I have a problem with my new Opel Adam (3 months old).
I changed the rims it came with (16") 4 days after I purchased the car. Instead of the 16" rims I bought 17 inch rims. However the car ride was the same for approximately 2 months, smooth even when driving in roads with many bumps and holes. However recently I have been feeling that the car is bouncy and sometimes I feel like i'm going side to side. This is felt only in the seat driver/passenger not in the steering. Steering does not shake or vibrate. I just feel that the ride is not smooth as it used to be, especially when driving in slow speeds ex 30 kph at higher speeds its not that noticeable.
Also noticed that when braking the car seems to take time to settle and in the drivers seat you feel like going sideways.
I went to the service center and the guys said that it's because of the 17 inch rims, he felt what I was feeling when driving the car. He said we should test if this is felt using 16 inch rims. However, I don't believe that this is the issue as I did not feel this in the first 2 months of the car.
Others told me that the tires I have are very hard and not that good. Change all 4 tires to Continental, still feeling the bouncy/sway feeling when driving however its reduced a bit after changing the tires.
Can I check something else? Why does a brand new car feel this why while driving?