Originally Posted by Army

Timing chain elongation I have 0 strech on the chain & I will check this out

http://www.peachparts.com/Wikka/OM617TimingChainStretch

If you are looking for extra work then how about:-

Remove the prechambers and clean them out - apparently they get gunked up over time. I will check this out

Refurbish your starter motor replaced last year

http://www.peachparts.com/Wikka/OM617StarterRebuild

Refurbish your alternator yes thank you

http://www.peachparts.com/shopforum/showthread.php?t=294656

Front crankshaft seal if there is any evidence what so ever that it has leaked (much easier to reach it now!) I will check this out thanks

http://www.peachparts.com/Wikka/OM617CrankshaftSeal

Replace your oil cooler lines for the automatic transmission and engine if you have them.