Back in 1990 we were mechanics, not "technicians". Fuel injection systems were mechanical ( for the most part anyway ), transmissions were mechanical/hydraulic, climate control was pneumatic, etc. You could take things apart and see with your own eyes what was happening. In other words, anyone with a little knowledge and a lot of patience could figure out how things were supposed to work. The biggest difference between a professional and a DIY'er was the amount of time it took to do the job. Both could do quality work. Nowadays, due to the lack of technical expertise or diagnostic equipment, most DIY'ers can't even attempt some jobs.


If someone told me fifteen years ago that things would be the way they are today I wouldn't have believed them. Still, the technology used in modern MB's is amazing, although it's understandable that some find it a bit intimidating.