2023 Audi A3 Service and Repair Manual

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Covers all 2023 A3 trims — Select Sedan 4-Door, Premium Sedan 4-Door, S Line Sedan 4-Door +2 more ·
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2023 Audi A3 service and repair manual a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What's included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Select Sedan 4-Door
  • Premium Sedan 4-Door
  • S Line Sedan 4-Door
  • Premium Plus Sedan 4-Door
  • Dynamic Sedan 4-Door

Engines covered

  • 1.4L 1395CC 85Cu. In. l4 GAS DOHC Turbocharged
  • 2.0L 1984CC 121Cu. In. l4 GAS DOHC Turbocharged
  • 2.0L 1984CC 121Cu. In. l4 MILD HYBRID EV-GAS (MHEV) DOHC Turbocharged

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams
NHTSA #22V90100007/12/2022Component: EQUIPMENT:OTHER:LABELS

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2023 Audi S3, RS3, and A3 vehicles. The Safety Certification label on the B-pillar is missing weight capacity information. As such

Consequence

Missing weight information may result in unintentional overloading of the vehicle, increasing the ri

Remedy

Audi dealers will install an overlay label, free of charge. Owner notification letters were mailed

TSB #11033492

This bulletin provides informaiotn when the starter battery is discharged or defective.

TSB #11033484

This TSB provides information when the gearbox warning light is on; event memory entry P0174A00/P174E00.

TSB #11033483

This bulletin provides information when the convenience openeing does not work.

TSB #11033476

This TSB provides information when the Airbag warning lamp lights up and event memory "B100B1B or B100A1B" is stored.

TSB #11033475

The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Adde

TSB #11033472

This bulletin describes a trim coating failure due to outside influence and not warrantable.

TSB #11033469

This bulletin provides informaiton when the windscreen/rear window washer pump is not working (B126101, B126113).

TSB #11033463

This special notice is to inform dealers to return the parts listed if it meets the criteria provided.

Showing the 8 most recent of 683 technical service bulletins on file with NHTSA.

20260505Component: SERVICE BRAKES

Dealer is refusing to acknowledge the known BSG defect (TSB 2058831/13) and is instead attempting to charge for secondary electrical failures (ABS/AC) caused by the primary charging system failure. 2

20260505Component: ELECTRICAL SYSTEM

Dealer is refusing to acknowledge the known BSG defect (TSB 2058831/13) and is instead attempting to charge for secondary electrical failures (ABS/AC) caused by the primary charging system failure. 2

20260505Component: STEERING

Dealer is refusing to acknowledge the known BSG defect (TSB 2058831/13) and is instead attempting to charge for secondary electrical failures (ABS/AC) caused by the primary charging system failure. 2

20260221Component: UNKNOWN OR OTHER

I was driving vehicle and heard a loud sound like an explosion. I looked up and there was a big hole in my sunroof. The sunroof exploded. Yes you can look at it. It proceeded to crack and glass flew

20251105Component: COMMUNICATION

Please see attachment: “Hello, my name is [XXX] . I'm I'm calling about a vehicle. Recall on an Audi 2023. And I'm having trouble with the manufacturer regarding this Notice that they sent us [XXX]

Showing the 5 most serious of 10 complaints filed with NHTSA.

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