Found while perusing EBay:
http://reviews.ebay.com/Benz-LEMONS-Beware-of-any-2000-through-2005-
Edit comment: Sorry, I can't seem to get the link to point to the exact review. If you go to the
Reviews and Guides from the link and search 'Mercedes', select only for 'EBay motors' (there are about 48 of them)the one I read is on the list on page 2. The review is Benz LEMONS Beware of any 2000 through 2005 models. Try
http://reviews.ebay.com/Benz-LEMONS-Beware-of-any-2000-through-2005-models_W0QQugidZ10000000001252239
Other 'informative' titles from this same guy:
Benz DEFECTS are worse than ever
http://reviews.ebay.com/Benz-DEFECTS-are-worse-than-ever_W0QQugidZ10000000001252224
Benz SCAM with certification of Starmark Vehicles
http://reviews.ebay.com/Benz-SCAM-with-Certification-of-Starmark-Vehicles_W0QQugidZ10000000001271785
Benz Deceptive ads for Certified Pre Owned Vehicles
http://reviews.ebay.com/Benz-Deceptive-ads-for-Certified-Pre-Owned-Vehicles_W0QQugidZ10000000001339966
Of course, these and many like them were all likely penned by disgruntled EBay buyers, who may be venting their frustrations on Mercedes instead of EBay...