another question

[turboaudi]

changed the maf , tis a bit better running, but still lumpy on normal driving and when turbo comes in , anything else i could check or replace

 

[S3Andy]

DV?
Mine is holding back a little and that's the first thing I'm going to change.

 

[turboaudi]

i think the diverter valve will be the next thing i change , ive seen some forged ones on ebay that are meant to be a direct fit for audi and vw might try one of those to see if they are any better than the standard fit ones

 

[shineydave]

i've just serviced my S4 and found the gaps on the plugs were woefully out, might be worth checking them