Monday, 20 April 2020

******** Audi A6 Quattro Sedan (4F2) V6-3.0L SC (CCAA) Technical DIAGNOSIS AND REPAIR # 201002 Date: 100517


Fuel System - MIL ON/DTC P0455 Set



20 Fuel cap seal out of position or missing



20 10 02



2023375/1



May 17, 2010



Affected Vehicles



Condition



^ MIL on.



^ DTC P0455 is stored in ECM memory.



^ Upon visual inspection, the seal on the fuel cap is found to be out of position or missing.



Technical Background



404



When removing the fuel cap, the seal may stick to the filler neck. The seal may be pulled out of position or removed completely from the cap.



DTC P0455 is set because the cap does not seal properly.



Production Solution



A production solution is in development.



Service



1. Ensure the seal has not been damaged or pinched by being out of position. Replace the seal if damaged.



2. Apply a thin coat of Krytox lubricant to the seal and its mating surface on the filler neck.



405



Warranty



Required Parts and Tools



Additional Information



All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service



manuals for the latest information.