Tech notes
There is a factory service bulletin for the P3137 code for the following models:
2005-2007 Audi A3
2005-2007 Audi A4
2007 Audi A4 Cabriolet
2008 Audi TT
Audi Factory Service Bulletin OBDII Code P3137
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
AUDI Technical Service Bulletins for P3137 code
2005 AUDI A3 ELECTRICAL SYSTEM: SOFTWARE
2005 AUDI A4 ELECTRICAL SYSTEM: SOFTWARE
2006 AUDI A3 ELECTRICAL SYSTEM: SOFTWARE
2006 AUDI A4 ELECTRICAL SYSTEM: SOFTWARE
2007 AUDI A3 ELECTRICAL SYSTEM: SOFTWARE
2007 AUDI A4 ELECTRICAL SYSTEM: SOFTWARE
2007 AUDI A4 CABRIOLET ELECTRICAL SYSTEM: SOFTWARE
2008 AUDI TT ELECTRICAL SYSTEM: SOFTWARE