2015 Audi A4 Problems: 5 Known Issues

2015 Audi A4 Problems: 5 Known Issues | Au7o

NHTSA Recalls5 recalls

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.

Campaign #22V03400026/01/2022

SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY

Volkswagen Group of America, Inc. (Audi) is recalling certain 2021 Q7, Q8, Q5 Sportback, SQ5 Sportback, RS6 Avant, RS7, RS Q8, 2020-2021 Audi S6 sedan, Q5, A8, S8, A7, A6 Allroad, A5 Cabriolet, A4 sedan, A4 Allroad, SQ5, S7, A6 sedan, S5 coupe, S4 sedan, S5 Cabriolet, A5 coupe, 2019-2021 RS5 coupe, A5 Sportback, S5 Sportback, RS5 Sportback vehicles. The lock nut on the trailing arm of the rear axle may break due to stress corrosion.

Campaign #21V29500026/04/2021

BACK OVER PREVENTION:DISPLAY FUNCTION

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Audi A8, RS7, RS6 Avant, RS5 Sportback, RS5 Coupe, Q8, Q7, Q5 Sportback, S4 Sedan, Q5, A7, A6, A6 Allroad, A5 Sportback, A5 Coupe, A5 Cabrioleet, A4 Sedan, A4 Allroad, E-Tron Sportback Quattro, SQ7, S5 Cabriolet, E-Tron Quattro, SQ8, SQ5 Sportback, SQ5, S8, S7, S6 Sedan, S5 Sportback, S5 Coupe, 2022 E-Tron GT, and 2021-2022 RSQ8 vehicles. Due to a software issue, a blank or black screen may be displayed instead of the rearview camera image when the vehicle is placed in reverse gear. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."

Campaign #22V74200005/10/2022

SEATS

Volkswagen Group of America, Inc. (Audi) is recalling certain 2017-2020 A4 Allroad, A4 Sedan, 2018-2019 RS5 Coupe, 2019 RS5 Sportback, 2018-2020 A5 Cabriolet, A5 Coupe, A5 Sportback, S4 Sedan, S5 Cabriolet, S5 Coupe, and Audi S5 Sportback vehicles. The cable connecting the seat heater to the Passenger Occupant Detection System (PODS) may have a contact fault, causing the software to misdiagnose a malfunction and disable the passenger air bag.

Campaign #21V87400010/11/2021

SEAT BELTS:REAR/OTHER:RETRACTOR

Volkswagen Group of America, Inc. (Volkswagen) is recalling certain 2021 Volkswagen ID4, Audi A4 Allroad, A4 Sedan, A5 Cabriolet, A5 Coupe, A5 Sportback, A6 Allroad, A6 Sedan, A7, A8, E-Tron Quattro, E-Tron Sportback Quattro, Q3, Q5, Q5 Sportback, Q7, Q8, RS5 Sportback, RS5 Coupe, RS6 Avant, RS7, RSQ8, S4 Sedan, S5 Cabriolet, S5 Coupe, S5 Sportback, S6 Sedan, S7, S8, SQ5, SQ5 Sportback, SQ7, SQ8, and 2021-2022 S3 Sedan vehicles. The rear seat belt automatic locking retractors may deactivate early, which can prevent the child restraint system from securing properly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."

Campaign #21V60600005/08/2021

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

Frequently Asked Questions

What are the most common Audi A4 problems?

According to Au7o's analysis of 3,100+ owner reports, the 2015 Audi A4 has 5 documented issues. The most frequently reported are: S-Tronic (DSG) Mechatronic Unit Issues, 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5, PCV Valve/Breather System Failure. Of these, 2 are rated critical and should be addressed promptly.

Is the Audi A4 reliable?

The 2015 Audi A4 has 5 known issues documented across 3,100+ owner reports. 2 issues are rated critical: S-Tronic (DSG) Mechatronic Unit Issues and 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5. 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 A4 problems?

Repair costs for known Audi A4 issues range from $150 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, S-Tronic (DSG) Mechatronic Unit Issues, typically costs $600-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What is the 2009-2020 Audi A4 S-Tronic (DSG) Mechatronic Unit Issues?

The S-Tronic dual-clutch transmission can experience mechatronic unit problems, similar to VW's DSG issues. This can cause shifting problems, jerky operation, and warning lights. Repairs typically run $600-$4,000. Severity: high.

What is the 2007-2016 Audi A4 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5?

Audi TSB 2061604/5 applies to A4 2.0TFSI vehicles for model years 2007-2013 and 2015-2016 when the coolant-temperature warning is on or clear coolant marks are visible under the front of the vehicle or engine compartment, the leak can be reproduced, and pressure testing localizes… Severity: high.

What is the 2009-2015 Audi A4 PCV Valve/Breather System Failure?

The PCV system can fail, causing rough idle, boost leaks, and increased oil consumption. The diaphragm in the valve cover can tear. This is a common issue on earlier 2.0T engines. Repairs typically run $300-$800. Severity: medium.

What is the 2009-2018 Audi A4 Coolant Flange/Fitting Leaks?

Various plastic coolant flanges and fittings can crack and leak, particularly on the side of the engine. These plastic components become brittle with age and heat exposure. Multiple leak points possible. Repairs typically run $150-$500. Severity: medium.

What is the 2009-2021 Audi A4 2009-2021 A4 2.0T Gasoline-Quality Deposit Diagnosis - TSB 2014753/13?

Audi states that contaminated gasoline or gasoline with insufficient deposit-control additives can contribute to deposits on intake valves, the intake manifold, fuel injectors and combustion chambers. Possible results include rough running after cold start, extended cranking, hes… Severity: medium.

2015 Audi A4 Problems: 5 Known Issues

All 5 Known Issues

2007-2016 Audi A4: 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5#

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2009-2015 Audi A4: PCV Valve/Breather System Failure#

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2009-2020 Audi A4: S-Tronic (DSG) Mechatronic Unit Issues#

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2009-2018 Audi A4: Coolant Flange/Fitting Leaks#

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2009-2021 Audi A4: 2009-2021 A4 2.0T Gasoline-Quality Deposit Diagnosis - TSB 2014753/13#

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Other Audi Models

Frequently Asked Questions

What are the most common Audi A4 problems?

Is the Audi A4 reliable?

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

What is the 2009-2020 Audi A4 S-Tronic (DSG) Mechatronic Unit Issues?

What is the 2007-2016 Audi A4 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5?

What is the 2009-2015 Audi A4 PCV Valve/Breather System Failure?

What is the 2009-2018 Audi A4 Coolant Flange/Fitting Leaks?

What is the 2009-2021 Audi A4 2009-2021 A4 2.0T Gasoline-Quality Deposit Diagnosis - TSB 2014753/13?