My car is corsa eco 2011 1.0 Its at a Vauxhall dealership they said it needs new time chain & tensions it will cost £700 but wont be done under warranty it also needs new plugs and coil pack at a cost of £300 which will be done under warranty. Vauxhall wont cover time chain as my 1st service was July 2012 and I purchased the new car in May 2011 my 2nd service was Feb 2013 done earlier as I had done more miles. My total mileage now is 29500 any advice ? Do I have a case to plea they do it under warrant my car services were done at independent garage. any help appreciated.