Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
SB-090930
MERCEDES: THE LIMITED WARRANTY ON THE SBC HYDRAULIC UNIT FOR MODELS 211, MODEL 219 AND MODELS 230 WAS EXTENDED FROM THE ORIGINAL 4 YEARS/50,000 MILES TO 10 YEARS WITH NO MILEAGE LIMITATION. THE SBC HYDRAULIC UNIT EXTENDED LIMITED WARRANTY APPLIES TO ALL CONDITIONS THAT JUSTIFY THE REPLACEMENT OF THE SBC HYDRAULIC UNIT UNDER THE STANDARD WARRANTY TERMS AND CONDITIONS. *PE
8210196
REVISED REPAIR PROCEDURE AND ADDITIONAL APPLICABLE MODELS. MODEL 170, 202, 208 AND 210 MODELS. FRONT FOG LAMP(S) INOPERATIVE. MERCEDES-BENZ. *TT MODEL YEARS: 1994-2004. UPDATED 09/09/08. *PE
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.