2021 Audi A5 Service and Repair Manual

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Factory-Grade Data

2021 Audi A5 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 Coupe 2-Door
  • Select Coupe 2-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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  • Visa

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Vehicle Safety Data

2021 Audi A5 Recalls & Complaints

NHTSA #21V29500026/04/2021Component: SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sed

Consequence

A broken lock nut may misalign the rear axle, causing a loss of control and increasing the risk of a

Remedy

Dealers will replace the lock nuts and, if necessary, the associated bolts, free of charge. Owner n

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

NHTSA #22V74200005/10/2022Component: BACK OVER PREVENTION:DISPLAY FUNCTION

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Cou

Consequence

A blank rearview camera display can reduce the driver's rear visibility, increasing the risk of a cr

Remedy

Dealers will update the infotainment unit software, free of charge. Owner notification letters were

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 #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 1022 technical service bulletins on file with NHTSA.

20260119Component: POWER TRAIN

What component or system failed or malfunctioned, and is it available for inspection upon request? TRANSMISSION - GEAR SHIFT How was your safety or the safety of others put at risk? THE CAR STOPPED SH

20251228Component: AIR BAGS

The passenger side air bag indicator constantly turns off and on in my Audi no matter if there is or is not a passenger in the seat. I took my vehicle to an authorized Audi service center to have the

20251228Component: SEATS

The passenger side air bag indicator constantly turns off and on in my Audi no matter if there is or is not a passenger in the seat. I took my vehicle to an authorized Audi service center to have the

20251119Component: UNKNOWN OR OTHER

I was driving down the interstate when my Warning Transmission Failure light came on. Then another message said you can drive with limited use if vehicle. Seconds later the Warning Transmission Failur

20250617Component: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

The contact owns a 2021 Audi A5. The contact stated while the driving 35 MPH, the instrument panel was blinking on and off several times and then went dark. A local dealer was contacted. The vehicle w

Showing the 5 most serious of 8 complaints filed with NHTSA.

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