Yipee. Bringing the car to Belfast, they will cover it under warranty once it
has lexus service history or other garrage stamp once they used genuine lexus parts.
They have four other cars in with the same issue so looks like i'll be without a car for 3 weeks.
Ah well it will give me some time to try out an Audi A5 3.0 tdi before i purchase one.
thanks for the help, saved myself at least 2,500k by looking on the forum.