You will have awesome G251 sensors in your Audi TT</br> and also you have to be capable of locate them on every side of the cabin. Particularly</br> the longitudinal acceleration sensor may be found in the back of the glove container. However</br> if you want to update it for some cause</br> You won't want to take away the glove box itself (although you could) -- you may definitely need to do away with the dashboard cease plate. It's very critical to disconnect the poor terminal from the battery whilst finishing this (or on the whole any) sensor substitute on an Audi</br> as voltage spikes to newly mounted sensors can motive them to fail. The newly established sensor will need to be coded</br> so make certain you have got the hardware (or access to it) earlier than attempting this repair your self.