Are you saying lexus did the job for free.
Luckily iv had nay problems on my 2007 220d.
Its chipped ( trust me theres a diffrence ).
Used bk 244 aswell. Mpg on my 100 mile trip to work at 60mph in cruise control the odd 6th gear and I can get average 47mpg to 50 plus.
Apart from the few car park dings which dent places wount touch because theres possibly slight cracking of paint. Im a happy wee lad with iy. ( mods planned once morgage sorted.
I dont use the car when home due to short journeys I use the wife C4 leob.