Anyone familiar with the 4L diesel in an MB 814 van?

[kerry]

One of the reasons I got interested in diesels is that about 8 years ago I realized there was a road that encircled the Mediteranean and thought a good retirement adventure would be to drive that road in a motorhome. Shortly thereafter I learned of the Paris to Peking club and was also interested in that. I bought a 307d motorhome in Europe and owned it for a few years, kind of testing the water. The recent thread about the Swiss Mann motorhome in Aspen has got me thinking again. I found this in Austria on Ebay:
http://cgi.ebay.de/Wohnmobil-Mercedes-Benz-814-DA-37-Allrad_W0QQitemZ140187153056QQihZ004QQcategoryZ44794QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Anyone know anything about its engine? 4L and I doubt it's turbocharged since it only has 100KW power rating on it. I'm attracted to the fact that it's a 4wd as that would be a good vehicle to drive on adventures like this. It's quite pricey and I don't know if this reflects the general value of 4WD MB vans. It only has 48k kilometers on it though.