A4 Quattro Cabriolet V6-3.2L (BKH) (2007)
Spark Plug: All Technical Service Bulletins
Engine - Runs Rough/MIL ON/Misfire DTC's Set
01 08 09
2014923/2
November 19, 2008.
Supersedes Technical Service Bulletin Group 01 number 07-15 dated April 30, 2007 for reasons listed below.
Affected Vehicles
01 MIL on - misfire DTC stored after cold start
Condition
Sporadically, the engine may run slightly rough for a few seconds after cold start. The MIL may illuminate with a DTC for misfire on one cylinder only
(P0301, P0302, P0303, P0304, P0305 or P0306) stored in the ECM data memory. The rough running condition disappears a few seconds after cold start
and does not exist with a warm engine.
Technical Background
Not applicable.
Production Solution
Not applicable.
Service
1. For 3.2FSI only:
Ensure that TPL 2010890 - Cold engine runs rough or stumbles; warm engine may stall when engaging gear and vehicle is stationary has been
performed.
2. Follow normal Guided Fault Finding Diagnosis, for example:
-
Swap spark plugs and ignition coils between affected cylinder(s) and good cylinder(s).
-
Check compression and leak-down of affected cylinder(s).
-
Verify fuel quality. (Also refer to TPL 2014753 - Gasoline quality.)
-
Swap fuel injectors between affected cylinder(s) and good cylinder(s).