Hello,
got my car back from Lexus today with all the work carried out and I wasn't charged a single penny.....hooray!!
The work done included new pistons with modified curved head, new ERG valve,modified head gasket and modified catalytic converter.
According to Lexus the work would have cost in excess of £4800 and will cure this problem for good,they also said that doing low mileage local type driving without getting above 40-50 mph was the main cause and as I mainly do motorway/A road driving the damage may have been done before I bought the car.
Got to say thanks to Lexus and Lexus Glasgow as have read of other car makers/dealerships whose engines suffer from similar issues and they will not repair outside the warranty.
Anyone with similar issues should get the same service so don't pay for this issue to be sorted.
Have to run the car in for 600-800 miles and take it back for a check up but am now considering what to do next,keep the car or do I get rid whilst it is sorted......will find it hard to move from Lexus as have been spoiled with the quality and also the dealership service.
Cheers for the replies