That's purely because they are special trained experts, that know every thing there end up being know about these cars and if you're take it to someone who is not then it will now end up costing you more wealth. Case in point, I took My 2003 BMW to get new tires and an alignment. Roughly a week I realized the tires were warring abnormal and noticed auto driving amusing. So I took it for you to the shop that did the work, which coming from the way wasn't an authorized BMW dealer, and they finally...