Water can then drip onto the top of the amplifier and access through the cooling fan on the amplifier. This unit is situated in the rear right hand side of the boot – on the top of a metal cradle – there can be a leak from the rubber boot stopper which perishes with age. Recoding can only be achieved using ODIS or VAS online … checking status only can be achieved with VCDS What Fails and Why
The reason for this is down to Audi protecting the modules of each car – the VIN number of the car is stored in the amplifier module – when the unit is being recoded the VIN number is compared online against a database of blacklisted VIN numbers, coding can not proceed if there is a match, rendering the unit useless. These units are ‘paired’ or component protected to the original vehicle – so simply swapping one over will result in only one operation channel.