Replacing a tie rod throws off the front end geometry. Even if you think you measured everything perfectly before, during, and after the replacement, it's not going to be perfect. You will need to get an alignment. Don't bother messing with the steering wheel - everything will be good again after the alignment. By the way, a standard OBD2 scanner will NOT reset the airbag light - you will need to go to the dealer or find a good indy who has the appropriate (expensive) scanner and pay them to reset the light. 1/2 to 1 hour shop labor charge is typical for this type of service.

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280