Originally Posted by
Lucas_R
The engine can self destruct at any time, regardless of km's. It just happens and there are plenty of stories on here of it happening to cars with very low km's on them (my car had 63,000km on it when i had them replaced as preventative maintenance, but I had a very loud rattle on startup which had me worried). Also, it may never happen - you could drive your car for 15 years and 300,000km and may never have an issue. It's a different situation for everyone.
Personally I changed mine for piece of mind, as the money I spent was far less than what it would have cost me to replace the engine if/when it failed completely. Plus the inconvenience of not having your car for several weeks while the new engine is sourced and fitted.