egr soleenoid

So the past few weeks I thought my car was running a bit sluggish every now and again.. when the other day I was coming home from work and it was intermittently sluggish. Last night when coming home it was doing the same until suddenly it went into limp mode and the glow plug light started...

Hi guys need some expert advice been struggling with this for weeks and dont know where to go next. Story starts that a bought a 2005 a5 2.0 tdo blb (140) with what I was told needed a turbo. Got it home to find that she needed more than a turbo, the head was away and she was pressuring the...