Maybe it means A-H service is needed, as in A through H...Do you have the records on the car so you can check what the last service was? If not, you can look at your maintenance booklet to see what is needed. I only have one for the w211 chassis. You did not specify what type of Mercedes you have.

 

Mine asks the same. AH service its a 2010 W204 st ca.r ill like to know
what that mens regarding to service

 

Welcome to BW Esben Lyn,

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see attached.
What each Service A-H actually means

 

I have s class 350 d 2016 same I got service AH I don't know what that means, I do full service change oil, oil filter , everything still showing me service AH overdue by 6 days!!

 

Welcome to the forum Rebar kader,

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