my 95 c220 has about 97K miles on it and Im beginning to wonder about things I should be keeping an eye on or replacing. Aside from following the service manual, these are things I have had changed due to problems or symptoms through the years:

1. Engine, Coil, and Air Pump Harness (new)
2. A/C Compressor and Drier (rebuilt)
3. Serp Belt (new)
4. Water Pump (new)
5. Alternator (rebuilt)

thinking about changing my OVP per all the stories here.

would you guys have other recommendations as to things that might start needing replacing or watching out for?

1. Spark Plug Wires?

2. Timing Chain? Symptoms of going bad?

Thanks for your time!