I have had sluggish performance on my 2003 Jetta (145K) and was just told by dealer the I need egr cooler cleaned ($834) as well as (they said "less serious" but should be done) new egr valve and MAF ($716). I have looked over the info on this forum (thanks!) about egr but am a bit confused as a non-mechanically inclined diesel owner who does no work on my own. There is the egr valve, intake manifold, cooler discussed. Will I need to do all these things at once? Does taking it in for the egr cleaning include the cooler and the valve? How much time should this take? Would it be better to just replace these than have them cleaned since they take so much time to clean and labor is the big $$. I am hoping to get someone nearby my rural hometown to do this rather than taking to dealer. Any advice appreciated.