Audi Audi S4 2016-present

Audi Audi S4 2016-present Electrical Specifications

Detailed technical specifications for the electrical system of the 2016-Present Audi S4, including wiring diagrams, voltage requirements, and component-specific electrical parameters.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the electrical specifications for the 2016-Present Audi S4, 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', '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 labeled with a clear title and subsections are organized for easy access.

Key Specifications

Battery Voltage

12.6V - 14.7V

Alternator Output

180 A at 6000 RPM

Headlight Luminous Flux

3200 lumens

Fuse Box Capacity

120A

Grounding Resistance

<0.1 ohms

Available Specifications

Battery and Charging System

Detailed information about the battery, alternator, and charging system specifications for the Audi S4

Battery Specifications

12V AGM (Absorbent Glass Mat) battery
Capacity: 70 Ah
Cold Cranking Amps (CCA): 760 A
Battery voltage range: 12.6V - 14.7V
Battery dimensions: 278mm x 175mm x 190mm

Alternator Specifications

Output: 180 A at 6000 RPM
Voltage regulation: 13.5V - 14.7V
Belt-driven alternator with integrated voltage regulator
Alternator weight: 6.8 kg
Efficiency: 85% at full load

Note: Ensure the alternator belt tension is within 500-700 N for optimal performance.

Lighting System

Technical details about the exterior and interior lighting systems, including headlights, taillights, and interior illumination

Headlight Specifications

LED Matrix headlights with dynamic turn signals
Luminous flux: 3200 lumens per headlight
Power consumption: 42W per headlight
Beam range: up to 600 meters
Adaptive lighting with cornering function

Interior Lighting

Ambient lighting with 30 color options
LED reading lights with 5W power consumption
Footwell lighting: 2W per zone
Trunk lighting: 3W LED
Illumination intensity: 500 lux at 1 meter

Fuse and Relay System

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

Fuse Box Locations

Primary fuse box: Located in the engine compartment
Secondary fuse box: Located in the dashboard, driver's side
Tertiary fuse box: Located in the trunk, left side
Fuse box access: Requires removal of protective covers

Fuse Ratings

Mini fuses: 5A, 7.5A, 10A, 15A, 20A, 25A, 30A
Maxi fuses: 40A, 50A, 60A, 70A, 80A
Relay ratings: 12V, 20A - 70A
Fuse material: Tin-plated copper
Fuse box total capacity: 120A

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

Wiring and Connectors

Details about the wiring harness, connectors, and electrical grounding points

Wiring Harness

Total wire length: ~1500 meters
Wire gauge range: 0.5mm² to 16mm²
Insulation material: Cross-linked polyethylene (XLPE)
Harness weight: 12.5 kg
Color-coded wiring for easy identification

Connectors and Grounding

Waterproof connectors with IP67 rating
Grounding points: 12 primary locations
Connector pin material: Gold-plated copper
Maximum current per pin: 20A
Grounding resistance: <0.1 ohms

Search Specifications

Search by specification name, value, or description

Component Specifications

Battery

Type: AGM (Absorbent Glass Mat)

Voltage: 12V

Capacity: 70Ah

Cold Cranking Amps: 760A

Part Number: 000915105DL

Maintenance: Maintenance-free

Replacement interval: 5 years or 60,000 miles

Safety Notes: Disconnect negative terminal first during replacement

Alternator

Type: Bosch

Output: 180A

Voltage: 14V

Part Number: 06E903023F

Efficiency: 85%

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

Replacement interval: 100,000 miles or as needed

Starter Motor

Type: Bosch

Power: 1.4kW

Voltage: 12V

Part Number: 06E911024B

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

Replacement interval: 100,000 miles or as needed

Fuse Box

Location: Driver's side dashboard

Fuse Types

Mini
Micro2
Micro3

Fuse Ratings

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

Part Number: 8W0906269A

Maintenance: Check fuses every 20,000 miles or as needed

Wiring Harness

Material: Copper with PVC insulation

Gauge Range: 0.5mm² to 6.0mm²

Operational Temperature Range: -40°C to 125°C

Part Number: 8W0971359A

Maintenance: Inspect for wear or damage every 30,000 miles

Lighting System

Headlights: Type: LED
Power: 35W
Lumen Output: 3200 lumens
Part Number: 4G0941029A
Replacement interval: 50,000 miles or as needed

Taillights: Type: LED
Power: 10W
Lumen Output: 500 lumens
Part Number: 8W0945095A
Replacement interval: 50,000 miles or as needed

Fog Lights: Type: Halogen
Power: 55W
Lumen Output: 1200 lumens
Part Number: 4H0941699A
Replacement interval: 30,000 miles or as needed

