I find it amusing that people lump all 140s together on issues of reliabilty. 140 reliability is very much a function of the model. A 97 S500 would indeed be a handful - but only because of ASR, ADS, 722.6 transmision, etc. At the other extreme an optionless 1995 SWB S320 is so simple and reliable that taking care of it isn't really even a challenge.