My wife has just taken her 2008 Nissan Micra to the local Nissan dealer because the ABS light was on and has been told that the ABS system needs replacing, due to corrosion, and has been quoted £2771 for the work. The car has only done 13,500 miles and was brought new. I cannot understand that such a costly item could have failed in such a short period. I have been in contact with Nissan but they have advised me that they are not prepared to help because the third service was not done by an authorised dealer. What should we do?