexible Bus Interface (FBI), JBIT II (Noise Suppressor Filter), Voice Input Control Unit | |
| 80 | 40A | 09.2006→: Air Supply System Relay (Air Compressor) |
| 81 | 50A | Boot Lid/Tailgate Module |
| 82 | – | – |
| 83 | 40A | Rear Compartment Air Conditioning Blower Output Stge |
| 84 | – | – |
- Models:
E65 – Basic
E66 – Long
E67 – High Security
E68 – Hydrogen - Petrol Engines:
M54, N52 – 730i, 730Li
N62 – 735i, 740i, 745i, 750i / 735Li, 740Li, 745Li, 750Li
H1 – Alpina B7
N73 – 760i & 760Li, Hydrogen 7 - Diesel Engines:
M57 – 730d, 730Ld
M67 – 740d, 745d
Integrated Supply Module (IVM) (N62, N73, Alpina)
| No. | Amps | Assignment/Designation |
| 001 | 30A | N73: Digital Motor Electronics (DME) Module No.1, Variable Valve Timing Gear Control Unit, HDEV Control Unit, Return Flow Shut-Off Valve, High Pressure Pump, Characteristic Map Thermostat |
| 30A | N62, Alpina: Fuel Injector: “5”, “6”, “7”, “8”, Digital Motor Electronics (DME) Module, Variable Valve Timing Gear Control Unit | |
| 30A | Hydrogen: Variable Valve Timing Gear Control UNit, Digital Motor Electronics (DME) Module No.1, H2 and HDEV Control Unit, Return Flow Shut-Off Valve, High Pressure Pump, Characteristic Map Thermostat | |
| 002 | 20A | N73: Charcoal Filter Valve, Crankshaft Sensor, Intake Camshaft Sensor, Exhaust Camshaft Sensor, Air Mass Flow Sensor, Intake VANOS Solenoid Valve, Exhaust VANOS Solenoid Valve, Auxiliary Air Flap Valve |
| 20A | N62, Alpina: Fuel Tank Vent Valve, Intake Camshaft Sensor No.2, Exhaust Camshaft Sensor No.2, Intake VANOS Solenoid Valve No.2, Exhaust VANOS Solenoid Valve No.2 | |
| 20A | Hydrogen: Charcoal Filter Valve, Crankshaft Sensor, Intake Camshaft Sensor, Exhaust Camshaft Sensor, Air Mass Flow Sensor, Intake VANOS Solenoid Valve, Exhaust VANOS Solenoid Valve, Auxiliary Air Flap Valve | |
| 003 | 20A | N73: Ignition Coil: “1”, “2”, “3”, “4”, “5”, “6” |
| 20A | N62, Alpina: Ignition Coil: “1”, “2”, “3”, “4” | |
| 20A | Hydrogen: Ignition Coil: “1”, “2”, “3”, “4”, “5”, “6”, Interference Suppression Capacitor for Ignition Coils, Engine Breather Heater | |
| 004 | 20A | N73: Ignition Coil: “7”, “8”, “9”, “10”, “11”, “12” |
| 20A | N62, Alpina: Ignition Coil: “5”, “6”, “7”, “8” | |
| 20A | Hydrogen: Ignition Coil: “7”, “8”, “9”, “10”, “11”, “12”, Interference Suppression Capacitor No.2 for Ignition Coils, Engine Breather Heater No.2 | |
| 005 | 30A | N73: Digital Motor Electronics (DME) Module No.2, HDEV Control Unit No.2, High Pressure Pump No.2 |
| 30A | N62, Alpina: Crankshaft Sensor, Hot-Film Air Mass Meter, Intake Camshaft Sensor, Exhaust Camshaft Sensor, Characteristic Map Thermostat, Intake VANOS Solenoid Valve, Exhaust VANOS Solenoid Valve | |
| 30A | Hydrogen: Digital Motor Electronics (DME) Module No.2, H2 and HDEV Control Unit No.2, High Pressure Pump No.2, H2 Pressure Regulator, H2 Pressure Regulator Diode | |
| 006 | 20A | N73, Hydrogen: Fuel Tank Vent Valve No.2, Intake Camshaft Sensor No.2, Exhaust Camshaft Sensor No.2, Air Mass Flow Sensor No.2, Intake VANOS Solenoid Valve No.2, Exhaust VANOS Solenoid Valve No.2 |
| 20A | N62, Alpina: Fuel Injector: “1”, “2”, “3”, “4” | |
| 007 | 20A | N62, Alpina, N73, Hydrogen: Mechatronics (EGS) |
| 008 | 30A | N62, Alpina, N73, Hydrogen: Oil Quality Sensor, Oxygen Sensor after Catalytic Converter, Oxygen Sensor No.2 after Catalytic Converter, Oxygen Sensor before Catalytic Converter, Oxygen Sensor No.2 before Catalytic Converter |
