one for the 406 derv owners

[jord294]

has anyone fitted a dump valve to either 1.9 or 2.1 td ??????

(beats hasty retreat)

[FlySpeck]

hi mate,

i've seen other td's with dump valves on, they are ok to begin with but are generally useless and the noise gets annoying after a while, easily doable though. my a4 20v turbo has a cone filter which lets the factory dv be heard very clearly so a lot of audi lads have gone back to a panel filter for this reason.

On some engines an engine management light will also result, and a slight overfuelling on lift-off due to metered air escaping from the dv.

[Gary406]

havnt personally but im sure i have read it can be done, altho i wouldnt see any point myself

[mandelbug]

Dervs are funny with dump valves. I believe that there is a specific one you need but generally it's not worth bothering with