BMW 650i 2012-2017

BMW 650i 2012-2017 Electrical Specifications

Detailed technical specifications for the electrical system of the 2012-2017 BMW 650I, including wiring diagrams, fuse layouts, and component-specific data.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the electrical specifications for the 2012-2017 BMW 650I, including key features, measurements, and technical details

How to Use

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

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

Key Specifications

Battery Voltage

12V

Alternator Output

180A

Headlight Wattage

35W

Fuse Rating Range

5A - 80A

Wire Gauge Range

0.5mm² - 6.0mm²

Available Specifications

Battery and Charging System

Detailed information about the battery specifications, charging system components, and related electrical measurements

Battery Specifications

Battery type: AGM (Absorbent Glass Mat)
Battery voltage: 12V
Battery capacity: 90Ah
Cold cranking amps (CCA): 850A

Charging System

Alternator output: 180A
Charging voltage range: 13.5V - 14.8V
Regulator type: Integrated into the alternator
Battery monitoring system: IBS (Intelligent Battery Sensor)

Note: Ensure the alternator belt tension is within 500-600 N for optimal performance.

Fuse and Relay System

Information about the fuse box locations, fuse ratings, and relay functions

Fuse Box Locations

Primary fuse box: Located in the glove compartment
Secondary fuse box: Located in the trunk
Engine compartment fuse box: Located near the battery

Fuse Ratings

Standard fuse ratings: 5A, 7.5A, 10A, 15A, 20A, 25A, 30A
High-current fuses: 40A, 50A, 60A, 80A
Mini fuses: Used for low-power circuits

Note: Always replace fuses with the same rating to avoid electrical damage.

Lighting System

Technical details about the exterior and interior lighting systems, including bulb types and wattages

Exterior Lighting

Headlight type: Bi-Xenon with adaptive lighting
Headlight wattage: 35W
Daytime running lights: LED, 12W
Tail light bulbs: LED, 5W

Interior Lighting

Dome light: LED, 3W
Reading lights: LED, 2W
Ambient lighting: RGB LED, 1.5W per zone

Note: LED bulbs are not user-replaceable and require professional service.

Wiring and Connectors

Details about the wiring harness, connectors, and grounding points

Wiring Harness

Main harness material: Copper with PVC insulation
Wire gauge range: 0.5mm² to 6.0mm²
Harness routing: Secured with nylon ties and clips
Shielded cables: Used for CAN bus and sensor signals

Connectors and Grounding

Connector types: AMP, Tyco, and Deutsch
Grounding points: Located on the chassis and engine block
Corrosion protection: Dielectric grease applied at factory

Note: Inspect connectors for corrosion during routine maintenance.

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: 61212353810

Maintenance: Maintenance-free

Replacement interval: 5 years or 60,000 miles

Alternator

Type: Bosch

Output: 180A

Voltage: 14V

Part Number: 12317848234

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

Replacement interval: 100,000 miles

Starter Motor

Type: Bosch

Power: 1.4kW

Voltage: 12V

Part Number: 12417848235

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

Replacement interval: 100,000 miles

Fuse Box

Location: Passenger side, under glove compartment

Fuse Types

Mini
Micro2
Micro3

Fuse Ratings

5A
7.5A
10A
15A
20A
25A
30A

Main Fuse Rating: 150A

Part Number: 61317848236

Lighting System

Headlights: Type: Xenon
Wattage: 35W
Color Temperature: 4300K
Part Number: 63127848237

Taillights: Type: LED
Wattage: 10W
Part Number: 63217848238

Fog Lights: Type: Halogen
Wattage: 55W
Part Number: 63317848239

Wiring Harness

Material: Copper

insulation: PVC

Temperature Rating: -40°C to 125°C

Part Number: 61117848240

Maintenance: Inspect every 30,000 miles

Sensors

Oxygen Sensor: Type: Zirconia
Operating Temperature: 300°C to 850°C
Part Number: 11787848241
Replacement interval: 100,000 miles

Crankshaft Position Sensor: Type: Magnetic
Operating Temperature: -40°C to 150°C
Part Number: 12117848242
Replacement interval: 100,000 miles

