Ok, so I went to my local indy shop and they checked the lower arms, it turns out that the dealer gave me wrong info, they told me the left lower control arm and it is actually the right one that was bad. I ordered the right one online from oembimmerparts for around $100 and had it replaced today for $100. So, the moral of the story is ... dealership sucks big time for giving me the wrong info and wanted to charge more than twice for job. I'm very disappointed at them.