Help wanted by newcomer. The emission warning light came on a few days ago. A friend analysed the problems and 5 errors appeared. He cleared these to see if they would reappear. The next morning the light reappeared and he plugged in the gadget again and 5 errors re-appeared relating to the glowplugs on 4 of the 6 cylinders plus a throttle valve issue. The car is running sweetly and without a cold start problem (as might be expected with glow plug issues). I have recently had the car independently serviced and when the light came on I checked the oil level and found it to be too high, the garage removed some to take it down to the correct level. Could this have been the cause of the glow plug problem? It seems odd that the car went from zero errors then straight to 5 errors. The car has done 132,000 miles with out any previous problems. Can anyone shed any light on the matter and advise as to what I should do next? any help gratefully received. Howard.