2018 Audi A8 Quattro Service and Repair Manual
This 2018 Audi A8 Quattro factory service and repair manual is built around this specific year, engine and trim combination, giving you the specifications and torque sequences Audi actually released for your car instead of generic figures pulled from another model year.
Engines covered
- 3.0L V6 (183 cu in) — DOHC, supercharged, gasoline
- 4.0L V8 (243 cu in) — DOHC, turbocharged, gasoline
- 6.3L W12 (384 cu in) — DOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
- L
- L Premium
- L Sport
- L W12
- Premium
Known issues on the 2018 A8 Quattro. Two recalls are on federal record for this model year. The first covers the seal around the engine compartment, which can come loose and contact hot engine components, increasing the risk of a fire. The second covers the left and right fuel rails, which may leak fuel and, in the presence of an ignition source, increase the risk of a fire. No complaints or technical service bulletins are logged for the year. The factory diagnostic and repair procedures behind each of those systems are here.
From an engine bay seal inspection to a fuel rail check or a routine service interval, it keeps you on the OEM procedure and the correct specification for your specific 2018 A8 Quattro.
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. (Audi) is recalling certain 2016-2018 Q7, A6 and A7 vehicles, and 2015-2018 Audi A8 vehicles. The left and right fuel rails may leak fuel.
A fuel leak in the presence of an ignition source can increase risk of a fire.
Audi has notified owners, and dealers will replace the left and right fuel rail, free of charge. The recall began February 28, 2019. Owners may contact Audi customer service at 1-800-253-2834. Audi
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 DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This bulletin provides information when DTC B105A1A, B103E25 is stored in 0017; fuel tank level implausible.
This service information TSB provides warranty coverage information for vehicles with a broken sunroof panel.
This bulletin provides informatoinw hent here are scratches or a coating on the cover of the instrument cluster, or particles inside of the housing.
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 is increased oil consumption; >0.5ltr/1000 km.
Showing the 8 most recent of 598 technical service bulletins on file with NHTSA.
