I have an 03 Chipped A4.
The car has 66,000Kms , and has been chipped for about 25,000Kms.
How do I know when I should replace the stock DV ?

 

you MAY already have the 710N dv, in which case that dv should last for quite a while (50k+ miles)...we need someone to confirm for us exactly when they started using the 710 stock in the B6s...i know for sure the 04s have them, but i don't know about the older models

 

yea I heard the 04 has it.
But Im not sure about my car.

 

well, since you've gone 30k miles on the stock dv, i'm going to say you probably do have the 710N. B5s that don't replace the dv when they chip usually go out after a few weeks, sometimes only a few hours of driving.

 

really .. I had no Idea.
I just want to be sure I am not loosing any boost