Audi · Canada · Crit
Audi A3, TT: Fuel System
Affects Audi A3, TT · 2006–2010 — about 3K vehicles.
The hazard
On certain Audi A3 Quattro, TT Quattro and TT Quattro roadster, the closing force of an internal spring of the fuel tank ventilation valve is not adequate enough to hold the valve closed under extreme conditions. During certain driving manoeuvres, liquid fuel may enter the fuel tank venting system and migrate into the evaporative system, saturating the carbon canister. Should this occur while driving, the vehicle may experience performance issues (i.e. vehicle jerking) and the Malfunction Indicator Lamp (MIL) in the instrument cluster could illuminate. In certain instances, fuel could leak from the evaporative system leak detection pump filter. A fuel leak, in the presence of an ignition source, could result in a vehicle fire causing property damage, personal injury or death. Correction: Dealers will replace the fuel tank ventilation valve with an improved version.
What to do
Contact your dealer; the remedy details were not included in the filing.