What are the most common Audi A8 problems?

According to Au7o's analysis of 600+ owner reports, the 2024-2024 Audi A8 has 1 documented issues. The most frequently reported are: Adaptive Cruise Control Radar Sensor Failure. None are rated critical, but regular maintenance is recommended.

Is the Audi A8 reliable?

The 2024-2024 Audi A8 has 1 known issues documented across 600+ owner reports. No issues are rated critical, suggesting generally good reliability. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Audi A8 problems?

Repair costs for known Audi A8 issues range from $200 to $2,000, depending on the specific problem and whether you choose DIY or professional repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

2024 Audi A8 Problems: 1 Issues Every Owner Should Know

2024 Audi A8 Problems: 1 Issues Every Owner Should Know | Au7o

Filter:

Community Reported

600 owners

On the 2011-2025 Audi A8, the A8 adaptive cruise control radar sensor, located behind the front grille, is prone to miscalibration and outright failure. Environmental contamination (road spray, ice, debris) can cause false alerts or system shutdown. The sensor requires precise alignment and even minor front-end impacts or bumper removal for service can knock it out of calibration.

This issue also affects: Audi A5, Audi A6 allroad, Audi A7

Common Symptoms

ACC not available message on dash
Adaptive cruise disengages unexpectedly
Pre-sense front warning with no obstacle
Front assist system fault message
Cruise control unavailable in rain or snow
Ghost braking events on highway
System requires recalibration after bumper work

How to Fix

Clean the radar sensor area behind the front grille emblem first. If the fault persists, dealer recalibration with ADAS calibration equipment is required ($200-$400). If the sensor module is faulty, replacement costs $1,000-$2,000 plus recalibration. Always recalibrate after any front bumper removal or windshield replacement.

What Owners Are Using

Parts and tips from 600+ owners who fixed this issue

TipThe radar sensor is behind the four-ring emblem on the front grille. Keep this area clean and free of ice/snow buildup. A quick wipe before highway trips in winter prevents most false fault messages.
TipAfter ANY front bumper removal (even for routine service), adaptive cruise MUST be recalibrated. Many shops forget this step, leading to ghost braking complaints. Insist on ADAS recalibration.
UpgradeAutomotive relay replacement set for common relay failures (Bosch Automotive Relay 5-Pin 12V)
View on Amazon
UpgradeDigital multimeter for diagnosing fuse, relay, and module electrical faults (Innova Digital Multimeter)
View on Amazon
UpgradeOEM-quality replacement sensor for accurate readings and proper system function (Bosch Replacement Sensor)
View on Amazon

Typical repair cost:$200 - $2,000

Research This Issue

600+ owners have reported this issue

Google Reddit YouTube NHTSA

Community Reported

Medium Confidence600 reportsLast reported by owners Jan 2024Reviewed Mar 2026

⚠️NHTSA Recalls12 recalls

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."

Campaign #25V90000019/12/2025

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."

Campaign #23V08400015/02/2023

AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION:FRONT PASSENGER

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2023 Audi S5 Cabriolet, A4 Allroad, Q5 Sportback, A3 Sedan, S5 Sportback, SQ7, TT Coupe, TT Roadster, RS5 Sportback, 2024 A8, E-Tron Quattro, E-Tron Sportback Quattro, Q8, RSQ8, 2023-2024 Q3, Q5, and Q7 vehicles. An electrical connection in the front passenger seat for the occupant detection system (ODS) control module may loosen and deactivate the front passenger air bag.

Campaign #24V25100003/04/2024

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."

Campaign #22V80600026/10/2022

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Audi A8 and S8, 2022 Audi A5 Sportback, A4 Sedan, E-Tron GT, Q3, Q5, RS6 Avant, A3 Sedan, S5 Sportback, Q5 Sportback, Q7, Q8, RSQ8, SQ7, SQ8, and S3 Sedan vehicles. A software error may prevent the rear-view image from initially displaying when the vehicle begins to reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Campaign #21V82500020/10/2021

+ 7 more recalls. Check all on NHTSA.gov

Enter your VIN at NHTSA.gov to check recalls specific to your vehicle.

2024 Audi A8 Problems: 1 Issues Every Owner Should Know

All 1 Known Issues

2011-2025 Audi A8: Adaptive Cruise Control Radar Sensor Failure#