Hi, Anyone ever had these back from the VCDS, the engine light is on along with the flashing glow plug L. The engine is also in limp mode not going above 3000revs. It's beenleft running with the revs at 3000 for 25 mins and this cleared the particular filter light.... I cant do a forced regen from my VCDS as its greyed out due to a missing file..... Not sure whats going on or how serious it is now though, looking at selling soon so cautious of costing a fortune!!