Timing chain

[Lee Endean]

Hi guys not long brought my 2011 Mercedes c class 220 cdi estate. It’s now on 140k was just getting worried about the timing chain on the car when should I be looking at changing it/ or how long are they meant to last

 

[malcolm E53 AMG]

I wouldn’t disturb anything until it starts to rattle on start-up

 

[Lee Endean]

I wouldn’t disturb anything until it starts to rattle on start-up

Ok thanks Malcolm since my ownership I’ve been changing the oil every 6 thousand miles as I’ve been reading this helps plus I’ve disabled stop start