I just bought a '79 300D with 150K on it. The Dr. I bought it from never adjusted the valves (tapping) and never replaced the timing chain & rails in 20 years. It has a new exhaust system...brakes and inspection sticker. The car is in great shape...I took it straight to my mechanic to check it over...here's the list he came up with. It handled and ran great!

1. Repack both front wheel bearings (front-end tight)
2. Replace the braided cloth injector return lines (damp with fuel)
3. Adjust the valves (tapping)
4. Change trans filter & fluid
5. Replace glow plugs
6. Check timing chain for wear
7. Replace timing chain rails
8. Do leak-down test

This car was owned by the same person for 20 years and he was clearly emotional when I bought it. He had taken "her" out for one last spin, and asked me to please take care of his "baby".
Any thing I might have missed...please tell me.

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