I realize this has probably been beat to death on this and other forums, but I was hoping to get some more recent input. I currently use a w115 220D as my daily driver, and despite being an excellent, reliable, and fuel efficient (for my needs) car, I'm looking to upgrade to something that's a little more refined. The first thing that jumps to mind is a 05-06 CDI, but they're right at the upper end of what I'm willing to spend, and I'm a little worried about being able to do repairs myself. I'm still stinging from the ABC flush on my S55 last week.

The w210 diesels seem to be a nice compromise, but I see that reported fuel economy seems to be all over the place. I meticulously track my 220D's mileage on Fuelly, and you can see in my signature that I've gotten around 34mpg over the past 30k miles. While I'd like to match that, realistically 30mpg would keep me happy. I've noticed that I tend to get higher economy that what most people report, probably because my commute is about 50 miles/day at probably 85% highway. I'm also fairly light on the pedal, although I wouldn't say I drive like a grandma. I'm finding myself rambling on so I'll list my perceived pros/cons for each chassis:

W211

• Pros:
  1. Fuel economy
  2. Better creature comforts
  3. More power/torque
  4. Looks better
• Cons:
  1. 2X+ initial cost
  2. Less end-user repairability?
  3. SBC
  4. Personal preference: CDI engines seem to be more sensitive to fuel quality

W210

• Pros:
  1. MUCH cheaper to acquire. Would probably buy outright with cash
  2. Simpler IDI engine
  3. Less computerized overall
  4. Standard ABS
• Cons:
  1. Nearing 20 years old at this point, maintenance could be an issue
  2. Less power
  3. May not reach fuel economy goals

Do my perceptions line up with reality? If I went with a w210, I'd really only consider the turbo 98-99 models...I've done plenty of driving with a NA diesel, thanks. I'm also willing to shell out the cash for a CDI if they're really that much better, but I really value being able to do the work on my own car, and other than the spring perch issue, the w210 seems rock solid. The warranty on the SBC system will be wrapping up for the latest CDIs, so that's also something that weighs heavily on my mind. Thoughts?

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1963 Ford Falcon Convertible
1972 220D 4-speed
1986 190D 2.5 5-speed
1999 300D