BMW M5 2005-2010

BMW M5 2005-2010 Electrical Specifications

Detailed technical specifications for the electrical system of the 2005-2010 BMW M5, covering wiring diagrams, component locations, voltage requirements, and diagnostic procedures for the S85 V10 engine and advanced electronics.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the electrical specifications for the 2005-2010 BMW M5, including key features, measurements, and technical details. This section covers the vehicle's electrical system, including the battery, alternator, wiring, and control modules.

How to Use

Use the search function to locate specific electrical specifications by entering keywords such as 'battery voltage', 'alternator output', or 'fuse ratings'.

Navigate through the electrical documentation sections using the table of contents or by scrolling through the document. Each major section is clearly labeled for easy access.

Key Specifications

Battery Voltage

12V

Alternator Output

180A

Fuse Rating Range

5A to 40A

ECM Memory

2MB Flash

Relay Contact Rating

30A

Available Specifications

Battery and Charging System

This section provides detailed information about the battery, alternator, and charging system specifications for the 2005-2010 BMW M5.

Battery Specifications

Battery type: AGM (Absorbent Glass Mat)
Battery voltage: 12V
Battery capacity: 90Ah
Cold cranking amps (CCA): 850A
Battery dimensions: 353mm x 175mm x 190mm

Alternator Specifications

Alternator type: Bosch 180A
Output voltage: 14.4V
Maximum output current: 180A
Alternator weight: 6.8kg
Pulley diameter: 55mm

Note: The alternator is designed to maintain optimal charging under high electrical loads.

Wiring and Connectors

This section covers the wiring harnesses, connectors, and electrical routing for the 2005-2010 BMW M5.

Main Wiring Harness

Harness length: 12.5 meters
Wire gauge range: 0.5mm² to 16mm²
Number of connectors: 48
Harness weight: 8.2kg
Insulation material: Cross-linked polyethylene

Connector Types

Waterproof connectors: IP67 rated
Connector material: Thermoplastic
Pin count range: 2 to 12 pins
Operating temperature range: -40°C to 120°C
Color coding: Standardized for easy identification

Note: All connectors are designed for durability and resistance to environmental factors.

Control Modules and Sensors

This section details the electronic control modules (ECUs) and sensors used in the 2005-2010 BMW M5.

Engine Control Module (ECM)

Processor: 32-bit RISC
Operating voltage: 12V
Memory capacity: 2MB Flash, 128KB RAM
Operating temperature: -40°C to 85°C
Communication protocol: CAN bus

Sensors

Oxygen sensor type: Wideband
Temperature sensor range: -40°C to 150°C
Crankshaft position sensor: Hall effect
Throttle position sensor: Potentiometer
Knock sensor frequency range: 5kHz to 20kHz

Note: Sensors are calibrated for high precision and reliability under extreme conditions.

Fuses and Relays

This section provides information about the fuse and relay systems in the 2005-2010 BMW M5.

Fuse Box Layout

Total fuses: 42
Fuse ratings: 5A to 40A
Fuse type: Mini blade
Fuse box location: Under the glove compartment
Fuse material: Zinc alloy

Relay Specifications

Relay type: SPDT (Single Pole Double Throw)
Coil voltage: 12V
Contact rating: 30A
Operating temperature: -40°C to 85°C
Relay material: Thermoplastic housing

Note: Relays are designed for high durability and low power consumption.

Search Specifications

Search by specification name, value, or description

Component Specifications

Battery

Type: AGM (Absorbent Glass Mat)

Voltage: 12V

Capacity: 90Ah

Cold Cranking Amps: 850A

Part Number: 61217590410

Maintenance: Maintenance-free

Replacement interval: 5 years or 60,000 miles

Alternator

Type: Bosch

Output: 180A

Voltage: 14V

Part Number: 12317838765

Operational Temperature Range: -40°C to 120°C

Replacement interval: 100,000 miles

Starter Motor

Type: Bosch

Power: 1.7kW

Voltage: 12V

Part Number: 12411739997

Operational Temperature Range: -40°C to 120°C

Replacement interval: 100,000 miles

Ignition System

Spark Plugs: Type: Iridium
Gap: 0.8mm
Part Number: 12120037664
Replacement interval: 60,000 miles

Ignition Coils: Type: Bosch
Resistance: 0.4-0.6 ohms
Part Number: 12137548073
Replacement interval: 100,000 miles

Ignition Wires: Type: High-performance silicone
Resistance: 5-10 kOhms/m
Part Number: 12131748072
Replacement interval: 100,000 miles

