2015 Audi A4 Service and Repair Manual

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Factory-Grade Data

2015 Audi A4 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

  • Prestige Sedan 4-Door
  • Trendy Sedan 4-Door
  • Premium Sedan 4-Door
  • Premium Plus Sedan 4-Door
  • Sport Sedan 4-Door
  • Komfort Sedan 4-Door

Engines covered

  • 2.0L 1984CC 121Cu. In. l4 GAS DOHC Turbocharged
  • 1.8L 1798CC 110Cu. 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

2015 Audi A4 Recalls & Complaints

No active recalls The 2015 Audi A4 has no recalls on file with NHTSA.
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 #11031051

This bulletin provides informaiotn about various infortainment system complaints.

TSB #11030987

This bulletin provides information about where to download the Audi frequency app.

TSB #11030985

This bulletin provides information when the parking assistance gives false warnings.

TSB #11030984

This bulletin provides information when the parking assistance gives false warnings.

Showing the 8 most recent of 476 technical service bulletins on file with NHTSA.

20201116Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2015 AUDI A4. THE CONTACT STATED THAT WHILE DRIVING AT 30 MPH, SHE ATTEMPTED TO AVOID HITTING ANOTHER VEHICLE THAT HAD DARTED IN FRONT OF HER VEHICLE. DESPITE HER BEST EFFORTS,

20210709Component: ELECTRICAL SYSTEM1 injured

The battery failed/malfunctioned and was leaking hydrogen sulfide gas into my car slowly for a long period of time. A month or two after I initially financed this used Audi A4 at Volkswagon in Dothan,

20251204Component: ENGINE AND ENGINE COOLING

The contact owns a 2015 Audi A4. The contact stated that when the vehicle was started, the coolant warning light illuminated. The vehicle was turned off and restarted after 20 minutes, and the coolant

20250218Component: ENGINE

The vehicle has an oil consumption issue whereby I top off the oil in about every 400 miles. The dealership indicated that this is a known problem with Audi. The issue first started with warnings that

20250218Component: ENGINE

Spark plug for damaged due to oil seeping into it. This could lead to overheating of engine or cylinders getting damaged potentially leading to vehicle malfunction when I drive. Audi inspected the pa

Showing the 5 most serious of 23 complaints filed with NHTSA.

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