Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2009A6 BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 45 (ELECTRICAL EQUIPMENT - GENERAL INFORMATION)
2009 Audi A6 Base
Section 45 (Electrical Equipment - General Information)
2009 Audi A6 BaseSECTION Section 45 (Electrical Equipment - General Information)
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.
- 27 - Battery, Starter, Generator, Cruise control
- Battery, General Information
- Lead-Acid Battery without Visual Indicator
- Maintenance-Free Batteries
- Maintenance-Free Batteries
- Maintenance-Free Battery with Visual Indicator
- Maintenance-Free Battery with Visual Indicator, Checking
- Absorbent Glass Mat Battery without Visual Indicator
- Absorbent Glass Mat Battery, Checking
- Central Venting System
- Battery Post and Terminal, Handling Instructions
- Battery, Visual Inspection
- Maintenance-Free Battery with Visual Indicator, Checking Color Display
- Battery Electrolyte Level, Checking
- Battery, Testing
- Battery, Testing
- Battery, Testing with Midtronics Battery/Starting/Charging System Analyzer MCR340A
- Battery - Vehicles with Energy Management Control Module, Testing with Vehicle Diagnosis, Testing and Information System VAS 5051B
- Battery No-Load Voltage - Vehicles without Energy Management Control Module, Checking
- Battery No-Load Voltage - Vehicles with Energy Management Control Module, Checking
- Battery, Load Testing with Midtronics Diagnostic Conductance Charging Station INC-940
- Battery, Charging
- Generator, Testing and Servicing
- Generator, Testing and Servicing
- Generator, Testing
- Bosch Generator, through MY 2000, Assembly Overview
- Bosch Generator, from MY 2001, Assembly Overview
- Voltage Regulator, Bosch Generator from MY 2001, Removing and Installing
- Carbon Brushes, Bosch Generator from MY 2001, Checking
- Valeo Generator, through MY 2000, Assembly Overview
- Valeo Generator, from MY 2001, Assembly Overview
- Voltage Regulator, Valeo Generator from MY 2001, Removing and Installing
- Carbon Brushes, Valeo Generator from MY 2001, Checking
- Ribbed Belt Pulley without Freewheel, Removing and Installing
- Ribbed Belt Pulley with Freewheel, Removing and Installing
- Cruise Control System, with Electronic Power Control
- 92 - Windshield wiper and washer system
- 94 - Lights, Switches - Exterior
- 96 - Lights, Switches - Interior, Anti-theft
- 97 - Wiring
- Wiring Harnesses and Connectors, Repairing
- Wiring Harnesses and Connectors, Repairing
- Vehicle Electrical System, General Information
- Wiring Harness and Connector Repairs, General Information
- Airbag and Safety Belt Tensioner Wiring, Repairing
- CAN-Bus Wiring, Repairing
- Wire, 0.25 mm with Individual Crimp Connector, Repairing
- Wire, 0.35 mm and Larger with Individual Crimp Connector, Repairing
- Wire, 0.25 mm with Intermediate Wire Section, Repairing
- Wire, 0.35 mm or Larger with Intermediate Wire Section, Repairing
- Terminal Housings and Connectors, Repairing
- Terminal Housings, Releasing and Disassembling
- Antenna Wires, Repairing
- Fiber Optic Cable
- Vehicle Diagnosis, Testing and Information Systems
- Wiring Harnesses and Connectors, Repairing
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.