Late 2006 with the facelift, also the V6 OM642 engine replaced the IL6 engineWhat year did that change ?
I had a CLK270CDI 2006 did 115K miles. Nothing mechanical failed, did about 48mpg.Nothing wrong with a 211 270, not as powerful as a 320 but I averaged 42mpg a month with a lot of city work, on a run I saw 50+ many times. SBC is a pain but a rebuilt pump isn’t expensive now, @JohnnySBC rebuilds them for a very low cost.
I did around 110k in mine averaging 46mpg a year I think, the water pump in mine did get replaced but that was only due it getting a bit noisy, other than that just typical wear and tear stuffI had a CLK270CDI 2006 did 115K miles. Nothing mechanical failed, did about 48mpg.
I was never a fan of the 612 for some reason, just didn’t quite have the sweet spot the 647 seemed to have had,270CDI has perhaps best 'power feeling / mpg' ratio, W210 has also available with OM612 but not in UK IIRC?
OM647 was dropped in W211 facelift.
W209 is good choice if slightly smaller interior is ok, but I think price it still higher than W210.