Audi Workshop Manuals > A4 Mk3 > Power unit > 4-cylinder ... (Clifford Murray) As vrea sa aflu mai multe informatii despre aceste doua motorizari (probleme, fiabilitate, intretinere) si ce motorizare recomandati. After complete engine rebuild (all new gaskets including. Custom exhaust, dpf and egr remove, remapped.
The sound starts when I move the key to the ON position, without starting the engine.
I'm thinking this is probably the EGR valve fluttering.
Some pictures of the engine removal progress. We'll see how this works out. I know there is a valve which Audi's have had an issue with which do exactly this.
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