tyre sizes

[bembo449]

my W211 has a set of 19" rims on it which i believe came from an SL , although i like them i'm looking at going down to 18" rims , what are the correct tyre size for 18's ?

 

[Naraic]

Read the bible:

http://www.alloywheelsdirect.net/information/fitting_chart/mercedes-benz

 

[bembo449]

i'll give the bible a miss but that link was usefull ! lol