My advice to anyone starting out in this trade is to avoid dealerships. Unless you want to be a specialist, avoid dealerships until you feel comfortable with a general knowledge of vehicles. I started out in a non-dealership, worked there for ten months, went to school, and was offered a job at a Lexus dealership. The money was too good to not do it. While I made great money, I was learning nothing (all I did was oil changes and tire stuff). After that, I went to a normal Toyota dealership. Again, I learned very little. By the time I went to an independent shop, I was into my third year as an apprentice, and THEN I started to learn. Working on every kind of vehicle, mostly crappy ones, is when my education really started to take place. I hope to go back to a Toyota dealership someday (for the money and relative peace of mind), but not until I feel comfortable in my abilities. I will be a journeyman about a month from now, but if I don’t feel comfortable with that qualification, I’m not going back to a dealership.
I went to school with a BMW apprentice a couple years ago. He seemed like a fine technician, but that was only because of his total enthusiasm for the trade, not from his experience at the dealership. He complained that the only thing he did at the dealer was oil changes and “fit batteries”. To this day, I have no idea what a “battery-fitter” does, or what it entails.
However, the really good thing about being a dealer technician is that you have up-to-date knowledge of the industry, which is ever-changing. Techs need to keep up with the technology for sure, but they need a solid foundation of knowledge in the trade in general before worrying about the incredible changes in the industry.
My opinion. Others might think otherwise. Good luck with your apprenticeship!