what to do next on 2003 Audi A6 Quattro

my check engine light came on and I was told by a service machinic that it has to do with the cat not warmming up what do I need to do next.

by in Suffolk, VA on March 03, 2011
1 answer
ANSWER by on March 03, 2011
Which engine? I don't think the 2003 models came with heated cats. Are you sure it was not the O2 sensor heating or cat. converter efficiency code? Do you have the exact code? Zee
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