SL/R230: Compressor belt SL55 AMG ,Brabus orginal tunet say change belt every 6250 miles




Weistec or others , i have not heard any or seen any at what miles they recommend change the belt
OIL USE , how mutch oil use your guys engine?
i have filled 1 q after oil change and have 5500 miles after that , driving hard alot, mutch rpm . not filled oil anymore . car has now total 25 000 something


