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Audi · Known Issues

2025 Audi A4 Problems: 3 Known Issues

2025 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated September 2026

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Issue summary

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Audi A4 has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. Across all issues with published estimates, repair costs range from $150 to $2,000. DIY maintenance guides at au7o.io.

In This Article

  • A4 Electrical1
  • A4 Body/Panels1
  • A4 Brakes1
  • Recalls3
  • FAQ
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In This Article

  • Electrical1
  • Body/Panels1
  • Brakes1
  • Recalls3
  • FAQ

All 3 Known Issues

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ALL YEARS202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999199819971996

On the 2022-2025 Audi A4, multiple late-model Audi/VW MQB-derivative vehicles, including B9.5 A4s, have owner reports of repeated low-voltage warnings, dead batteries after sitting, and intermittent no-start conditions. The pattern is commonly linked to control modules not entering sleep mode properly, telematics/connectivity functions waking the network, or a weak AGM battery that tests marginal but repeatedly discharges. Owners typically report the car needing jump-starts after short parking periods and warning messages about electrical system malfunction or battery charge.

This issue also affects: Audi Q4 e-tron, Porsche Taycan, Volkswagen ID.4

Common Symptoms

  • Battery low warning
  • Vehicle will not start after sitting
  • Repeated need for jump-starts
  • Electrical system malfunction message
  • Intermittent warning lights after low voltage

How to Fix

Diagnosis should begin with battery state-of-health testing, charging-system verification, and parasitic draw measurement after the vehicle is allowed to sleep. Dealers often update software for gateway/telematics modules, check for excessive quiescent current, and replace the 12V AGM battery if it fails load testing; battery registration/coding is required after replacement. If draw remains high, scan all modules for wake-up faults and inspect accessories such as dashcams or OBD devices.

Typical repair cost:$300 - $1,200

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Community Reported
Medium Confidence

On the 2022-2025 Audi A4, panoramic/sunroof-equipped A4s continue to generate owner complaints about water entering the cabin, usually from clogged drains, disconnected drain tubes, or seal alignment issues. Owners often first notice damp headliners, wet front or rear carpets, musty odors, or intermittent electrical warnings after heavy rain or car washes. If water reaches under-carpet wiring or modules, repair costs can rise quickly beyond a simple drain cleaning.

This issue also affects: Audi A3, Audi A8, Volkswagen CC

Common Symptoms

  • Wet carpets
  • Musty smell in cabin
  • Water dripping from headliner or A-pillar area
  • Fogging windows
  • Intermittent electrical warnings after rain

How to Fix

Inspect all sunroof drains for blockage and verify that each drain tube is properly attached and flowing. Check the sunroof frame, cassette seals, and door vapor barriers if the leak source is unclear; then dry the interior thoroughly and inspect under-carpet connectors/modules for corrosion. Early intervention is important because mold and wiring damage can turn a minor leak into a major interior electrical repair.

Typical repair cost:$150 - $2,000

Research This Issue

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Community Reported
Medium Confidence

On the 2022-2025 Audi A4, audi’s through-model-year-2025 brake bulletins distinguish squeal from pulsation. TSB 2051095/8 states that brake squeal alone does not indicate a defect and uses noise frequency and VIN-specific repair information. TSB 2022584/12 covers steering-wheel vibration or brake-pedal pulsation during braking and lists multiple possible causes rather than one rotor/pad defect. Neither bulletin supplies a DTC.

Common Symptoms

  • Brake squeal
  • Steering-wheel vibration while braking
  • Brake-pedal pulsation while braking

How to Fix

Confirm whether the complaint is sound, steering-wheel vibration, pedal pulsation or an actual braking-performance concern. Check the VIN for the applicable current bulletin, reproduce and document the frequency/speed/temperature conditions, measure the brake system and diagnose tire, hub, rotor, pad and installation causes as directed. Replace only confirmed components; do not buy pads and rotors from this record.

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Manually Verified
High ConfidenceVerifiedReviewed Jul 2026
NHTSA Recalls3 recalls

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

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

Volkswagen Group of America, Inc. (Audi) is recalling certain 2022 Audi A6 Sedan, A4 Sedan, Q5, and Q5 Sportback vehicles. The semiconductor inside the engine control unit may short-circuit and cause an engine stall.

Campaign #22V36800023/05/2022

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."

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Frequently Asked Questions

What are the most common Audi A4 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2025 Audi A4 has 3 documented issues. The most frequently reported are: 12V Battery Drain and No-Start from Faulty Gateway/Telematics Sleep Behavior, Sunroof Drain/Seal Water Intrusion Causing Wet Carpets and Interior Electronics Concerns, 2022-2025 A4 Brake Squeal or Pulsation Diagnosis - TSBs 2051095/8 and 2022584/12. None are rated critical, but regular maintenance is recommended.

Is the Audi A4 reliable?

The 2025 Audi A4 has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Audi A4 problems?

Repair costs for known Audi A4 issues range from $150 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.

What is the 2022-2025 Audi A4 12V Battery Drain and No-Start from Faulty Gateway/Telematics Sleep Behavior?

Multiple late-model Audi/VW MQB-derivative vehicles, including B9.5 A4s, have owner reports of repeated low-voltage warnings, dead batteries after sitting, and intermittent no-start conditions. The pattern is commonly linked to control modules not entering sleep mode properly, te… Repairs typically run $300-$1,200. Severity: medium.

What is the 2022-2025 Audi A4 Sunroof Drain/Seal Water Intrusion Causing Wet Carpets and Interior Electronics Concerns?

Panoramic/sunroof-equipped A4s continue to generate owner complaints about water entering the cabin, usually from clogged drains, disconnected drain tubes, or seal alignment issues. Owners often first notice damp headliners, wet front or rear carpets, musty odors, or intermittent… Repairs typically run $150-$2,000. 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.

Data compiled from NHTSA recalls, manufacturer TSBs, automotive forums, and AI-assisted research. No aggregated owner-report counts available for this vehicle yet.

Campaign #22V80600026/10/2022

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

What is the 2022-2025 Audi A4 2022-2025 A4 Brake Squeal or Pulsation Diagnosis - TSBs 2051095/8 and 2022584/12?

Audi’s through-model-year-2025 brake bulletins distinguish squeal from pulsation. TSB 2051095/8 states that brake squeal alone does not indicate a defect and uses noise frequency and VIN-specific repair information. TSB 2022584/12 covers steering-wheel vibration or brake-pedal pu… Severity: medium.