And if you car is equipped with the single row chain, and you don't want to upgrade to double, expect to replace the chain every 30K miles.
Timing chain replacements are easy and really don't involve "opening the belly of the beast". An ounce of prevention is worth a pund of cure.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.