2020 Audi A4 allroad Service and Repair Manual

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Factory-Grade Data

2020 Audi A4 allroad 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 Plus Wagon 4-Door
  • Progressiv Wagon 4-Door
  • Premium Wagon 4-Door
  • Prestige Wagon 4-Door
  • Komfort Wagon 4-Door
  • Technik Wagon 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

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Vehicle Safety Data

2020 Audi A4 allroad Recalls & Complaints

NHTSA #22V03400026/01/2022Component: TIRES

Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A

Consequence

Rear axle misalignment may cause premature or uneven tire wear, increasing the risk of a crash.

Remedy

Dealers will inspect the rear axle, adjust the alignment as necessary, and replace any prematurely o

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 #11031048

This TSB provides information when there is moisture in footwell, damp smell in passenger compartment.

Showing the 8 most recent of 653 technical service bulletins on file with NHTSA.

20250923Component: ENGINE

The cars MMI system will loose connection while in Motion making the car systems none functioning /. This can happen while at highway speeds or while backing up .

20250923Component: FORWARD COLLISION AVOIDANCE: WARNINGS

The cars MMI system will loose connection while in Motion making the car systems none functioning /. This can happen while at highway speeds or while backing up .

20250923Component: LANE DEPARTURE: WARNING

The cars MMI system will loose connection while in Motion making the car systems none functioning /. This can happen while at highway speeds or while backing up .

20250810Component: ELECTRICAL SYSTEM

Shortly after my warranty expired last september ([XXX]) my 2020 Audi A4 Allroad started to experience random episodes of the car's main entertainment touch screen rebooting in the middle of the car b

20250810Component: VISIBILITY/WIPER

Shortly after my warranty expired last september ([XXX]) my 2020 Audi A4 Allroad started to experience random episodes of the car's main entertainment touch screen rebooting in the middle of the car b

Showing the 5 most serious of 50 complaints filed with NHTSA.

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