As a precaution, I also want to replace my diverter valve.
I've never replaced it, bought the car in 2010 and I don't know if the first owner ever replaced it.
The mk5 gti is from 06-2005.
Everything is stock, except a stage 1 ABT remap.
How to check if my old DV is 'faulty'?
If is is faulty, is there always a faultcode (I have Vagcom and have no faultcodes).
What version DV (complete partnumber) to order at VW?
Is there a how-to, to replace the DV on the original location?