2011 Audi A4 Service and Repair Manual

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Covers all 2011 A4 trims — Trendy Sedan 4-Door, Trendy Plus Sedan 4-Door, Base Sedan 4-Door +2 more ·
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2011 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

  • Trendy Sedan 4-Door
  • Trendy Plus Sedan 4-Door
  • Base Sedan 4-Door
  • Sport Sedan 4-Door
  • Luxury Sedan 4-Door

Engines covered

  • 1.8L 1798CC 110Cu. 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
No active recalls The 2011 Audi A4 has no recalls on file with NHTSA.
TSB #10253261

This bulletin provides information when the remote control key is inoperative.

TSB #10251657

This bulletin provides information on visual concerns with the headlight lens.

TSB #10250322

This bulletin provides information pertaining to MMI Navigation database concerns.

TSB #10250232

This bulletin provides information for when there are noises from the headliner/sunroof area.

TSB #10250555

This bulletin contains repair information for when there is a creaking/squeaking from the steering column when steering slowly.

TSB #10250554

This bulletin provides information for when the steering column adjustment does not work.

TSB #10248208

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

TSB #10247205

This bulletin provides information for when the ABS/ESC speed sensor has an implausible signal.

Showing the 8 most recent of 888 technical service bulletins on file with NHTSA.

20240714Component: ENGINE

Engine oil consumption, timing chain. This is a massive problem among Audi vehicles across the board. Engine oil consumption is abnormal and if unnoticed leads to engine dying in the middle of the ro

20240424Component: ENGINE

So there have already been recalls on some audis for oil consumption. I have a 2011 Audi A4 quattro and it goes through oil like crazy. It's ridiculous I believe it's because of faulty piston rings wh

20231019Component: SEAT BELTS

As of yesterday 10/18/2023, the drivers seat belt would not connect, I forced it to connect, but the dash light indicator remains on. also, difficult to release. I'm concerned that in an accident the

20230622Component: ELECTRICAL SYSTEM

Vehicle has horrible oil consumption due to piston rings being defective upon manufacture. Vehicle will have slew of problems, including stopping in the middle of the street, risking the lives of ever

20230622Component: ENGINE

Vehicle has horrible oil consumption due to piston rings being defective upon manufacture. Vehicle will have slew of problems, including stopping in the middle of the street, risking the lives of ever

Showing the 5 most serious of 17 complaints filed with NHTSA.

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