I’ve been going through my newly acquired baby (1984 300D, 197,000 miles) and addressed all the usual things I do when I get a new car, plus a few unique issues related to the turbo-diesel. I am wondering if anyone thinks that I’ve overlooked anything?
Changed ALL fluids & filters; All new belts, radiator hoses, & water pump; Replaced many older rubber vacuum connectors; Cleaned out the banjo fitting and the switchover valve for the aneroid line; Cleaned out vacuum orifice/restrictors (used non chlorinated brake cleaner – it cleans the crud without melting the plastic); Checked the vacuum proportioning valve on the IP for proper function; Replaced leaking transmission vacuum modulator & adjusted transmission Bowden cable; Flushed injection system with diesel purge; and finally – somehow the EGR isn’t working anymore (what a shame)

.
I just received the valve adjusting wrenches today, and will do those tomorrow morning before work, and check the cam timing at the same time. Then it’s time for the Italian tune-up. I will attempt to check and adjust the boost pressure this weekend, and maybe (just maybe) tempt the fates with the aneroid adjustment as well.
The car is running much better already, and I’m now on to bigger & better things, like how to circumvent the California models’ funky RPM related boost control system. Please see the separate posting on that issue – but in the mean time, if anyone can suggest anything else for me to do, please let me know!
Thanks so much everyone!