2020 Audi A3 Service and Repair Manual

4.7 · Trusted by 14,000+ mechanics & DIYers
Regular price $29.99 USD
  • Lightning-Fast Downloads
    Optimized files — even slow connections handle it
  • Instant Search & Navigation
    Jump to any procedure or spec with one click
  • Print One or All Pages
    Bring only the pages you need to the shop
  • Covers Every System & Component
    Every procedure for the 2020 Audi A3
Sample Preview

Unlock the Full Manual

Complete repair procedures
Wiring diagrams & schematics
Torque specifications
Full search & bookmarks
$29.99
Buy 2+ Manuals, Save 20% Discount applied automatically at checkout
20% OFF
Secure Checkout
No Subscriptions
Factory-Grade Data

2020 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
  • Progressiv Sedan 4-Door
  • Premium Plus Sedan 4-Door
  • Select Convertible 2-Door
  • Dynamic Sedan 4-Door
  • S Line Convertible 2-Door
  • Technik Sedan 4-Door
  • Komfort Sedan 4-Door

Engines covered

  • 1.4L 1395CC 85Cu. In. l4 GAS DOHC Turbocharged
  • 2.0L 1984CC 121Cu. In. l4 GAS 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

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Bancontact
  • Google Pay
  • Maestro
  • Mastercard
  • PayPal
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Vehicle Safety Data

2020 Audi A3 Recalls & Complaints

NHTSA #21V19800022/03/2021Component: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER

Volkswagen Group of America, Inc. (Audi) is recalling certain 2015-2020 Audi S3 Sedan, A3 Sedan, 2016-2018 A3 Etron, 2017-2020 RS3 Sedan, and 2015-2019 A3 Cabriolet vehicles. The passenger occupant d

Consequence

A deactivated passenger air bag increases the risk of injury during a crash.

Remedy

Dealers will replace the PODS sensor mat and update the PODS control module, free of charge. Owners

NHTSA #24V11000014/02/2024Component: FUEL SYSTEM, GASOLINE

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain front-wheel drive 2015-2020 Audi A3 Sedan, 2015-2019 Audi A3 Cabriolet, 2019-2020 Volkswagen Jetta GLI, 2018 Golf Sportwagen GP, 201

Consequence

A fuel leak in the presence of an ignition source increases the risk of a fire.

Remedy

Dealers will replace the suction pump, free of charge. Final owner notification letters for Audi ow

TSB #11032194

This bulletin is informational and contains information on the various warning lamps that may appear.

TSB #11032165

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

TSB #11032137

This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool

TSB #11032131

This bulletin provides diagnostic information for the vehicle locking system.

TSB #11031064

This Reporting obligation requests that technicians contact the Technical Assistance Center (TAC) when the diagnostic tester refers to this reportin gobligation or to TPI 2033392.

TSB #11031053

This bulletin provides informaiton regarding the Universal Traffic Recorder.

TSB #11031051

This bulletin provides informaiotn about various infortainment system complaints.

TSB #11031040

This bulletin provides informaito when Apple CarPlay/Android Auto does not react to touch inputs.

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

20210817Component: ELECTRICAL SYSTEMCrash reported

The contact owns a 2020 Audi A3. The contact stated that while driving at various speeds, the vehicle would independently come to a complete stop as the brake, air bag, and seat belt warning lights wo

20210817Component: VEHICLE SPEED CONTROLCrash reported

The contact owns a 2020 Audi A3. The contact stated that while driving at various speeds, the vehicle would independently come to a complete stop as the brake, air bag, and seat belt warning lights wo

20250626Component: TIRES:SIDEWALL

Tire Brand: Continental Tire Line / Model: ProContact TX Tire Size: 225/40R18 What Happened: This is the second tire failure I’ve experienced on Continental ProContact TX tires (OEM on my 2020 Aud

20250412Component: POWER TRAIN

Car has 50,000 miles and vehicle has a bulletin on the vehicle from Audi, where the vehicle goes into limp mode and only shift through certain gears, rendering the vehicle, unable to drive and creatin

20250221Component: POWER TRAIN

The contact owns a 2020 Audi A3. The contact stated that while operating the vehicle, the transmission malfunction warning light was displayed, and the vehicle failed to shift into reverse. The vehicl

Showing the 5 most serious of 18 complaints filed with NHTSA.

All Model Years

Other Years of the Audi A3

Need a manual for a different year? Browse every Audi A3 we cover.

Explore More

More Audi Models

Browse service and repair manuals for other Audi models in our catalog.