Has anyone here when applying Dynamat Extreme removed the factory fabric soft NVH matting on a panel to then apply the Dynamat..


ie an already soundprooofed section, using the beter ?Dynamat..


This will be for rear wheel arches, under bench seat, truck floor etc.. S205


In these area's there are existing measures but they are questionable in their effectiveness..


Thanks in advance for anyone with direct experience on this..


i may even remove the fabric matting, out oon the dynamat and stick the fabric on top where it fits etc..

 

I'd be interested to hear about this also as I note the rear a little noisier than the front but then you'd expect that given you sit right over the rear wheels in the back.

 

In conjunction with upgrading the audio I had the shop Hushmat all four door interior panels. I had the entire car tinted (not sure it made an impact, but is is another layer of material on top of the factory double pane acoustic glass), and I switched to Michelin Pilot Super Sport tires. Combined the result is that the car has less road noise. That plus the improved audio makes for a nice cabin feel, similar to my old 220 and 221 S Class.

 

It's your bloody tyres Mike !!
Quit it will you.. I don't have 1500bucks for tyres tight now

I'm ordering the dynamat though...

My dealership is going to free issue me a bunch of spare clips in case of breakages... For door cards..

I'll be adding felt adhesive along door cards led strips, silicone sealant if necessary, dynamat to the usual surface and the factory NVH pads on top where possible... Spray adhesive..

I'll do pics it'll be end June...

 

Ha. Not only did I put out a grand for the Michelins, first I screwed up and bought a set of BF Goodrich Comp TA2 two weeks before and then decided I hated how they looked, and pulled them off.

 

Mike - are the Michelins really that quiet? I put a set of Pilot SS tires on my old LS430. . . for a week. They sounded like a UPS truck. I pulled them off (thank you NTB for your satisfaction guarantee) and went with Dunlop SP5000's, and quiet once again reigned supreme.


This was 5 or 6 years ago. Maybe Michelin changed the tread pattern to make it quieter? (Thinking ahead for when my OEM Conti's wear out. . . )

 

Yeah, I've had good luck with MPSS on my prior S Classes so they're my go-to tire, but whatever works.

 

I'm waiting for my tires to go to upgrade also. If I could suggest another. I normally run continental dw and love the grip and how quiet it is. I've had three sets on the bmw and have been happy since. Rated similar to mpss also.

 

OK so I have installed the dynamat .

6 sheets a cross the rear door, S205 remember, here I t was on the inside of the other skin where access holes existed, onto the plastic trim panels upper and lower, the middle one is covered in soft fabric sound mat...
Also added adhesive foam to the body adjacent to the trim panels to prevent rattles.... Result... It all sounds much more solid... Previously moveable panels are now solid... And the outer skin Has lost some drumming...

In the back, removed rear side trims, rear door lip panel lower, boot floor front and rear panels, liner, plastic support trims, EPS foam infill bar, removed the burmester amp assembly and all soft foam blocks... Covered almost every available surface.... Replaced all foam blocks and panels... More could be added behind the side panels but I question any further value.... Biggest difference here seems to be the plastic boot floor, but the whole area is just solid sounding now.. Before it was tinny and drummy (are those even words??)

Last spot was under HR rear seat bench and rear susp. Towers... Bench lower and side bolsters removed.. Again everything covered (acknowledge a sheet covers the fuel cell pump access panel here, I accept the sheet will be cut IF in my ownership access is needed..for now don't care...)
Again this one was noticeable.. Especially around the tank access port area and rear towers...

All in and combined there is a clear and noticeable improvement to exhaust, road noise and tyre noise in the back of the car... And that's with magnaflow straight through mufflers...

Schedule a day to do this, I was 6 hours start to finish....

The doors will be next, but it's in for its first service and a load of correction work this week...

Oh and the door squeak fixed work a treat... Highly recommended....

 

You're certainly treating this like a keeper..

 

Well I am in it 2hrs a day most days..
And I will have it another 2 year at least...
I took some dB readings before the mod, I'll take some afters when it returns from the dealers...

I did notice in the c200 loan car that it was quite smooth and tight as a drum.. The door cards are night and day different... Rock solid... So clearly early ones were ****....

Only change for me would be IF a CLA45 shooting brake with an all new interior comes out.... I'd have the current one but the interior is woeful...

 

Hi Shadwell, just wondering if you have an update? Did you manage to do the doors yet with dynamat etc? pics? reported difference?

 

Whoa 1500...

Tirerack has all 4 tires for less than 900 bucks..

 

Australia mate.....

 

Haven't yet had the opportunity to do the doors..
I did the b pillars... Small improvement around the head.. A few decent appetures in there to cover too.. Shoved some foam in also...

And I wet sanded and fully corrected,polished and jewelled the whole car.. Which took an age.. 50hrs.. Came up good though...

It was back at the dealers with more faults on the stereo camera assy too...

Every addition is a small improvement though... So I don't expect a major change from now... I have 2 sheet left so likely will apply to rear of door skin as I don't have enough left to later in the outer skin and the plastic inner skin...

 

Hey mate, I know what you mean. I've pulled off the A/B/C Pillars and a lot more on 205. Did you use hydrophobic melamine foam? What adhesive did you use for the foam?

Did you place dynamat in the B Pillar? If so, may I ask why? I wasn't expecting to need a vibration dampener in that area?

I'm looking at using CLD Tiles + MLV sheet + CCF + hydrophobic melamine foam. I just don't want to dampen too much, need to hear the C63

Mainly want to focus on doors + B Pillar + maybe floors/rear seats.

 

All the best..

 

Hey Shadwell, I'm looking to do this for my car as well. I was just wondering if you had any more pictures?

I want to apply dynamat on all doors and what you did on the rear trunk and bench as well.

Could you send me more info in detail about the work done on your car to make it quieter and ride smoother AND get rid of the rattles??

Please sir, I'm trying to perfect the car to my standards.