My 93 300E was Starmarked in 1997, and the engine wiring harness wasn't replaced during the billion point inspection.
It went out at 107,000 miles, and the dealer replaced it as a goodwill warranty. The car was purchased there and all of the maintenance was done there.
It still begs the question why they didn't do it in the first place...
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".