Bad vibration
Thanks for any advice in advance, I am not a car person so some of my ideas or questions might sound too basic and sorry for my bad English 😜
This new gen Tiguan has been running smooth since I got it last June. The bad vibration started after I changed to my winter tires, though I am not saying the winter tires is the cause because I don't think the issue came right after the tire change, also the issue is still here after I changed back to the all season tires.
I don't know if vibration is a good word for it. It feels alright at low speed but at mid speed (I would say above 40) it hops pretty hard. It feels just like when I was little, riding bike into a wall turns the tire into that oval ish shape, and if you keep riding, you hop up and down. It feels exactly like that, just not that hard but still annoying. I tried driving on a very smooth and flat road that‘s just surfaced, still hopped. I don't know if it amplifies the road unevenness or the car itself is bouncing because of rim or tire issue. At high speed, the hop isn't as hard, but it's a finer and more frequent shaking.
I first thought it was the tire problem, I went to Fountain Tire and described how I felt. They can't really identify what's wrong from the description, but they believed doing a balance first would rule out some problems. It actually felt a little better after the balance. Before the balancing the shaking was so bad even the steering wheel constantly shook. Now the car doesn't shake as badly but the issue is still there. I am guessing it's a mechanical issue instead of a tire one?
Now my concern is that I don't know the cause of the issue and I don't know what to do.
- Do I just take my car to a tire shop or is the dealership better (I'm assuming if it is a vw problem then the dealership might be better at it?).
- Is it going to take multiple tests before we know the cause? That's going to cost a lot right? Or it doesn't sound like a too mysterious issue to those of you who know cars?
I wondered if it was me being paranoid, so I invited my friend to test drive it (he was with me the day I picked up my car last June), he confirms it's different from back then, and it does vibrate now.