Update - just off the phone with the service dept. They credited me back 1 full hour ($106). They agreed that the tie rods should have been 1/2 charge each side not 1 full hour each. Apparently the "new" Mercedes take 1 full hour (as in the ones under warranty which they get reimbursed for).
To be fair Sean (service tech) was polite and returned my call within about 15 mins after researching the issue.
Moral of the story, if something doesn't look right, speak up. Especially if its to your benefit
