hi im new to this site but hope someone outhere can help iv,e got a 250se-l and reported 2 faults to lexus carlisle the faults were rattling on start up which lasted about 3 sec and erratic idling . they came back to me with a list of problems i couldnt beleve on a nearly 3 year old car 1 rear break calipers seized 2 rear shocks leaking oil 3 vvti valves loosing presure which is why it was rattling on startup 4 valves in thr cylinder head badly carbond up and need replacement this car has done 28000 miles and had 4 services in 3 years . carlisle say they have never heard of this valve carbonisation problem has anyone else ?