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Old 11-07-2020, 08:41 AM
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Join Date: Jul 2014
Location: Ooltewah, TN
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Interesting find about OEM struts / shocks difference between 4.6is and 3.0

When I did full suspension refresh on 4.6is 6 years ago:
https://xoutpost.com/bmw-sav-forums/...gs-delete.html
I found the OEM Delphi struts and shocks to be somewhat worn at 106k miles.
I guess nothing surprising there as the weight of the X5 and the 20" wheels are not exactly friends to the suspension.
Well, I just finished replacing the caliper guide bolts and rubber groomets on the rear of the 3.0 and and to my surprise I've realized that OEM struts and shocks are made by Bilstein.
Now, I don't know if Bilstein only came on 3.0 Sport Package but I'm big fan of Bilstein so I'm pleased.

Side note:

I've always argued that you're not suppose to lubricate guide pins and here is the proof:
I've had left rear brake sticking lately on 3.0 and when checked with digital thermometer it was 520 F at some point while others were in low 100 F +.
I've removed the caliper last night and found guide pin stuck in bunch of grease inside the boot. Sure, coroded pin didn't help and maybe less grease would be fine but I never use any and never had this issue before.
I've checked everything because i though wheel bearing would be shot with that kind of temperature but it seems it was only for short period of time.
New guide bolts and rubber groomets and no more sticking brake:

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