Installing Powerflex Subframe Bushings into the E39 Touring: E39 M5 Wagon Build Pt 2

In today's video, we take a look at the difference between Touring and Sedan rear subframes on the E39 chassis, discuss how to upgrade to M5 components, and how to replace subframe bushings!
www.thebimmerb...
Powerflex Rear Subframe Bushings for Touring (Order 2):
www.powerflexu...
Powerflex Rear Subframe Bushings For Sedan:
Front: www.powerflexu...
Rear: www.powerflexu...
Intro: 0:00
How to remove old bushings: 1:23
Installing the Powerflex Bushings: 5:48
Differences between non-M and M5 Subframe: 8:42
Non-M vs M5 Differential, Axles, Brakes: 11:03

[@bauerjack1978]

Did you notice and downsides like more road noise or like the yellow ones making bumps in road more banging in the car over standard bmw bushes

[@jordanbaisas5959]

Great work man!

[@TheBimmerBarn]

Thanks Jordan!

[@2ndProtects1st]

You got like just because Jed is awesome.

[@540idioT]

any update on if you like or dislike the polyurethane bushings?

[@TheBimmerBarn]

Yes! Just finished a 1600 mile road trip on the car, combined with daily driving the past couple months, and I can say that these are very comfy, but solid! Rear end is predictable, doesnt bring in a ton of NVH or anything. It slightly amplifies the clunk from having old original axles, but that noise was there before, a sign that they need to be replaced. 10/10 would install again.

[@BMWM5E39]

I regret putting polyurthane subframe bushings. The rear feels planted with polyurethane everywhere front & back, but the hardness sends sounds and shocks excessively into the frame. The diff has a whine at 90mph+, now at 180,000 miles, and that whine is now prominent because the sound is going through the frame. All polyurethane is cool in Germany, but in USA, Eastern Europe I would put back rubber subframe bushings to maintain the solid feel/comfort that M5 E39 has.

[@TheBimmerBarn]

Thank you for sharing, if this is true I may end up going back as well... I am installing some sound deadening material on the chassis to hopefully make it overall quieter inside, maybe this will help.

[@BMWM5E39]

@@TheBimmerBarn onre more thing: once I put in the poly subframe bushings, I took the car out of the shop for a spin and drove it straight back, I had strong "clunk" noise when shifting. Turns out the rear axles and drive shaft bearings were getting super slight play in them, while still functional that slight play once shifting gears sent metal 'clunk' sounds through the chassis with no rubber to absorb, that made it feel like I am driving old loose tractor. I ended up replacing rear axles and drive shaft cv joints and now it's tolerable with poly rear. These clunks were not prominent with all rubber rear frame.

[@Borgschulze]

@@BMWM5E39 Good info, I will order OEM rubber bushings, BMW designed a great car with the E39, I would like to keep it that way.

[@vosedon]

​@@BMWM5E39 after reading this would you consider going with OEM bushings with powerflex inserts? Or just stick with OEM bushing alone?

[@plingvaldsen]

@@TheBimmerBarn oem/lemførder bushings are oil filled, thats why every other solution doesent work

[@Randyrene305]

How long would a job like this take? And is the process for the subframe removal difficult?

[@drewdavis239]

M5 rear sway bar fits too fwiw. Also, if you go m5 rear brakes, stop tec rear stainless lines fit fine with the touring suspention (missing the strait barb thats comes off the caliper)

[@jasonschreiber6458]

It's too bad you can not rent the tool from jed anymore. I built a tool with 3 pieces of angle iron and a 1/2" threaded rod. Super simple and effective. I posted pictures of my tool in the "rent the e39 subframe tool. " same jedi m5 thread that you rented yours from .

[@TheBimmerBarn]

Wow, thanks for the update! Maybe I'll have to look into building one of my own

[@ShutUpAndDriveIt]

YASSSSS

[@TheCraveFeeds]

Is it possible if any of those bushings/ball joint bushings could be cold welded? cant seem to get my rear ball joints out

[@TheBimmerBarn]

I'm not sure! If you're having a lot of trouble, bring the control arm to a local mechanic shop who has a hydraulic press, and they can pop em out for you. Good luck :)

[@sportflx4304]

did you go to school/program to learn all of this ?

[@TheBimmerBarn]

Nope, self taught with years of being surrounded by BMW's and cars. But always learning something new!

[@RedSport555]

I bought a 525i touring for dirt cheap might have a blown head I would like to attempt to fix it myself but I have no experience, do you think it’s worth trying myself or I shouldn’t even attempt the repair

[@TheBimmerBarn]

@@RedSport555 You'll need a good tool set, the timing tools for the camshafts, and a lot of patience. Might be better to have a shop do it, or swap in a new (used) motor!

[@mrdebonair7738]

Where can i find the bushing for a sedan .

[@TheBimmerBarn]

Just go to Powerflex's website and enter your car, it'll give you all the bushings available: powerflexusa.com

[@alexcaicedo970]

Would like to see videos noise deafening

[@TheBimmerBarn]

Check out my video where we installed carpets in the M5 wagon, I did sound deadening at the same time! Now just need to add some to the trunk and spare tire well for the full effect. It does make a difference!