This 2014 Audi S8 factory service and repair manual is built around the 4.0L V8 (engine code CGTA) and Base Sedan 4-Door trim on your build sheet, so the torque values, fluid capacities, and diagnostic trees inside match what Audi published for this specific configuration rather than a generic A8-platform approximation.
Engines covered
- 4.0L V8 (243 cu in) — DOHC, turbocharged, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
Known issues on the 2014 S8. Five recalls are on federal record for this model year. Two cover the high-pressure fuel pump supply line, which can turn porous over time and leak fuel near an ignition source, raising fire risk. A third covers a hood-area seal that can come loose and contact hot engine components, also a fire concern. A fourth covers the standard sunroof glass panel, which on certain production-date vehicles may shatter, risking injury from falling glass or driver distraction. A fifth covers the turbocharger oil supply strainer, which can become blocked and starve the turbo bearings, leading to wear, an engine stall, and increased crash risk. Owners have filed 6 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind each of those systems are here.
From tracing a fuel-line leak to inspecting the turbocharger oil supply or servicing the sunroof mechanism, it keeps you on the OEM procedure and the correct specification for your specific 2014 S8.
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
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
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 servi
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 sunroo
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. Volkwage
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. A
This bulletin provides a statement regarding the bottleneck of supply for VW approved oil types VW 504.00 and VW 507.00.
This bulletin provides information when there is a film/visible rings on the clear glass cover of the headlight when the dipped beam is switched on.
This bulletin provides informaiton when the engine is not running smoothly, misfiring.
This bulletin provides information when there are noises from the area around the instrument cluster.
This Reporting Obligation requires technicains to contact the Technical Assistance Center (TAC) in cases where the airbag/seatbelt is deployed/not deployed; general accident information; and fire and overheat damage.
This bulleitn procides informaiton when tehre is a transmission warning mssage in the instrument cluster; P074100 is stored in the TCM.
This bulletin provides informationwhen noises/vibration are detected from front of vehicle in dynamic mode.
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
Showing the 8 most recent of 642 technical service bulletins on file with NHTSA.
The contact owns a 2014 AUDI S8. The contact stated while driving 60MPH the vehicle began to vibrate violently from the engine compartment; the cabin filled up with smoke and the vehicle tailpipe beg
FAULTY "OIL SCREEN" DESIGN HAS CAUSED TURBOS TO FAIL AND OTHER RELATED COMPONENTS. AUDI HAS KNOWN ABOUT THE ISSUE BECAUSE THERE WAS AN UPDATED SCREEN MADE TO REPLACE THE OLD DESIGN IN NEW CARS.
TURBOCHARGERS CAN FAILURE WITH NO WARNING WHILE DRIVING WHICH IS A SEVERE SAFETY HAZARD
I ALREADY FILED COMPLAINT 11218674. THIS IS ADDING DETAIL. AUDI HAS ISSUED TSB 2044640/5 (HTTPS://STATIC.NHTSA.GOV/ODI/TSBS/2018/MC-10153123-9999.PDF) TO ADDRESS THE DAMAGE WHEN THIS VERY KNOWN IS
The contact owns a 2014 Audi S8. The contact stated while driving 65 MPH, the low oil warning light illuminated on the instrument panel. Upon visual inspection of the engine compartment, the contact o
During our recent rains i discovered water dripping on me from the center overhead console at the top of the windshield. This totally distracted me while driving as I was shocked by it's sudden occurr
