2014 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
- Premium Sedan 4-Door
- L TDI Sedan 4-Door
- Base Sedan 4-Door
- L Sedan 4-Door
- L Premium Sedan 4-Door
- Elite Sedan 4-Door
- L W12 Sedan 4-Door
Engines covered
- 3.0L 2995CC 183Cu. In. V6 GAS DOHC Supercharged
- 3.0L 2967CC 181Cu. In. V6 DIESEL DOHC Turbocharged
- 3.0L 2995CC V6 GAS DOHC Supercharged
- 4.0L 3993CC 243Cu. In. V8 GAS DOHC Turbocharged
- 6.3L 6299CC 384Cu. 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
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2015 Audi S8 and A8 vehicles. The fuel supply line for the high pressure fuel pump may become porous over time, resulting in a fuel leak.
A fuel leak in the presence of an ignition source can increase the risk of a fire.
Audi will notify owners, and dealers will replace the fuel line, free of charge. The recall began July 20, 2018. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20AV.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2016 Audi A8 and S8 vehicles. The fuel supply line for the high pressure fuel pump may become porous and leak fuel.
Leaking fuel, in the presence of an ignition source, increases the risk of fire.
Audi has notified owners, and dealers will install a fuel pressure damper, free of charge. The recall began February 21, 2019. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 20BM.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2013-2014 Audi A8 and S8 vehicles equipped with a standard sunroof, manufactured March 12, 2013, through July 15, 2013. These vehicles are equipped with a standard sunroof glass panel that may shatter.
Should the sunroof's glass break while the vehicle is in use, the falling glass could injure the driver or passengers. It could also distract the driver, increasing the risk of a crash.
Volkswagen will notify owners, and dealers will replace the sunroof glass panel, free of charge. The recall began on October 21, 2013. Owners may contact Audi of America at 1-800-822-2834. Volkwagen's number for this campaign is 60B6/1L.
Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2013-2018 Audi S8 and A8 vehicles. The seal around the engine compartment may come loose and contact hot engine components.
If the seal contacts hot engine components, there could be an increased risk of a fire.
Audi will notify owners, and dealers will install a retaining plate to prevent the engine compartment seal from loosening. The recall began September 4, 2020. Owners may contact Audi customer service at 1-800-253-2834. Volkswagen's number for this recall is 51G6.
Volkswagen Group of America, Inc. (Audi) is recalling certain 2013-2017 A8, S6 Sedan, S7, S8, and 2014-2017 RS7 vehicles. The turbocharger oil supply strainer can become blocked, causing wear to the bearings due to lack of lubrication.
Worn bearings can cause the turbine wheel to contact the turbocharger housing or cause the shaft to break, causing an engine stall and increasing the risk of a crash.
Dealers will replace the oil strainer and perform an oil change, free of charge. Owner notification letters were mailed August 4, 2022. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 21H7.
The high-voltage batteries in electric vehicles are subject to various ageing effects which could lead to the energy content (energy density) being reduced. This reduction in the energy content, which is due to factors. Revised header. Adde
This is a notice for software changes with the ODIS diagnostic program to correct the communication during vehicle programming function: A software fix is needed to correct the issue: The ODIS Audi Brand update 2.41.1 is setting a ODS5003E
This bulletin provides information about professional noise analysis with the VAS 611 015 PICO-NVH tool
This bulletin provides diagnostic information for the vehicle locking system.
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.
This bulletin provides informaiton regarding the Universal Traffic Recorder.
This bulletin provides informaiotn about various infortainment system complaints.
This bulletin provides information when the parking assistance gives false warnings.
Showing the 8 most recent of 945 technical service bulletins on file with NHTSA.
Car went dead on the hwy without any warning. Dealer has the vehicle for a month now and says there is metal shavings in fuel and need more than 15000/- in repairs to replace fuel pump, 6 fuel injectors fuel line and fuel rail. Metal shavings come from fuel pump Failure there should be micro filters in line to stop them from entering the fuel line and injector with sudden death.
The dealer has been unable to provide repairs for the broken front camera for over three months, which has rendered many of the car's safety features inoperable.
I was driving along on the highway, at normal speeds. When my engine started surging, causing me to speed up and slow down rapidly. Putting the safety of others behind and in front of me in danger. No check engine or any light of that nature turned on. then after another mile or so my engine sputtered then just died. I had to pull to the left side of the road since there way a semi truck to my right and it was rush hour here on [XXX] in Denver, CO. I don't know what the issue was but I was worried if the people behind me could easily get out from behind me as I almost caused a rear end collisi
The oil strainer needs to be replaced in my car. This is a known issue with Audi and there are many recalls on Audis, with the exception of mine. I read that this can lead to the engine stopping and causing an accident and it can ruin the engine. This has been problem has been reported to me by an independent service center.
Turbos failed. Was traveling home on a highway, when i pulled off the engine suddenly stalls out and loss of steering occurs as the engine system automatically puts you in park. Switching to neutral leads to a very 'leaden'/heavy driving feeling (Kind of like with no Power steering, but a little better). Able to get it restarted again with some effort. Car will stall out at any point in time when RPM is 1200 or less (you have about .25s to get it back out of that range or it stalls again). Power is sluggish. To avoid stalls, shifts must be rapid and neutral-shift+gas needs to be applied to pr
My Audi Certified Preowned A8L, 4.0 TFSI suffered a complete turbocharger failure without any notice. The car went into service 9/30/2013. I purchased the car from the same dealer that originally sold the car in Stratham, New Hampshire on 12/26/2016. I purchased an extended warranty from the dealership for 8 years, 100,000 miles. Thus, the extended warranty expired on 9/30/2021. Car has always been serviced by this Audi Stratham Dealership. During a routine trip, car stalled, went into neutral upon entering a stoplight/intersection and would not re-start. Had to be towed. No modificati
The rear view mirror on my car fell off of the windshield without warning.As a result,I nearly backed into a lady and her granddaughter in a senior living facility and a woman pushing a shopping cart at the supermarket.My adaptive cruise control isn't working nor is the sunroof.Th rain sensor and headlights have also been compromised.The manufacturer hasn't inspected it.My insurance company has looked at it, but won't cover it.The rear view mirror has the eyes behind me for the last 28 years.It's second nature to me,so to take my eyes off of the road to check my side/blind spots,an actual bli
For technician report, go to: https://getpe.co/4ZT0j2 While driving on a major central NJ highway, slowing to exit, the vehicle shuddered and stalled in lane. The engine EPC light came on and a message to put the car in park to start the engine followed. This made it impossible to move the car off the road. It was necessary to stand behind the vehicle and wave traffic around. A passerby was able to get the car started and moved it off the exit and to a service road shoulder. The car shuddered and died again. Traffic was heavy and the situation was quite dangerous. The car was taken to the deal
Showing the 8 most serious of 18 complaints filed with NHTSA.
