I have a 2017 Q50 RS (RWD) too. I've had it new and it's at 3500 miles. I haven't experienced any vibrations/shaking like how you have described.

It could be a shot motor mount (total guess). But the car is still relatively new, so its motor mount shouldn't already be shot.

Do you know of the car's pre-7100-mile history?

Post a vid with those symptoms and maybe somebody else could chime in better than me.

 

I asked the salesperson the day I bought it if they had maintenance records and they claimed they did but never got to show me the proof & im still hassling the dealership about it. I'd be pretty concerned if maintenance was never done on it. Its hard for the shaking/vibration to translate onto video as it cant really be heard but mostly felt. Ill make another appointment with a different dealership and see what they conclude about the situation. I figured it was abnormal but they claimed no codes so it should be "fine"

 

To my knowledge, there shouldn't really be any maintenance records for a 7,100 mileage Q50 RS because the first maintenance item should be at 10,000 miles for its first oil change.

Let us know what the other dealership's diagnostic is.

 

Does the wife dig the vibrations?? Might be worthy to keep it as is... Ahem.

 

Mine, at 20k miles has no vibration. Your dealer is FOS. Get a car fax report and see if it has been in an accident.

 

something is amiss, it should not vibrate. Mine's >10k miles already and smooth as butter.

 

Ya, I'll pull back on the silly comment and state that mine doesn't vibrate in any way that would lead me to believe it's not within the normal realm of operational spectrum. It hums, periodically; and even drones a touch now and then, and sometimes my keys need reseating in the drink cup holders as they jangle/vibrate, but as far as the car physically vibrating - noticeably - no. Not at all.

But about yer wife....

 

I have a full straight pipe cat back exhaust and even my car does not vibrate in the way you are describing. I have 10,200 miles on my 2016 RS. Just did the first oil change, 0 issues so far aside from the GD passenger seat rattle issue that they still have no fix for.

 

I took mine in for the seat rattle. Dealer just re-bolted the seat.Didn't fix it.Plus the rental they gave me 2017 silver sport,did exactly the same thing. So I have some old winter gloves, stuffed 1 1\2 inch thick foam board inside each of the gloves and wedged 1on the left side at the seat and center council and 1 at the left back of seat wedged between left side and center council. Rattle 95% gone! The gloves with the foam in them you don't really notice them because there wedged pretty far down.

 

Hello,

I have a 2016 Q50 SS and I sometimes experience engine vibration/shaking when I stop at red lights. Have you figured what was wrong with your car?

 

Hopefully someone else will chime in here. Jairon95 hasn't posted here for 2 years. I'm thinking engine mounts may be your problem.

 

My 3.5 also had vibration @50k miles, was a faulty injector...