hi guys, im new to this forum so please try not to be to detailed with me as im am no mechanic, wish i was though with how much ive been quoted. Rite i bought the 1.9TDi A6 w2000 for 2750, 114,000 on clock no service history. i though great deal, considering i seen them going for about 3790+. So i drive it back to leicester from liverpool and take it to a mechanic because of this rattling noise, to all the mechanics ive been, they said its sounds like the hydraulic tappets, these cost about £90 and plus labour to change em, this other mechanic, good friend of mine told me that the car has more problems than that, he said if i took it to audi dealer they would quote me about 1500+ , he started explaining other faults but even he got lost of how many he was metnioning. Now i need to know what to do some sort of advice, the car rattles from start with cold engine to Hot engine, same noise, if i hold the accelarate padel when the car is still i get blue smoke. Ive booked my car in for this friday at a local garage, he said there could be three to four things causing all this. 1. Hydraulic tappets not opening up properly 2. not much oil or not the right oil for the engine is used. 3. Timing belt set incorectly so a new timing belt might be needed. 4 . Cam tensioners need to be checked. So much for a cheap new car. The bloke quoted me £100 for checking the timing of the belt, and extra 80 for changing it with a new one, he said the belts are 160 alone, but because i know his friend he's doing me a favour. so what do you guys think, whats is wrong with this car, its a shame considering they are very reliable and strong cars, but i think this one hadn't been looked after very well, tried contacting the bloke and his wife said hes away, which i ery much doubt that but there we go, no chance of oney back just to fix it or sell it. any advice or explination would be great, thank you.