Mercedes benz fixed an accident from rear tire whole rear was change cost of 14k after that car does not go over the bumps like it's absorbing instead there is a sports car like hit to vehicles cabin I took it back to Mercedes and they said it's normal but I know it didn't drive like this before and I don't have the sport comfort settings I m stuck I hate
My car now don't
Kno what to ask them to do help please

Just returned from a long trip in it (over 3 hours).

The car suddenly started showing faults/malfunction for all systems. It has done just 1198 miles. Issue is warranty does not exist in Nigeria where I am.