| 009 | 10A | N73: Electronic Damper Control Power-Saving Relay, Exhaust Flap, Pressure Damper Vent Valve, E-Box Fan, Fuel Tank Leakage Diagnostic Module, Secondary Air Pump Relay (→08.2006) |
| 10A | N62, Alpina: Electronic Damper Control Power-Saving Relay, Exhaust Flap, E-Box Fan, Fuel Tank Leakage Diagnostic Module, Secondary Air Pump Relay (→08.2006) | |
| 10A | Hydrogen: Electronic Damper Control Power-Saving Relay, Exhaust Flap, E-Box Fan, Pressure Damper Vent Valve, Fuel Tank Leakage Diagnostic Module (USA) | |
| 010 | 40A | N62, Alpina, N73: Variable Valve Timing Gear Control Unit |
| 011 | 40A | N62, Alpina, N73: Variable Valve Timing Gear Control Unit |
Engine Compartment Fuse Box (730i (M54 & N52))
| No. | Amps | Assignment/Designation |
| 01 | 30A | M54: Ignition Coils |
| 30A | N52: Interference Suppression Capacitor for Ignition Coils | |
| 02 | 30A | M54: Individual Control Intake System Valve, Digital Motor Electronics (DME) Control Unit, Fuel Tank Vent Valve, Idle Actuator, Intake VANOS Solenoid Valve, Exhaust VANOS Solenoid Valve |
| 30A | N52: Electric Coolant Pump, Characteristic Map Cooling Thermostat, Intake Camshaft Sensor, Exhaust Camshaft Sensor, Intake VANOS Solenoid Valve, Exhaust VANOS Solenoid Valve | |
| 03 | 20A | M54: Air Mass Flow Senosr, Crankshaft Sensor, Camshaft Sensor 1 & 2, Characteristic Map Cooling Thermostat |
| 20A | M54: Oxygen Sensor After Catalytic Converter, Oxygen Sensor No.2 after Catalytic Converter, Oxygen Sensor before Catalytic Converter, Oxygen Sensor No.2 before Catalytic Converter | |
| 04 | 30A | N52: Crankshaft Breather Heating, Oxygen Sensor After Catalytic Converter, Oxygen Sensor No.2 after Catalytic Converter, Oxygen Sensor before Catalytic Converter, Oxygen Sensor No.2 before Catalytic Converter |
| 30A | M54: Air Mass Flow Sensor, Crankshaft Sensor, Camshaft Sensor 1 & 2, Characteristic Map Cooling Thermostat | |
| 05 | 30A | Fuel Injectors Relay |
| only N52 | ||
| 06 | 10A | (Location) Fuse No.: “30” |
| 07 | 40A | (Location) Variable Valve Timing (VVT) Relay |
| 09 | 30A | (Location) Electric Coolant Pump |
| 010 | 5A | (Location) Engine Breather Heating Relay |
| Relay | ||
| R1 | Digital Motor Electronics (DME) | |
| R2 | Fuel Injectors | |
| R3 | N52: (Location) Variable Valve Timing (VVT) | |
| R4 | N52: (Location) Crankcase Ventilation Heater | |
Engine Compartment Fuse Box (M57, M67)
| No. | Amps | Assignment/Designation |
| 01 | 20A | M57: Charger Control Solenoid Valve, Rail Pressure Control Valve, Volume Control Valve, Hot-Film Air Mass Meter, Camshaft Hall-Effect Sensor |
| 20A | M57: Boost Pressure Adjuster, Rail Pressure Control Valve, Volume Control Valve, Throttle Valve, Camshaft Hall-Effect Sensor | |
| 30A | M67: Digital Diesel Electronics (DDE) Control Unit | |
| 02 | 20A | M57: Engine Mount Electrical Changeover Valve, Exhaust Gas Recirculation Solenoid Valve, Swirl Flaps Electric Changeover Valve, Crankshaft Breather Heating, Preheating Control Unit, Oil Level Sensor |
| 20A | M57: Engine Mount Electrical Changeover Valve No.1 & 2, Exhaust Gas Recirculation Solenoid Valve, Swirl Flaps Electric Changeover Valve, Preheating Control Unit, Oil Level Sensor, Oxygen Sensor before Catalytic Converter | |
| 30A | M67: Speed (RPM) Sensor, Engine Mount Electrical Changeover Valve, Exhaust Gas Recirculation Solenoid Valve, Rail Pressure Control Valve, Preheating Control Unit, Boost Pressure Juster, Volume Control Valve, Air Mass Flow Sensor, Camshaft Hall-Effect Sensor | |
