2015 Audi S8 Problems: 8 Known Issues
2015 model year · 580+ owner reports · Updated October 2026
According to Au7o's analysis of 580+ owner reports, the 2015 Audi S8 has 8 documented known issues, with 4 rated critical. The most serious are Adaptive Air Suspension Multi-Point Failure ($1,200-$4,500 repair), ZF 8-Speed Torque Converter and Valve Body Issues ($2,500-$6,000 repair), 2013-2016 S8 Porous Fuel-Pump Supply Line / Fire Risk - Recall 19V057 and 2013-2017 S8 Blocked Turbocharger Oil Strainer / Stall Risk - Recall 22V178. The most commonly reported issue is Adaptive Air Suspension Multi-Point Failure with 292 owner reports. Across all issues with published estimates, repair costs range from $200 to $6,000. DIY maintenance guides at au7o.io.
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All 8 Known Issues
NHTSA Recalls10 recalls
EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT
Volkswagen Group of America, Inc. (Audi) is recalling certain 2021-2022 AUDI A8, A6 Allroad, E-TRON Quattro, 2022 S3, RSQ8, RS7, RS6 Avant, Q8, Q7, Q3, E-TRON Sportback Quattro, S5 Cabriolet, E-TRON GT, S5 Sportback, A7, A6, A5 Sportback, A5 Cabriolet, A4, A4 Allroad, A3, S8, SQ7, SQ8, S6, and S4 vehicles. The infotainment main unit may become damaged internally when the vehicle is shut off, resulting in an inoperative rearview camera display the next time the vehicle is started. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
AIR BAGS:FRONTAL
Volkswagen Group of America, Inc. (Audi) is recalling certain 2022-2023 S8 and A8 vehicles. During air bag assembly, the front-passenger occupant protection flap of the air bag may not have been folded correctly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2026 vehicles. Please see the recall report for a complete list of models. A software error may prevent the rearview camera image from displaying as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
TIRES
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A5 Sportback, RS5 Coupe, RS5 Sportback, S5 Sportback, 2020-2021 A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A6 Allroad, A6 Sedan, A7, A8, Q5, S4 Sedan, S5 Coupe, S5 Cabriolet, S6 Sedan, S7, S8, SQ5, 2021 Q5 Sportback, Q7, Q8, RS6 Avant, RS7, RSQ8, SQ5 Sportback, SQ7, and SQ8 vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-295 (42L1) were performed.
ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)
Volkswagen Group of America, Inc. (Audi) is recalling certain 2019-2021 Audi A8 and 2020-2021 Audi S8 vehicles. A missing sealing pin may allow moisture to enter the engine control module connector, possibly causing a control module malfunction.
+ 5 more recalls. Check all on NHTSA.gov
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Frequently Asked Questions
What are the most common Audi S8 problems?
According to Au7o's analysis of 580+ owner reports, the 2015 Audi S8 has 8 documented issues. The most frequently reported are: Adaptive Air Suspension Multi-Point Failure, ZF 8-Speed Torque Converter and Valve Body Issues, 2013-2016 S8 Porous Fuel-Pump Supply Line / Fire Risk - Recall 19V057. Of these, 4 are rated critical and should be addressed promptly.
Is the Audi S8 reliable?
The 2015 Audi S8 has 8 known issues documented across 580+ owner reports. 4 issues are rated critical: Adaptive Air Suspension Multi-Point Failure and ZF 8-Speed Torque Converter and Valve Body Issues and 2013-2016 S8 Porous Fuel-Pump Supply Line / Fire Risk - Recall 19V057 and 2013-2017 S8 Blocked Turbocharger Oil Strainer / Stall Risk - Recall 22V178. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
How much does it cost to fix common Audi S8 problems?
Repair costs for known Audi S8 issues range from $200 to $6,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Adaptive Air Suspension Multi-Point Failure, typically costs $1,200-$4,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
What is the 2013-2024 Audi S8 Adaptive Air Suspension Multi-Point Failure?
The S8 full-size luxury sedan places extreme demands on the air suspension system. All four struts and the compressor commonly need replacement between 60,000-100,000 miles. The heavy curb weight accelerates bladder wear. Repairs typically run $1,200-$4,500. Severity: high.
What is the 2013-2024 Audi S8 ZF 8-Speed Torque Converter and Valve Body Issues?
The S8 high-torque application stresses the ZF 8HP torque converter and valve body. Shudder, delayed shifts, and harsh engagement develop as the converter clutch wears and valve body solenoids degrade. Repairs typically run $2,500-$6,000. Severity: high.
What is the 2013-2016 Audi S8 2013-2016 S8 Porous Fuel-Pump Supply Line / Fire Risk - Recall 19V057?
NHTSA recall 19V057 / Audi 20BM covers certain 2013-2016 S8 vehicles. The low-pressure supply line feeding the high-pressure fuel pump can become porous, causing fuel odor or leakage; fuel near an ignition source increases fire risk. The affected line is not itself a high-pressur… Severity: high.
What is the 2013-2017 Audi S8 2013-2017 S8 Blocked Turbocharger Oil Strainer / Stall Risk - Recall 22V178?
NHTSA recall 22V178 / Audi 21H7 covers certain 2013-2017 S8 vehicles. Carbon or deposits can block the turbocharger oil-supply strainer, reducing bearing lubrication. Bearing wear can allow the turbine wheel to contact the housing or the shaft to break, causing loss of power or e… Severity: high.
What is the 2013-2015 Audi S8 2013-2015 S8 COD Vibration with J931 Basic-Setting Fault - Diagnosis Required?
Audi TSB 2036392/6 covers 2013-2015 S8 4.0 TFSI vehicles with vibration around 1000 and 3000 rpm and possible B201000 or B200500 in the sub-frame mount controller J931. Work on electrical-system controllers J519/J520 can deactivate J931 active-mount basic settings. The bulletin d… Severity: medium.
What is the 2007-2018 Audi S8 Clogged Sunroof / Plenum Drains Causing Water Intrusion and Electronics Damage?
Like other large Audi sedans, the S8 relies on sunroof drain channels and cowl/plenum drains to route rainwater away from the cabin and the electronics housed in the plenum area. The plastic drain connectors and channels become brittle and crack, and the plenum drains clog with d… Repairs typically run $200-$3,500. Severity: medium.
What is the 2013-2018 Audi S8 2013-2018 S8 Warm-Soak Long-Crank or No-Start - Fuel Diagnosis Required?
Audi TSB 2046724/5 covers sporadic warm-engine no-start or long cranking after the vehicle sits without fully cooling. A rich-mixture DTC may occur, but often there is no DTC. Audi’s procedure distinguishes fuel in the oil from a short-trip profile, ECM software, high-pressure in… Severity: medium.
What is the 2013-2016 Audi S8 2013-2016 S8 Warm-Idle Whistle from Crankcase Breather Leak - Diagnosis Required?
Audi TSB 2040644/6 covers a metallic whistling or grinding sound at warm idle, a sporadic MIL and possible P2279 or P0507 on 4.0 TFSI vehicles. A leak in the crankcase breather pressure-regulating module can cause the condition. Audi’s labor table explicitly includes the S8. Severity: medium.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.