Right guys i need your brains. My brother has a 2005 a3 2.0tdi (140). He was driving back from heathrow the other days and wheelspun a little on the ice causing his engine management light to come on. Luckily i was having the RAC come out for my car (coilpacks!!!) and checked his car too which came up as throttle sensor. it was cleared but has returned and audi have said its some sort of motor in the exhaust inlet manifold and it will cost £400 to repair!! are they having him on or is it a common fault?