A3 Quattro L4-2.0L Turbo (CBFA) (2009)
Fuel: Technical Service Bulletins
Fuel System - MIL ON DTC P0300/P030X/Lean Condition
01 MIL on, gasoline quality (DTC P0300 or P030x, lean condition DTCs)
00 10 01
2014753/7
February 5, 2010.
Supersedes Technical Service Bulletin Group 00 number 09-04 dated April 20, 2009 for reasons listed below.
Affected Vehicles
Condition
The use of contaminated gasoline or gasoline with a low content of deposit control additives may result in one or more of the following conditions:
^ Excessive accumulation of deposits on intake valves, intake manifold, fuel injectors and combustion chambers.
^ Engine runs rough after cold start.
^ Excessive engine cranking time.
^ Hesitations while driving.
^ Rough engine idle.
^ Reduced engine performance.
^ Poor fuel economy.
Conditions may be severe enough to illuminate the MIL in conjunction with storage in the ECM data memory of DTCs for misfire (example: P0300,
P030x) and / or lean fuel system (example: P0171, P0174, P1128, P1130, P1136, P1138).
Technical Background
^ Condition may be caused by use of contaminated gasoline.
^ Condition may be caused by use of gasoline with a low content of deposit control additives.