2020 Audi A3 Quattro Service and Repair Manual

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Covers all 2020 A3 Quattro trims — Premium Sedan 4-Door, Progressiv Sedan 4-Door, Premium Plus Sedan 4-Door +2 more ·
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2020 Audi A3 Quattro 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

  • Premium Sedan 4-Door
  • Progressiv Sedan 4-Door
  • Premium Plus Sedan 4-Door
  • Technik Sedan 4-Door
  • Komfort Sedan 4-Door

Engines covered

  • 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
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 #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 #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 #11033469

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

TSB #11033457

This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: The ODIS Audi Brand update 2.41.1 is setting a ODS5003E

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

Showing the 8 most recent of 627 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.

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