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The story is this, Passat b6 2.0 tdi BMR 170hp on dsg dq500. the engine started to work loudly and roar, increased fuel consumption and ate a little oil. I disassembled it, thought it was the camshaft and hydraulics, but the problem was in the valves, the oil seals were loose and the valve seats were clogged and the tightness was gone.. and when I removed the intake manifold, there were loud bangs @Clubsport_Passat @VolkswagenMexico @volkswagen @gbcremont @ildarauto