What is the 2022 Audi A4 2022 A4 Infotainment Main-Unit Recall 91Ei - VIN Check Required?

NHTSA 22V806/Audi 91Ei covers certain 2022 A4 Sedan and A4 allroad vehicles. Internal damage can occur in the infotainment main unit after vehicle shutdown; on restart, the center display and rearview-camera image may be unavailable. The recall does not establish a generic 2023-2… 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 1996-1997 Audi A4 1996-1997 A4 Ignition-Switch Recall 06V-403 (JS) - VIN Check Required?

NHTSA 06V403/Audi JS covers certain 1996-1997 A4 vehicles and superseded recall 00V317. The ignition-switch spring anchor can fracture so the key does not fully return to the run position after starting; windshield wipers and headlights may then be inoperative. VIN verification i… Severity: high.

What is the 2009-2011 Audi A4 2009-2011 A4 2.0T CAEB Oil-Consumption Procedure - TSB 2027731/7?

Audi TSB 2027731/7 covers a customer complaint on 2009-2011 A4 vehicles with the CAEB 2.0 TFSI. It checks the installed crankcase-pressure regulating valve, specifies a front crankshaft seal and bolt, applies matching ECM software and performs an electronic oil-consumption measur… Severity: high.

What is the 2009-2013 Audi A4 2009-2013 A4 Timing Chain/Tensioner Diagnosis - Warranty Key U35?

Audi Warranty Bulletin AWA-18-15 applies only to certain 2009-2012 A4 Avant and 2009-2013 A4 Sedan vehicles with the 2.0L EA888 engine whose VIN data contains Warranty Key U35. It historically covered a failed timing chain and/or tensioner for 10 years or 100,000 miles, with cond… Severity: high.

What is the 1997-2000 Audi A4 1997-2000 A4 Driver-Airbag Inflator Recall 69BT - NHTSA 20V056 / 22V471?

Audi’s 69BT campaign circular covers certain 1997-2000 A4 vehicles. The NHTSA filing history has two A4 model-year branches: 20V056 lists 1999-2000, and the later 22V471 correction adds the 1997-1998 branch that had been entered incorrectly in the portal. Moisture-related NADI in… Severity: high.

What is the 2005-2007 Audi A4 2005-2007 A4 2.0TFSI Cam-Follower / HPFP Diagnosis - TSB 2013147/12?

Audi TSB 2013147/12 applies to 2005-2006 A4 vehicles with the BPG engine and 2007 A4 vehicles with the BWT engine when the MIL is on and P2293 is stored; P0087 or P1093 may accompany it. Audi’s procedure checks fuel pressure and wear at the cam follower, intake camshaft lobe and… Severity: high.

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.

What is the 2010-2011 Audi A4 2010-2011 A4/A4 Avant CAEB Bosch Ignition-Coil Diagnosis - TSB 2033561/2?

Audi TSB 2033561/2 applies only to CAEB-engine A4/A4 Avant vehicles in these VIN-suffix ranges: 2010 AA121937-AA999999 or AN045790-AN999999; 2011 BA000001-BA128744 or BN000001-BN045180. The supported condition is an engine that shakes with P0300, P0301-P0304 and/or P130A because… Severity: medium.

What is the 1997-2001 Audi A4 1997-2001 A4 ABS 5.3 Scan-Communication Fault - TSB 2042048/1?

Audi TSB 2042048/1 applies to 1997-2001 A4 vehicles with ABS 5.3 when a scan or emissions tool cannot communicate with the vehicle and the ABS and brake warning lamps illuminate. Audi attributes the communication fault to the ABS control module interfering with the diagnostic bus… Severity: medium.

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.

