The nipple coming off the tank edge is there in case you need additional tank venting, and can be run to a charcoal canister of Tanks, Inc. 's rollover vent valve (PN VVR).

Volkswagen is recalling 261,257 VW and Audi cars to replace a defective suction pump that could cause fuel leakage from the gas tank. ... accumulate and eventually leak through the charcoal filter.

Audi’s smallest SUV has been hit with a safety recall. 13,004 units produced for the U.S. for the 2021 and 2022 model years are called back. The suspect fuel tanks were supplied by TI Automotive ...