Well IMHO you have a perfect storm...A-minor wrote: ↑Mon May 13, 2019 7:12 pm Having had my E89 for a couple of months now I have to admit the ride is not quite as forgiving as I was hoping for. It seemed a little firm on the test drive before buying, and on good quality roads I have no issues with it. However, there seem to be plenty of 'bumpy' roads in this part of the country and on longer drives it does become a bit tiresome. I've already removed the runflats, and whilst that has taken the harsh crashy edge off the bumps, it didn't make the overall difference I was hoping for.
Now perhaps I'm just getting too old for this sports car malarky, but before arriving at that conclusion I'm considering whether at 113k miles some of the suspension parts are worn and need renewing. Could worn shocks could be give a harsh ride? It's seems counter intuitive but I wonder if an underdamped car results in a 'bouncier' ride, i.e. bumps are felt due to shocks allowing more vertical movement.
Another thought is that I noticed the rear springs were changed at an indie around 18 months ago. The cost was £95 per side including fitting; at that price I'm wondering if they were cheap non-original springs that have affected the ride. The car does look slightly lower at the back, perhaps they were cheap lowering springs? If anyone could help rule this out I'd be grateful, I've measured a vertical distance of 352mm from wheel centre to underside of arch, if anyone can give me a comparison measurement on their car it would be appreciated.
If you have not had the shock absorbers replaced than at 115k miles they will be unbelievably shot...
Somebody putting lowered springs with a higher spring rate to compensate will severely compound the problems.
The money spent would not have paid for new shocks...
So I suggest you need new shocks at a minimum...ideally you would do the springs and shocks as a matched exercise..
At least what you could do is go for Bilstein B8 shocks which are matched to reduced height springs..
I replaced my shocks at 40k miles and there was a dramatic difference...
For comfort B6 and OEM length springs would give you the most comfort...
What wheels/tyres are you running?