Hello everyone.
Quiet reader here in Portugal.
Bought a used Smart,18,600kms very well cared for.
Have just completed my 2nd oil change 453 Cabrio turbo 2019. 31,000 kms
Standard practice. NEW copper compression ring each time. ( seam up, ie onto sump )
50Nm was fine ( but nothing more )
Using Shell Helix Ultra 5W-40. Very happy.
4.3 Lts drain level and I prefer warm.
Has never used even a drop of oil.
Oil filter to 25NM, but plastic and was happy with 20Nm.
Lube the rubber ring and be sure to remove the old one.
Fun car to drive, City and Expressway. Very capable little car.
Thanks for all the tips from this site.
Obrigado.