Sensors

Oxygen Sensor: Type: Wideband
Operational Temperature Range: -40°C to 900°C
Part Number: 06E906262L
Replacement interval: 100,000 miles or as needed

Crankshaft Position Sensor: Type: Hall Effect
Operational Temperature Range: -40°C to 150°C
Part Number: 06E907407A
Replacement interval: 100,000 miles or as needed

Camshaft Position Sensor: Type: Hall Effect
Operational Temperature Range: -40°C to 150°C
Part Number: 06E907407A
Replacement interval: 100,000 miles or as needed

Control Modules

Engine Control Module: Type: Bosch MED17.1
Operational Voltage: 12V
Part Number: 8K0907115B
Operational Temperature Range: -40°C to 85°C
Replacement interval: Lifetime, replace as needed

Transmission Control Module: Type: Bosch
Operational Voltage: 12V
Part Number: 0B5927156A
Operational Temperature Range: -40°C to 85°C
Replacement interval: Lifetime, replace as needed

Body Control Module: Type: Bosch
Operational Voltage: 12V
Part Number: 8K0907063C
Operational Temperature Range: -40°C to 85°C
Replacement interval: Lifetime, replace as needed

Charging System

Charging Voltage: 14.2V to 14.8V

Charging Current: 180A

Alternator Belt Tension: 500-700N

Belt Part Number: 06E903137A

Maintenance: Inspect belt every 20,000 miles

Diagnostic System

Diagnostic Port: Type: OBD-II
Location: Under dashboard, driver's side
Protocols: ISO 15765-4 (CAN), ISO 14230-4 (KWP2000), ISO 9141-2
Part Number: 4F0907381A

Diagnostic Tools

VCDS (VAG-COM)
ODIS (Offboard Diagnostic Information System)

Diagnostic Codes

P0001-P2999 (Engine)
C0001-C2999 (Chassis)
B0001-B2999 (Body)

Service Information Service

Detailed service requirements and schedules for the electrical system

10,000

Inspect battery terminals for corrosion
Check alternator belt tension
Inspect wiring harness for wear or damage

Perform visual inspection and clean terminals if necessary

20,000

Test battery voltage and charging system
Inspect fuses and replace if necessary
Check lighting system functionality

Use a multimeter to test voltage and charging system

30,000

Inspect and clean all electrical connections
Check sensor functionality using diagnostic tools
Inspect alternator and starter motor

Use diagnostic tools to verify sensor operation

50,000

Replace battery if necessary
Inspect and replace alternator belt if worn
Check control modules for error codes

Replace battery if voltage drops below 12V

100,000

120

Replace oxygen sensor
Inspect and replace crankshaft and camshaft sensors if necessary
Perform comprehensive diagnostic check

Replace sensors if diagnostic codes indicate failure

Frequently Asked Questions

Find answers to common questions about torque specifications

What is the voltage of the 2016-Present Audi S4's electrical system?

The 2016-Present Audi S4 operates on a 12-volt electrical system. The battery is a 12V AGM (Absorbent Glass Mat) type, typically rated at 70Ah and 680A (EN).

What is the alternator output for the Audi S4?

The alternator in the 2016-Present Audi S4 has an output of 180A at 14V. This ensures sufficient power for the vehicle's advanced electrical systems, including the MMI (Multi Media Interface) and driver assistance features.

How do I reset the battery management system (BMS) after replacing the battery?

After replacing the battery, the BMS must be reset using a diagnostic tool such as VCDS (VAG-COM Diagnostic System) or ODIS (Offboard Diagnostic Information System). This ensures the system recognizes the new battery and optimizes charging parameters.

What is the fuse rating for the Audi S4's headlight system?

The low-beam headlights on the 2016-Present Audi S4 are protected by 15A fuses. The high-beam headlights use 10A fuses. Always refer to the fuse diagram in the owner's manual for precise locations.

Can I upgrade the Audi S4's electrical system for aftermarket accessories?

Upgrading the electrical system for aftermarket accessories is possible but requires careful planning. Ensure the alternator and battery can handle the additional load. Use a dedicated fuse and relay setup to avoid overloading the factory wiring. Consult an Audi-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.

Audi S4 Electrical System Overview

Coming Soon

Detailed guide covering the 12V electrical system, battery specifications, and alternator output for the 2016-Present Audi S4.

Battery Replacement and BMS Reset Procedure

Coming Soon

Step-by-step instructions for replacing the AGM battery and resetting the Battery Management System (BMS) using diagnostic tools.

Fuse Box Diagram and Specifications

Coming Soon

Comprehensive fuse box diagram with fuse ratings and locations for the 2016-Present Audi S4.

Alternator Testing and Troubleshooting

Coming Soon

Guide to testing the alternator output and diagnosing common electrical issues in the Audi S4.

About the Author

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Alan Montanye

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