service indicator

Hi, I have a problem with the service indicator on my W209 CLK500. The car had a dealer "A" service 600 miles ago but last week the battery went flat after leaving the lights on.........:shock: It started again no problem after charging the battery but the service indicator now says the B...

Hi guys, long time no see! I'm servicing a friend's C220CDi on wednesday, and I was wondering if one of our indies (or a member with some experience) can tell me how to reset the service indicator without the aid of a computer. Often, a bit of jiggery-pokery with the trip counter reset...