If it were my own car I would insist on it being done earlier as its a lot cheaper than an engine rebuild.
As my car was a co car leased I always had to push for things to be done. I'm sure the stealer/lease co would have not bothered at times.
New Company car 2011 BMW F10 520D SE Xirallic Imperial blue/Cinnamon Brown 6FL USB, Front Sports seats, Sports steering wheel, Xenons - Arrived 3rd Dec 2010!
Scrapped RIP 12/08/2010 - E90 320si - Le Mans Blue - Totally standard specification
Long gone - 00 Peugeot 306 2.0 SE Cabriolet, 94 Rover 214 SEi, 91 Fiat Uno 60S Mk2