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.

MUST READ: DYI – How to Check Car Fuses?

(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

Luggage Compartment Fuse Box

• 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)

Engine Compartment Fuse Box (730i (M54 & N52))

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)

Fusible Link Block

Luggage Compartment Fuses (only BMW E67 – High Security)

Luggage Compartment Fuse Holder (only BMW E68 – Hydrogen)

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.