Tom in Austin

My car's displaying "B9 service due in 25 days" .... I know what the "B" service consists of, but cannot find "B9" in any websearch or the manual. Does the 9 have any particular meaning?

Also, curious, the book says B service comes at 20K miles, and I just turned 15K. Does the computer have some kind of smarts to detect that my driving pattern requires service earlier than the stated mileage?

alecmascot

https://forums.mbclub.co.uk/threads/.../#post-2654061

C300CA

My 2011 service reminder counts the date not the driven mileage. I believe in the owners manual of most manufacturers it says time or miles whichever comes first.