When going over bumps in the road, are you regularly hearing a thud from the suspension. Not metal to metal just a noise from the suspension.
I used to hear this noise when I had VW/AUDI and the strut bearings were going bad.
GT2 AWD 2,500 miles
Every GT2 RWD I test drive does this (I’ve never driven the other models).
You can clearly *hear* the front and rear suspensions working as they go over bumps in these cars. In the front there is a subtle bumping (not exactly a clunk/thunk/thud, but definitely audible) sound as you go over pavement irregularities. In the rear, there is a bit of resonance in the cabin/body, best described as boom, as the wheels go over irregularities.
Most find it unobjectionable or not noticeable. Maybe some ears are more sensitive to it than others.
I think the sound is coming from rather stiff front and rear strut mounts.
My F10 535i did the same thing, but just at the rear. After driving multiple similar 535i, I found that most rode without excess suspension noise, but all of the ones with the Adaptive Electronic Suspension had the extra sound.
A little checking revealed that Adaptive and regular suspension 535i each received their own unique strut mounts.
One set for the Adaptive Suspension and another set of mounts for the regular suspensions.
I swapped my Adaptive mounts for those of the regular suspension and the extra sounds went away.
Which brings me to the Stinger...
Again, the Regular and Adaptive Suspension have different mounts.
I also note that the Stinger Electronic Suspension System seems to use the same supplier/design as the BMW system. The only notable difference being that the Stinger lacks the ability to adjust compression damping, while the Bimmers could adjust compression and rebound at each shock. Moving on... It seems that the adjustable suspension seems to insinuate the use of stiffer mounts than the base suspension for some reason. Stiffer mounts do usually increase noise/vibration/harshness.
I still need to make time to drive a regular suspension Stinger and a
G70 with and without ECS too.
After I do, I’ll be able to tell you if the mounts are the culprit responsible for some of the increased road/suspension noise that the GT2 has. But that’s assuming the passive suspension doesn’t make the same noise.
There’s another issue too... Have you ever noticed how vocal the Stinger GT exhaust is on the inside, while being quite subdued on the outside? Lots of people think that sound they hear from the rear is simulated/electronic... In my experience, the fake sound is more intake than exhaust, and seems focused on the front speakers. That exhaust sound from the rear is real. And it is able to come through loud and clear because of a severe lack of sound insulation/deadening mAterials in the trunk. Too add insult to injury, we have a hatch with no separated trunk, so the sounds from back there come through even clearer still. That’s good when it comes to exhaust sound, but horrible as pertains to road noise and NVH isolation. I also find the trunk floor metal to be kinda thin too.
I plan to add some dynomat back there and will report back if it’s worth it.
No road noise can compete with that (well, I hasten to make the exception of rough concrete highways at speed: then you must, absolutely, resort of heavy bass, LOUD techno in order to drown that out!
