[voyagergab]

What's Dynamat?
How do you remove the side panels to gain access there?

Thanks very much to doing the legwork on these!! GregoryK

[Poochie]

Originally Posted by akkando

I don't think 51487319479 is on the car. I think there are a bunch of threads already about people adding it back. The other 2 series cars have it though.

@GregoryK

He's right, this door strip was missing on my 2016 235i, I replaced it but I really can't say if it makes a difference but some people claim that it does.. Be warned, it was pricey, I paid $50 for each side... Keep us updated..

http://www.2addicts.com/forums/showthread.php?t=1200964

[GregoryK]

From what I have seen so far is most of the removed insulation is in the back. There is a piece on the firewall that would be impossible to replace (in one piece anyway) without taking the dash apart completely!
I have not played with the doors yet but I notice in the "Body" section of RealOEM that the insulation is shown for the doors. For some reason they do not show it in the "insulation" section. So the doors are likely as "quiet" as the F22.

[GregoryK]

Originally Posted by voyagergab

What's Dynamat?
How do you remove the side panels to gain access there?

Thanks very much to doing the legwork on these!! GregoryK

http://www.dynamat.com/automotive-and-transportation/

I'm not a big user of this stuff. I tend to use a local rubber backed foam product. The stuff I contact cemented in that hole in the pic. If you don't mind spending the money the original part is best to fill that hole. I'm only using Dynamat because I have it and don't want to wait for 2 weeks for the real part.

To remove the side panel out you pull forward both the bolsters (they come off) then pull the panel from the bottom up. It just pops of - pull from the front to the back. You need to remove the "threshold" strips before doing this. They pull up from the front to the back.

[GregoryK]

Back insulation done! You have to detach all the wiring. Then slid the insulation under and clip it back. Took about 4 hours total. I wanted to do it right. Also it was snowing for some of it!

As I said in one of my previous posts the Dynamat over those holes will kill a lot of high frequency noise from the rear. The proper part would likely do a better job as it is more ridged.

[bmwv]

Originally Posted by GregoryK

http://www.dynamat.com/automotive-and-transportation/

I'm not a big user of this stuff. I tend to use a local rubber backed foam product. The stuff I contact cemented in that hole in the pic. If you don't mind spending the money the original part is best to fill that hole. I'm only using Dynamat because I have it and don't want to wait for 2 weeks for the real part.

To remove the side panel out you pull forward both the bolsters (they come off) then pull the panel from the bottom up. It just pops of - pull from the front to the back. You need to remove the "threshold" strips before doing this. They pull up from the front to the back.

Do u know what is the original part number for the thing you made out of dynamat?

[GregoryK]

Originally Posted by bmwv

Do u know what is the original part number for the thing you made out of dynamat?

Clips 12 x 51489119216

Cover L 1x 41007294289

Cover R 1x 41007294290

Part will likely have to come from Germany.

[voyagergab]

Originally Posted by GregoryK

Clips 12 x 51489119216

Cover L 1x 41007294289

Cover R 1x 41007294290

Part will likely have to come from Germany.

What about that cover on the underside of the hood?

[GregoryK]

Originally Posted by voyagergab

What about that cover on the underside of the hood?

You can find these parts yourself on realOEM....

51487221993

Sound insulation, engine compartment

51489119216

Clip for above x 18

[voyagergab]

Originally Posted by GregoryK

You can find these parts yourself on realOEM....

51487221993

Sound insulation, engine compartment

51489119216

Clip for above x 18

Thanks very much. I tried that. Got lost )

[voyagergab]

that black insulation in the back over the wheel arches, is that something you added as well? What's the part numbers for that?

[Poochie]

@GregoryK Hey, seriously, great job! I never seen someone actually added back sound deadening but I understand and respect your decision; if the noise doesn't add to any performance, I find it cacophony (waited since college to use that word, finally)...

The db level, are you going to get a post-reading update to confirm its effectiveness?

[bmwv]

Originally Posted by GregoryK

Clips 12 x 51489119216

Cover L 1x 41007294289

Cover R 1x 41007294290

Part will likely have to come from Germany.

Thanks

Realoem says it is there already.
http://www.realoem.com/bmw/enUS/show...02#41007294289

how do u know what they put there?

[GregoryK]

Originally Posted by bmwv

Thanks

Realoem says it is there already.
http://www.realoem.com/bmw/enUS/show...02#41007294289

how do u know what they put there?

Good point. RealOEM was wrong in my case. I can't imagine that that is something that would get missed during assembly.
I'll contact my dealer and fly it up the flagpole to Germany to find out.

[GregoryK]

Originally Posted by voyagergab

that black insulation in the back over the wheel arches, is that something you added as well? What's the part numbers for that?

Mate. Take a look at my post on page 6 highlights what parts I ordered. As I said early I have not taken the doors off yet but think they already have the insulation that I ordered.

[bmwv]

When are u going to measure the noise?

[mWHO]

Originally Posted by OrangeCrush

Agreed.

The removal of the sound deadening on the 1M is part of what adds to it's awesome character. There is no way in hell I would add it back in...and people wonder why they are making cars so numb nowadays.

Exhaust too loud yes with the music only mildly turned up I loose all my audio sensory as where the engine is at
Too much road noise >>/CadillacForums/Boomers/Floridameetup
Suspension too stiff my god on Alberta's developing nation tier roads this is for the vast majority of driving hours a non issue
My left leg hurts Literally the lightest clutch I've ever felt
Steering too stiff See post above
Seats too stiff My father recovering from a hip surgery, and loyal to domestics praised their happy medium of sport and comfort
Trunk is too small WHAT DO YOU MEAN MY GERMAN COMPACT COUPE DOES NOT MAKE FOR A GOOD HAY BALE HAULER??? (in all seriousness I could likely fit two hockey bags in the boot)
Backseats too small Thijs' & Luuk's necks were in need of surgery in our 30 minute drive to Rotterdam!!

[bmwv]

Originally Posted by mWHO

What is your point and how does the road noise at 80 mph make the car any better when u cant hear the radio or the person next to u?

[pbr]

I have a 2017 PE with the performance exhaust. I bypassed the ASD but didn't see a noticeable change. I then had the trunk rear wheel wells and under back seat insulated. That cut the hwy noise by 30-50% as best I can tell. The exhaust noise at 3000 rpm on the road is not acceptable where before it was annoying.

[GregoryK]

I still have to put the rear seats back. When done I'll do measurements before installing the fender seals.

[GregoryK]

So much quieter to my ears. Still a little disappointing 78.1db down from 82db all @ 120kph (70mph)
The car is 67.db at idle.
I'm using a crappy app to measure these by.
Honestly was hoping for 72 db!
Still have to do the doors and front though.
Stand by for updates.

[voyagergab]

Originally Posted by GregoryK

So much quieter to my ears. Still a little disappointing 78.1db down from 82db all @ 120kph (70mph)
The car is 67.db at idle.
I'm using a crappy app to measure these by.
Honestly was hoping for 72 db!
Still have to do the doors and front though.
Stand by for updates.

Which app are you using? Want to compare.