W205 - B1 Service

[JM04ROE]

First time car has flagged up a service message.
"B1 Service due in 9 days".

What does B1 mean?
Struggling to find a list of what items are actually due to be performed for this service.

Help would be most appreciated.

 

[Abcan]

Put the car details into the ESS and it will tell you what’s required.

Mercedes-Benz UK | Electronic Service Sheet

 

[BlackC55]

B1 is a B service + brake fluid change