Yep, Stu Ritter wrote the Mercedes Benz E-class W124 Owner's Bible.
You're lucky to have Stu Ritter local.
The book is available on E-bay, FWIW.
2001 E430, Bourdeaux Red, Oyster interior.
1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".