A month ago I bought a e220 w212 facelift with 100k miles. So, what engine oil do you suggest and what gearbox oil? The previous owner stated that he had the gearbox oil changed but i want to change it my self. Also, when im driving the car on E, it has to go under 1k rpm to downshift or sometimes it delays to change a gear and you may feel a little kick, i dont really like that..I heard for some gearbox updates that can be done and that this gonna disappear, is that true? I dont think that its a gearbox issue because when i drive it on S mode it changes very smoothly and downshifts before 1.2k rpm. Also, sometimes i can hear a noise from the back when the weight of the car goes to the right side, mostly when i exit a roundabout faster that usual, what to check for this?