My '97 300D delivery valves started leaking. MB had the o-rings in stock, but the copper washers I had to order. Gonna pick em up this week and "get started". While researching the repair a lot of threads inevitably lead to the carbon choked intake, EGR, etc. The car recently started throwing the P1475 code, too.
This lead me to start thinking about my 240D in this respect, as well. The 240 has 205k, starts right up (winter and summer), doesn't smoke, runs great...bone stock. Always with "if it ain't broke, don't fix it" in the back of my mind, what, exactly, would be the benefit to the EGR delete on the 240? Does performance noticeably improve? Lots of info on the 300D delete and why to do it, but not so much on the 240. Naturally, no codes, limp mode, OBD, etc. nonsense to worry about, so should I be concerned? Or, leave "leave well enough alone"? However, always interested in finding a couple more "poinies" in a car with 67hp brand spankin new (almost 40 years ago).