2021 Audi Q3 Service and Repair Manual

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Factory-Grade Data

2021 Audi Q3 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

  • S Line Sport Utility 4-Door
  • Premium Sport Utility 4-Door
  • Sportback S Line Sport Utility 4-Door
  • S-Line Premium Plus Sport Utility 4-Door
  • Technik Sport Utility 4-Door
  • S-Line Premium Sport Utility 4-Door
  • Premium Plus Sport Utility 4-Door
  • Select Sport Utility 4-Door
  • Sportback Select Sport Utility 4-Door
  • Dynamic Sport Utility 4-Door
  • Progressiv Sport Utility 4-Door
  • Komfort Sport Utility 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

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Vehicle Safety Data

2021 Audi Q3 Recalls & Complaints

NHTSA #22V67300008/09/2022Component: FUEL SYSTEM, GASOLINE:STORAGE

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021-2022 Audi Q3 vehicles. The vent pipe within the fuel tank may have been damaged during fuel tank assembly.

Consequence

A damaged vent pipe may allow fuel to spill out of the filler neck when the fuel cap is opened, incr

Remedy

Dealers will inspect the internal vent pipe for damage and replace the charcoal canister and the fue

NHTSA #21V60600005/08/2021Component: SEAT BELTS:REAR/OTHER:RETRACTOR

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro,

Consequence

An unsecured child restraint system can increase the risk of injury during a crash.

Remedy

Dealers will inspect, and replace as necessary, the middle-rear seat belt assemblies, free of charge

TSB #11032203

This bulletin provides information to address whistling noises during calls, which change with engine speed.

TSB #11032194

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

TSB #11032181

This bulletin provides informatio when fuel pump/ sender, fuel tank level implausible, DTC B105A1A B103E29 Stored in 0017.

TSB #11032165

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

TSB #11032157

This bulletin provides information when the sliding glass panoramic sunroof is leaking.

TSB #11032137

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

TSB #11032136

This TSB provides information when the customer reports that the USB socket is missing, pushed in, or loose.

TSB #11032135

This bulletin provides informaiotn when voice control isn't working; telephone/SDS.

Showing the 8 most recent of 811 technical service bulletins on file with NHTSA.

20230725Component: SEAT BELTSCrash reported2 injured

I was traveling approximately 50 mph on a highway when we were rear-ended. The car spun around and we were both thrown forward due to the malfunctioning of both the driver and passenger seat belts. Fu

20230725Component: SEATSCrash reported2 injured

I was traveling approximately 50 mph on a highway when we were rear-ended. The car spun around and we were both thrown forward due to the malfunctioning of both the driver and passenger seat belts. Fu

20210809Component: LANE DEPARTURE: ASSISTCrash reported

I was driving down a one lane road in my car that is less than a month old, when all of a sudden my car aggressively veered to the right over the shoulder line, then it veered to the left over the yel

20250530Component: FUEL/PROPULSION SYSTEM

I am reporting a recurring fuel system defect affecting my Audi Q3, consistent with Safety Recall 20YF – Suction Jet Pump. The problem began as difficulty refueling and now mirrors an identical issu

20250529Component: UNKNOWN OR OTHER

By the dome light, it leaks water when it is pouring rain very heavily. It also drips water by the passenger side shade visor. The dome lights will dim and get brighter consistently as it is dripping.

Showing the 5 most serious of 21 complaints filed with NHTSA.

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