Lighting System

Headlights: Type: Xenon HID
Wattage: 35W
Color Temperature: 4300K
Part Number: 63127169785
Replacement interval: 5 years or 60,000 miles

Taillights: Type: LED
Wattage: 10W
Part Number: 63217212345
Replacement interval: 10 years or 100,000 miles

Fog Lights: Type: Halogen
Wattage: 55W
Part Number: 63127169786
Replacement interval: 5 years or 60,000 miles

Fuse Box

Location: Under the hood and in the trunk

Fuse Types

Mini
Standard
Maxi

Fuse Ratings

Main Fuse: 120A

Part Number: 61136912345

Wiring Harness

Material: Copper with PVC insulation

Wire Gauge

18 AWG
16 AWG
14 AWG
12 AWG

Color Coding: Standard BMW color codes

Part Number: 61126912345

Replacement interval: Lifetime (inspect every 30,000 miles)

Sensors

Oxygen Sensor: Type: Wideband
Part Number: 11787548073
Replacement interval: 100,000 miles

Crankshaft Position Sensor: Type: Magnetic
Part Number: 12147548073
Replacement interval: 100,000 miles

Camshaft Position Sensor: Type: Hall Effect
Part Number: 12147548074
Replacement interval: 100,000 miles

Control Modules

Engine Control Module: Type: Bosch ME9.2
Part Number: 12347548073
Operational Voltage: 12V
Replacement interval: Lifetime (inspect every 30,000 miles)

Transmission Control Module: Type: Bosch
Part Number: 12347548074
Operational Voltage: 12V
Replacement interval: Lifetime (inspect every 30,000 miles)

Body Control Module: Type: Bosch
Part Number: 12347548075
Operational Voltage: 12V
Replacement interval: Lifetime (inspect every 30,000 miles)

Diagnostic System

Diagnostic Port: Type: OBD-II
Location: Under the dashboard
Protocols: ISO 9141-2, ISO 14230-4, ISO 15765-4
Part Number: 61126912346

Diagnostic Tools

BMW DIS
INPA
ISTA

Diagnostic Codes

P0001-P2999
B0001-B2999
C0001-C2999
U0001-U2999

Service Information Service

Detailed service requirements and schedules for the electrical system

30,000

Inspect battery terminals and connections
Check alternator output
Inspect wiring harness for wear or damage
Test all lighting components

Ensure all connections are clean and secure

60,000

Replace spark plugs
Inspect and test ignition coils
Check and replace fuses as needed
Inspect and clean all sensors

Use only BMW-approved parts for replacements

100,000

Replace battery
Replace alternator if necessary
Replace starter motor if necessary
Inspect and replace control modules if necessary

Perform a full diagnostic scan before replacing any major components

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the voltage of the battery in the 2005-2010 BMW M5?

The 2005-2010 BMW M5 is equipped with a 12-volt lead-acid battery, with a capacity of approximately 90 Ah. The battery is located in the trunk to optimize weight distribution.

What is the alternator output for the BMW M5 (E60)?

The alternator in the 2005-2010 BMW M5 has an output of 180 amps at 14 volts. This ensures sufficient power for the vehicle's high-performance electrical systems, including the S85 V10 engine's ignition and fuel injection systems.

How do I reset the battery registration after replacement?

After replacing the battery, the BMW M5 requires battery registration using a diagnostic tool such as BMW ISTA or a compatible OBD-II scanner. This ensures the vehicle's power management system (IBS) recognizes the new battery and adjusts charging parameters accordingly.

What is the fuse rating for the headlights?

The low-beam headlights on the 2005-2010 BMW M5 use 55-watt H7 bulbs and are protected by 15-amp fuses. Always replace fuses with the same rating to avoid electrical system damage.

Can I upgrade the electrical system for aftermarket accessories?

Upgrading the electrical system for aftermarket accessories is possible but requires careful consideration. The vehicle's power management system is designed for specific loads, and adding high-power accessories may require additional wiring, relays, or a secondary battery. Consult a BMW-certified technician for proper installation.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW M5 Electrical System Overview

Coming Soon

A detailed guide to the electrical system of the 2005-2010 BMW M5, including wiring diagrams and component locations.

Battery Replacement and Registration Guide

Coming Soon

Step-by-step instructions for replacing the battery and performing battery registration on the BMW M5.

Fuse Box Diagram and Specifications

Coming Soon

A comprehensive diagram of the fuse box layout and fuse ratings for the 2005-2010 BMW M5.

Alternator Testing and Replacement

Coming Soon

Guidelines for testing and replacing the alternator in the BMW M5, including troubleshooting tips.

About the Author

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