GLK timing-chain or belt type?
How often it shoyld be changed? every 100,000km?
or first 100,000km, after that, 50,000~70,000 km?
Thank you.
http://en.wikipedia.org/wiki/Mercedes-Benz_M272_engine
Double row chain drives intake cam shafts, exhaust cams driven from gear off of intake cam.
I've never heard of it as a "maintenance" item.
saw this thread...so anywhere between 150-250k miles, maybe more...I think the rest of the car will have to be replaced before that chain.
I know old Nissan Maximas had chain and it had to be replaced at 120-140k miles.



