The facelifted 2023 Audi A6 has been spied testing once again by our photographers. Our sources tell us the German automaker is wrapping up testing on what's expected to be mild changes inside and out. The exterior updates are likely to include fresh shapes for the headlights and taillights, a tweaked front bumper featuring new intakes, and a modified grille. Unlike the upcoming electric A6 e-tron, this one will not have split headlight design.

Audi has not confirmed it just yet but we expect buyers will have the option of getting OLED lighting. Perhaps the most significant change will be inside. The cabin will receive infotainment system updates, which are always welcomed. Unfortunately, our spies were not able to see what's happening inside.

The overall interior design layout, however, is not expected to be drastically different than the outgoing model. Under the hood, the engine options will likely remain, meaning either a 2.0- or 3.0-liter turbocharged engine. At some point down the road, these styling and tech updates will migrate over to the rest of the A6 platform-based lineup, which includes the A7, S7, RS7, A6 Allroad, and RS6 Avant.

Speaking of which, Audi issued a recall for all of those models late last month for quite an unusual reason: liquid potentially spilled in the rear seat could find its way into the gateway control module, which is located beneath the rear seat.

Audi said that liquid spilled in the rear seat could possibly penetrate into the module and then cause the vehicle to enter limp mode. This would make the vehicle slow down but not shut off entirely. Still, this is a potentially dangerous situation for any driver to be in, especially when driving in traffic. The required fix is the installation of a protective cover to prevent liquid from entering the module. The updated 2023 A6 will surely have this problem resolved on the assembly line.

We reported last summer that the facelifted A6 will debut by the end of this year, so full details could arrive at just about any time.