| 03 | 30A | M57: Digital Diesel Electronics (DDE) Control Unit |
| 04 | 30A | M67: Oil Level Sensor, Exhaust Gas Recirculation Solenoid Valve No.2, Boost Pressure Juster No.2, Air Mass Flow Sensor No.2 |
| 05 | 30A | M67: Digital Diesel Electronics (DDE) Control Unit |
| only M67 | ||
 |
||
| 1a | 30A | Digital Diesel Electronics (DDE) Control Unit No.1 (Master) |
| 2a | 30A | Oxygen Sensor before Catalytic Converter, Boost Pressure Adjuster No.1 |
| 3a | 30A | Exhaust Gas Recirculation Solenoid Valve, Rail Pressure Control Valve, Throttle Valve No.2 |
| 4a | 30A | Crankshaft Sensor, Volume Control Valve, Camshaft Hall-Effect Sensor No.1 |
| 5a | 30A | Swirl Flap Actuator |
| 1b | 30A | Exhaust Gas Recirculation Solenoid Valve No.2, Throttle Valve No.1 |
| 2b | – | – |
| 3b | 30A | Oil Condition Sensor, Engine Mount Electrical Changeover Valve, Preheating Control Unit |
| 4b | 30A | Boost Pressure Adjuster No.2, Oxygen Sensor No.2 before Catalytic Converter |
| 5b | 30A | Digital Diesel Electronics (DDE) Control Unit No.2 (Slave) |
Power Distribution Box (except E67)
| No. | Amps | Assignment/Designation |
| (Location) | ||
| 101 | 100 | N62, N73: Integrated Supply Module (IVM) |
| 5A | N52: Fuse No.: “010” | |
| 102 | 50A | M54, N62, N73: Secondary Air Pump Relay |
| 100A | M67: Preheating Control Unit | |
| 103 | 80A | Electric Fan |
| 104 | 100A | N62, N73: Integrated Supply Module (IVM) |
| 100A | M57: Digital Diesel Electronics (DDE) Relay | |
| 100A | M67: Digital Diesel Electronics (DDE) Relay No.1 & No.2 | |
Fusible Link Block
| No. | Amps | Assignment/Designation |
| 200 | 250A | (Location) Fuse No.: “101”, “102”, “103”, “104” |
Luggage Compartment Fuses (only BMW E67 – High Security)
| No. | Amps | Assignment/Designation |
| Fuse Box No.2 | ||
| 101 | 100A | Integrated Supply Module (IVM) |
| 102 | 50A | Secondary Air Pump Relay |
| 103 | 80A | Electric Fan |
| 104 | 100A | Integrated Supply Module (IVM) |
| Fuse Box No.3 | ||
| 150 | 5A | Auxiliary Control Unit No.1 |
| 151 | 5A | Auxiliary Control Unit No.2 |
| 152 | – | – |
| 153 | 15A | Auxiliary Control Unit No.1 (Window Defogger) |
| 154 | – | – |
| 155 | 20A | Auxiliary Control Unit No.1 (Window Defogger) |
| 156 | 10A | Auxiliary Control Unit No.1 (Power Window) |
| 157 | 10A | Auxiliary Control Unit No.2 |
| 158 | 20A | Auxiliary Control Unit No.1 (Window Defogger) |
| 159 | 7.5A | Tone Sequence Control Unit |
| 160 | 15A | Tone Sequence Control Unit |
| 161 | 7.5A | Auxiliary Control Unit No.2 (Radio) |
| 162 | 7.5A | Auxiliary Control Unit No.2 (Radio) |
| 163 | 7.5A | Auxiliary Control Unit No.1 |
| 164 | 5A | Pinpuller Control Unit (Windscreen Emergency Exit) |
| 165 | 15A | Luggage Compartment Partment Socket Outlet |
| Fuse Box No.4 | ||
| 100 | 80A | (Location) Hydraulic Pump Relay |
Luggage Compartment Fuse Holder (only BMW E68 – Hydrogen)
| No. | Amps | Assignment/Designation |
| 150 | 20A | (Location) Clean Energy Module |
| 151 | 20A | (Location) Clean Energy Module |
The BMW 7-Series E65, E66, E67, and E68 is an iconic luxury sedan that comes with various technological advancements and a range of engine and transmission options. Its electrical system is critical to its proper functioning, and understanding the fuse box and relay diagrams with their locations is crucial for maintaining and troubleshooting the car. As such, it is essential to have a basic understanding of the electrical components in the car to enjoy its luxury and high-performance capabilities.