Originally Posted By: Mauro
The OP simply needs to sit down with his girlfriend and introduce her to the Owner's Manual and show her where all the relevant maintenance information can be found. That way in the future, she can make a much more informed decision on her own and not depend on some minimum wage clerk. If that is too difficult, tell her to go to the Mercedez parts counter and ask them.
Alternately, call MB roadside assist.
The OP simply needs to sit down with his girlfriend and introduce her to the Owner's Manual and show her where all the relevant maintenance information can be found. That way in the future, she can make a much more informed decision on her own and not depend on some minimum wage clerk. If that is too difficult, tell her to go to the Mercedez parts counter and ask them.
Alternately, call MB roadside assist.