This bulletin applies to 2016-2018 Audi A6, 2017-2018 A4, 2018 A5 and 2018 Q5 vehicles, equipped with a manual transmission. Squeaking noises may be heard from under the vehicle.
The noise may be traced to the MTF (manual transmission fluid) pump V553. When removing the pump connector, if the noise is eliminated, replace the MTF pump.
A replacement MTF pump is available as P/N OCK321281K. Four flange screws are also needed, as P/N N91173601.