Hello Mondeofahrer, with my TDCI 96 Kw,Bj. 03.2003 I now have a blower of the flat belt at 800 1/min when the air conditioning is switched off again. When the front disc heating is switched on it becomes quieter and when the air conditioning is switched on it is gone. The TSI was carried out in 05.2005 (new modified belt tensioner). Does anyone know this problem of the recurring roaring ? Did someone get the blower removed forever (longer 1 year) ? The new TSI is from 0 8.2005, there is now to be exchanged belt tensioner, belt disc and belt (500 Euro !!) I fear this will come again and again. Can one tighten the belt ? Does it only use the belt to exchange ? Thanks for many answers. Greeting Horst