Audi · Known Issues

1996-2025 Audi A4 Problems: 13 Issues Every Owner Should Know

1996-2025 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated July 2026

Share:@au7o.io

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1996-2025 Audi A4 has 13 documented known issues, with 9 rated critical. The most serious are 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required, 2022 A4 Infotainment Main-Unit Recall 91Ei - VIN Check Required, 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5, 1996-1997 A4 Ignition-Switch Recall 06V-403 (JS) - VIN Check Required, 2009-2011 A4 2.0T CAEB Oil-Consumption Procedure - TSB 2027731/7, 2009-2013 A4 Timing Chain/Tensioner Diagnosis - Warranty Key U35, 1997-2000 A4 Driver-Airbag Inflator Recall 69BT - NHTSA 20V056 / 22V471, 2005-2007 A4 2.0TFSI Cam-Follower / HPFP Diagnosis - TSB 2013147/12 and 2002-2006 A4 Factory-CVT Settlement History - Component-Specific Diagnosis. DIY maintenance guides at .

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 1996-2025 Audi A4 has 13 documented issues. The most frequently reported are: 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required, 2022 A4 Infotainment Main-Unit Recall 91Ei - VIN Check Required, 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5. Of these, 9 are rated critical and should be addressed promptly.

Is the Audi A4 reliable?

The 1996-2025 Audi A4 has 13 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 9 issues are rated critical: 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required and 2022 A4 Infotainment Main-Unit Recall 91Ei - VIN Check Required and 2007-2013, 2015-2016 A4 2.0T Coolant Leak at Pump or Thermostat - TSB 2061604/5 and 1996-1997 A4 Ignition-Switch Recall 06V-403 (JS) - VIN Check Required and 2009-2011 A4 2.0T CAEB Oil-Consumption Procedure - TSB 2027731/7 and 2009-2013 A4 Timing Chain/Tensioner Diagnosis - Warranty Key U35 and 1997-2000 A4 Driver-Airbag Inflator Recall 69BT - NHTSA 20V056 / 22V471 and 2005-2007 A4 2.0TFSI Cam-Follower / HPFP Diagnosis - TSB 2013147/12 and 2002-2006 A4 Factory-CVT Settlement History - Component-Specific Diagnosis. 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.

What year Audi A4 is the most reliable?

Reliability varies across model years of the Audi A4. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 1996-2025 Audi A4 with 13 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.

What is the 2021-2022 Audi A4 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required?

NHTSA 22V742/Audi 91DZ covers certain 2021 A4 Sedan and A4 allroad vehicles, while NHTSA 21V825/Audi 91CR covers certain 2022 A4 Sedan vehicles. The rearview-camera image may be blank, black or initially unavailable when reverse is selected. The applicable population and software… Severity: high.

All 13 Known Issues

Other Audi Models

Frequently Asked Questions

What are the most common Audi A4 problems?

Is the Audi A4 reliable?

What year Audi A4 is the most reliable?

What is the 2021-2022 Audi A4 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required?

2021-2022 Audi A4: 2021-2022 A4 Rearview-Camera Software Recalls 91DZ / 91CR - VIN Check Required#

2022 Audi A4: 2022 A4 Infotainment Main-Unit Recall 91Ei - VIN Check Required#

1996-1997 Audi A4: 1996-1997 A4 Ignition-Switch Recall 06V-403 (JS) - VIN Check Required#

1997-2000 Audi A4: 1997-2000 A4 Driver-Airbag Inflator Recall 69BT - NHTSA 20V056 / 22V471#

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

2009-2011 Audi A4: 2009-2011 A4 2.0T CAEB Oil-Consumption Procedure - TSB 2027731/7#

2009-2013 Audi A4: 2009-2013 A4 Timing Chain/Tensioner Diagnosis - Warranty Key U35#

2010-2011 Audi A4: 2010-2011 A4/A4 Avant CAEB Bosch Ignition-Coil Diagnosis - TSB 2033561/2#

2005-2007 Audi A4: 2005-2007 A4 2.0TFSI Cam-Follower / HPFP Diagnosis - TSB 2013147/12#

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

2002-2006 Audi A4: 2002-2006 A4 Factory-CVT Settlement History - Component-Specific Diagnosis#

1997-2001 Audi A4: 1997-2001 A4 ABS 5.3 Scan-Communication Fault - TSB 2042048/1#

2022-2025 Audi A4: 2022-2025 A4 Brake Squeal or Pulsation Diagnosis - TSBs 2051095/8 and 2022584/12#