View Single Post
      09-11-2017, 02:11 PM   #51
Doctor///M
Brigadier General
Doctor///M's Avatar
United_States
1792
Rep
4,216
Posts

Drives: 2023 AUDI RS6
Join Date: Feb 2012
Location: USA

iTrader: (14)

Garage List
2023 Audi RS6 Avant  [0.00]
BMW M2 Competition   [10.00]
2009 BMW 335i  [0.00]
2015 M3  [9.52]
Quote:
Originally Posted by jandref321 View Post
I think your installer was being lazy. The X5M is only rear air ride, but regardless of whether or not you have coil springs or air springs you have a separated damper in the rear. In the front you have a combined spring/strut but in the rear it's a spring by itself and then a damper(strut) by itself. On both the front and the rear the bump stop prevents complete compression of the damper(aka strut). The DINAN kit has front coil springs and rear links to adjust the air spring height. It's easy to install the front bump stops when installing the spring because it all comes apart, but the rear you only need a 10mm wrench to install the links. To install the rear bump stops you have to take apart the whole trunk/storage area to unbolt the dampers, unbolt from the lower control arm underneath, pull them out from the bottom, and install the new bump stops. The installer probably didn't want to go through the hassle and called it a day.

Here is the rear Damper with the bump stop highlighted:
[img]https://farm5.staticflickr.com/4435/...3d5f54149b.jpg[/img]
That would make sense and thanks for the info. No wonder the experienced folks recommend going with a coilover setup since it requires the same amount of labor for a more customizable experience. Good to know!
__________________
2020 F87 M2 Competition /l\ LBB /i\ Executive Package
2013 E70 X5M /l\ Space Grey /i\ Full Silverstone Leather /l\ LED Headlights /i\ Comfort Access /l\ HUD /i\ Ventilated Seats /l\ 22" BBS SV
BMW CCA Member
Appreciate 0