Hey, in February 2018 I took over a used fortwo 453 from 01/2017 71hp, before delivery the service A was carried out at the time 2400Km. This received in June 2018 a new steering and an engine-date on warranty. The smart warranty ended on 01/2019 from then there is the warranty extension of the car-guarantee until 01/2020. To maintain this warranty the car-guarantee requires the annual service. As a trained car-ler I take over all the necessary work on our vehicles He currently has 6800km on the clock. Now, interior filters, engine air filters and engine oil would have to be changed, which could be done easily by himself. I received the cheapest service price from a small workshop with 189 € for the so-called Service B. Now please tell me what is really done for this money, which works have to be done at this mileage absolutely ?? Have already done is thinking about doing this myself and letting it happen, or is that not recommended from your point of view? By the end of the year I will perhaps drive 1500km, what serious damage could be expected by then, where are the weak points that I absolutely have to consider? Would be grateful for your advice.