Good for you. Sounds like they will deal with the issue correctly this time.
And perhaps refund the O2 sensor work? Either way you can take out your frustrations on their kompressor for a few days

__________________
-Marty

1986 300E 220,000 miles+ transmission impossible
(Now waiting under a bridge in order to become one)

Reading your M103 duty cycle:
http://www.peachparts.com/shopforum/831799-post13.html
http://www.peachparts.com/shopforum/831807-post14.html