2025 Audi A6

The 2.0L EA888 turbocharged engine in the A6 45 TFSI suffers from coolant leaks at the water pump and thermostat housing, a persistent issue across the EA888 platform. The plastic housing develops hairline cracks from thermal cycling, and the internal water pump impeller can degrade. Owners notice sweet coolant odor, low coolant warnings, and visible coolant pooling under the front of the vehicle.

Dealer replaces the water pump and thermostat housing as a combined assembly. An updated housing with improved plastic composition is available. The cooling system must be properly bled of air after the repair. Use Audi G13 specification coolant only. Reference Audi TSB 2028746/5 for cooling system diagnosis.

The A6's 7-speed S-Tronic (DL382) dual-clutch transmission produces shuddering vibrations during low-speed driving, particularly during gentle acceleration from stops and during parking maneuvers. The dual-clutch packs struggle to engage smoothly at walking speeds. The shudder is most noticeable when the transmission is cold and improves somewhat as it reaches operating temperature.

Dealer performs a transmission adaptation reset via VAS diagnostic system and updates the TCU to the latest software calibration. The dual-clutch fluid should be changed using the specified G 052 529 A2 fluid. If software and fluid changes do not resolve the shudder, the clutch pack assembly is replaced. Reference Audi TSB 2046783/2.

The A6 features Audi's dual-screen MMI touch response system (upper 10.1-inch and lower 8.6-inch displays) which suffers from software instability. The screens freeze, go black, or reboot while driving. The lower screen's haptic feedback can stop working, and settings revert to defaults after a reboot. Wireless Apple CarPlay is particularly unstable, with frequent disconnections and audio dropouts.

Dealer updates the MMI system software to the latest version. A full system reset may be required, which erases all saved settings and preferences. The MIB3 main unit may need replacement if software updates do not resolve hardware-level display issues. Reference Audi TSB 2055892/1 for MMI system diagnosis.

The A6's 48V mild hybrid lithium-ion battery can degrade prematurely, reducing the effectiveness of the start-stop system and coasting function. Symptoms include the engine not shutting off at stops (start-stop disabled), a warning message indicating '48V battery service required,' and reduced fuel economy. Vehicles that sit for extended periods or are used primarily for short trips are more susceptible to battery degradation.

Dealer tests the 48V battery using the VAS diagnostic system and replaces it if capacity has fallen below threshold. The battery management controller software should be updated. The 48V battery is located in the trunk area and replacement requires approximately 2 hours of labor. Reference Audi TSB 2049387/1 for 48V system diagnosis.

The A6 uses touch-sensitive capacitive sensors in the exterior door handles for keyless entry. These sensors can malfunction due to moisture intrusion, cold weather, or electronic interference, causing the doors to not unlock when touched or to lock/unlock randomly. Wearing gloves renders the sensors inoperative, which is frustrating in cold climates. Some owners report the vehicle randomly locking itself while they are loading cargo.

Dealer replaces the affected door handle sensor module. The comfort access control module may need a software update to improve sensor sensitivity calibration. Updated sensor modules with improved moisture resistance are available. The key fob battery should also be checked as weak battery signals can cause erratic behavior.

Volkswagen Group of America, Inc. (Audi) is recalling certain 2025 SQ6 E-Tron, SQ6 Sportback E-Tron, Q6 Sportback E-Tron, A6, A5, A6 Sportback E-Tron, Q6 E-Tron, S5, and S6 Sportback E-Tron vehicles. The automatic locking retractor may fail to engage when a child seat is installed using the seat belt. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) numbers 208, "Occupant Crash Protection" and 209, "Seat Belt Assemblies."

An improperly secured child seat can increase risk of injury during a crash.

Dealers will inspect and replace the right and left rear seat belt assembly as necessary, free of charge. Owner notification letters are expected to be mailed February 17, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 69D8. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.

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."

A rearview image that does not display reduces the driver's view behind the vehicle, increasing the risk of a crash.

Dealers will update the software, free of charge. Owner notification letters were mailed January 14, 2026. Owners may contact Audi customer service at 1-800-253-2834. Audi's number for this recall is 90TV. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on December 23, 2025.