YES MBZ are way to troublesome for the money. Back in the early part of last century, when car had hand cranks and magnetos, they were ALL troublesome. Really great cars seem to come from Japan ,Korea, Sweden, US made Japan designs, but not from MBZ anymore. I bet they still make and sell poorly soldered OVP relays that fail just like the original ones did. When MBZ (or was it Bosch) bid out parts production all over Europe, Asia, Mexico and South America, and ignored quality implications--they fell way way down in resulting reliability of the assembled car.