2009 Audi A8 Quattro Service and Repair Manual

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Covers all 2009 A8 Quattro trims — Base Sedan 4-Door, L Sedan 4-Door, Plus Sedan 4-Door ·
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2009 Audi A8 Quattro 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

  • Base Sedan 4-Door
  • L Sedan 4-Door
  • Plus Sedan 4-Door

Engines covered

  • 4.2L 4163CC V8 GAS DOHC Naturally Aspirated
  • 4.2L 4172CC V8 GAS DOHC Naturally Aspirated
  • 6.0L 5998CC 366Cu. In. W12 GAS DOHC Naturally Aspirated

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
NHTSA #16V41500009/06/2016Component: VISIBILITY:SUN/MOON ROOF ASSEMBLY

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2007-2009 Audi A8 and S8 vehicles. The sunroof glass on the affected vehicles may not be properly secured to the sunroof frame. As a result, the sunroof glass may detach from the car while driving.

Consequence

If the glass detaches from the sunroof frame it could be come a road hazard, increasing the risk of a crash.

Remedy

Volkswagen will notify owners, and dealers will install additional adhesive between the sunroof glass and frame, free of charge. The recall is expected to begin in August 4, 2016. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 60C3.

TSB #11032137

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

TSB #11022664

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

TSB #11021447

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

TSB #11016532

This bulletin provides informatin when the engine does not run smoothly at idling speeds.

TSB #11012483

This bulletin provides information in circumstances where there are noises/vibration from front of vehicle in dynamic mode.

TSB #11012476

This bulletin provides information when the MIL is on; DTCs for misfire, air/fuel ratio imbalance, or lean fuel system stored in the ECM P030000.

TSB #11011285

This TSB Provides information when parking assistance provides false warnings.

TSB #11011282

This bulletin provides information when speaker rattles, vibrations, or audio interference is noted.

Showing the 8 most recent of 386 technical service bulletins on file with NHTSA.

12/11/20Component: ELECTRONIC STABILITY CONTROL (ESC)Crash reported

CAR HANDLING SYSTEM WENT OUT OF DIRECTIONAL CONTROL AND STEERING CONTROL CAUSING VEHICLE TO BE SENT INTO ONCOMING TRAFFIC AND THEN OFF THE ROAD. *TR

04/25/20Component: VISIBILITY

The contact owns a 2009 Audi A8. The contact stated that while driving at an undisclosed speed, the sunroof glass detached from the vehicle. The vehicle was taken to the dealer, where it was diagnosed that the sunroof glass frame had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 133,878.

06/05/20Component: ELECTRICAL SYSTEM,LATCHES/LOCKS/LINKAGES

1: My passenger door sensitive door closing sensor is not working 2: my sunroof is off track and makes noises 3: battery cord is corroded. There is no where in the world to get 1 right now apparently. I bought a brand new battery and car still doesn’t pull energy from the battery so I’m scared the car won’t start very soon

04/10/20Component: EXTERIOR LIGHTING

MULTIPLE COMPONENT FAILURES RELATIVE TO TAIL LIGHT ASSEMBLIES. BOTH TRUNK MOUNTED TAIL LIGHT ASSEMBLIES WERE REPLACE IN 12/11 UNDER MANUFACTURERS WARRANTY. SEALED TAIL LIGHT ASSEMBLIES WERE NOT WATER TIGHT WHICH CAUSED FAILURE OF CIRCUIT BOARDS AND LED LIGHTS. ONE OF THE TWO REPLACEMENT UNITS HAS ALSO FAILED AGAIN (18 MO. IN SERVICE AND 6000 MILES) LIGHTS HAVE FAILED IN THIS UNIT AS WELL, CAUSING POTENTIAL HAZARD DUE TO LACK OF ILLUMINATION EXPERIENCED IDENTICAL FAILURE ON MY 2007 AUDI S8 WHICH IS THE SAME CHASSIS PLATFORM AS THE VEHICLE ABOVE. A TOTAL OF FOUR OF THESE TAIL LIGHTS HA

08/19/20Component: ENGINE AND ENGINE COOLING

TL*THE CONTACT OWNS A 2009 AUDI A8. WHEN HE TURNED THE VEHICLE ON THE ENGINE BEGAN VIBRATING AND WHENEVER THE CONTACT BEGAN TO SLOW DOWN THE VEHICLE THE TRANSMISSION SHIFTED TO A LOWER GEAR AND THEN SURGED FORWARD. THE VEHICLE WAS TAKEN TO THE DEALER ON 4 OCCASIONS AND EACH TIME THEY WERE UNABLE TO DIAGNOSE THE FAILURE. THE FAILURE HAS OCCURRED SINCE THE VEHICLE WAS PURCHASED. THE CURRENT AND FAILURE MILEAGES WERE 9033.

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