This thread is about oil filters for the 453, however this week I was at Smart Gainesville and picked up more oil filter, and picked up engine air filters and cabin filters also. The engine air filter is Smart part # 281-094-00-00, cost me 15.50 and tax each. The cabin filters are Smart part # 453-835-03-00 and they were (ouch) 35.50 each.
I had them give me a print out on oil drain plug and oil filter torques and as previously stated on this thread they are 50fp and 25fp respectively.
The MB engine designation code is 281.910