Camshaft Position Sensor: Type: Hall Effect
Operating Temperature: -40°C to 150°C
Part Number: 12117848243
Replacement interval: 100,000 miles

Control Modules

Engine Control Module: Type: Bosch MEVD17.2
Operating Voltage: 12V
Part Number: 12347848244
Replacement interval: Lifetime (unless faulty)

Transmission Control Module: Type: ZF
Operating Voltage: 12V
Part Number: 12347848245
Replacement interval: Lifetime (unless faulty)

Body Control Module: Type: Bosch
Operating Voltage: 12V
Part Number: 12347848246
Replacement interval: Lifetime (unless faulty)

Charging System

Charging Voltage: 14.2V to 14.8V

Charging Current: Up to 180A

Battery Temperature Sensor: Type: NTC
Operating Temperature: -40°C to 120°C
Part Number: 12347848247

Alternator Pulley: Type: Overrunning Alternator Pulley (OAP)
Part Number: 12347848248
Replacement interval: 100,000 miles

Diagnostic System

Diagnostic Port: Type: OBD-II
Location: Driver side, under dashboard
Protocols: ISO 15765-4 (CAN), ISO 14230-4 (KWP2000)

Diagnostic Tools

BMW ISTA
BMW INPA

Fault Code Storage: Up to 100 fault codes

Diagnostic interval: Every 30,000 miles or as needed

Service Information Service

Detailed service requirements and schedules

30,000 miles

24 months

Inspect battery and charging system
Check all electrical connections
Inspect wiring harness for wear or damage
Test all lighting systems

Replace any faulty components immediately

60,000 miles

48 months

Replace battery if necessary
Inspect and clean alternator and starter motor connections
Check and replace fuses as needed
Inspect and replace sensors if faulty

Perform a full diagnostic scan using BMW ISTA

100,000 miles

84 months

Replace alternator and starter motor if necessary
Inspect and replace wiring harness if necessary
Replace all sensors as per manufacturer recommendations
Perform a full system diagnostic

Ensure all control modules are functioning correctly

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the battery voltage specification for the 2012-2017 BMW 650i?

The 2012-2017 BMW 650i uses a 12-volt battery system. The nominal voltage is 12V, but the charging system operates at approximately 13.5V to 14.8V when the engine is running. The battery capacity typically ranges between 70Ah and 90Ah, depending on the specific model and optional equipment.

What is the alternator output for the BMW 650i?

The alternator in the 2012-2017 BMW 650i has an output of 180A to 220A, depending on the vehicle configuration. This ensures sufficient power for the vehicle's electrical systems, including advanced features like the iDrive system, adaptive headlights, and climate control.

How do I reset the battery registration after replacement?

After replacing the battery in a 2012-2017 BMW 650i, you must register the new battery using a BMW-specific diagnostic tool such as ISTA/D or a compatible OBD-II scanner with BMW software. This ensures the vehicle's power management system (IBS) accurately monitors and charges the new battery.

What is the fuse rating for the headlight circuit?

The headlight circuit in the 2012-2017 BMW 650i is protected by a 20A fuse. This applies to both the low beam and high beam circuits. Always use the specified fuse rating to avoid electrical damage or fire hazards.

Can I upgrade the electrical system for additional accessories?

Upgrading the electrical system for additional accessories is possible but requires careful planning. The vehicle's power distribution system is designed to handle a specific load. Adding high-power accessories may require upgrading the alternator, battery, or installing a secondary power distribution module. Consult a BMW-certified technician for proper integration.

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 650i Electrical System Overview

Coming Soon

Detailed guide covering the electrical system architecture, including wiring diagrams, component locations, and troubleshooting tips.

Battery Replacement and Registration Guide

Coming Soon

Step-by-step instructions for replacing the battery and registering it with the vehicle's power management system.

Fuse Box Layout and Specifications

Coming Soon

Comprehensive fuse box layout with fuse ratings and their corresponding circuits for the 2012-2017 BMW 650i.

Alternator Testing and Diagnostics

Coming Soon

Technical guide for testing the alternator's output and diagnosing common electrical issues related to charging.

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