Both of my Benz's have around 170k miles and they both run great. I have been hearing that the timing chain should be changed at 100k. Should I change them even though I am having no problems.
Are there any preliminary signs that I should know about so I will know that the change is going bad?
How long do these gas engines last? 300k? 400? WHat happends after that, just rebuilding????
'89 420 SEL
'90 300 SEL
'84 300 SD (sold it)