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Acoustic Comfort Package....My only disappointment

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Acoustic Comfort Package....My only disappointment

 
Old 05-15-2018, 08:25 AM
  #26  
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Originally Posted by drrobertjfrank View Post
Wow... My 1996 S500 sedan, at 70 mph on busy expressway driving tops at 62-75dB! In city driving (45 mph normal Dallas roads, which are not quiet) I get down to 52 dB in traffic. In the garage at idle: 33 dB. (I am a professor of electronic music, and teach acoustics).

I have been considering the new E class with the acoustic package, but those levels suck!!!! (Pardon my French) I think if someone is considering the acoustic package, then any MENTION of "exhaust note" is irrelevant. I don't want to hear a BIT of noise, from car or engine or road!80-90 dB is outrageous for a Benz with "acoustic package"! Even an AMG (which my son owns C63)

Thanks for the info...
I have had the ACP package in my previous 2017 E300. I would say that on smooth roads that the car was almost vault--like in quietness from wind noise and other vehicles. However, the road noise from rough pavements was very loud to the point that I thought that there was something amiss. The dealer blamed the RFT tires, but the inflation psi was only 33. This was with 245/r40 tires. With my E63S I changed out the Pirrelli's to Michelin PS4s to quiet things down. I was measuring 85db on rough pavements before the change out. Things are now 78db on the same road. Smooth pavement is also improved. This is all without having an ACP package installed. The package is good for wind noise reduction, but the car is quiet without any additional insulation. I live in NC and I didn't find the IR shading to be of much value for interior temps in the E300. My other observation is that my previous E550 was much quieter on rough pavements.
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Old 05-15-2018, 08:37 AM
  #27  
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I don't have ACP, but part of me wishes I did. I drove on a lot of concrete (read: noisy) roads, and the car is loud - specifically the tire noise is excessive. I do like that I can hear the exhaust note, but this isn't a car I'd take on a cross-country road trip. I'll take the serenity of our Japanese SUV for that type of journey - it's more comfortable, smoother and quieter.
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Old 05-15-2018, 08:51 AM
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Can anyone who has ACP comment on tinting the windows? Did you "double up" and use ceramic? Any words of wisdom?

For me it would be partially cosmetic (consistency front and back) and partially for the UV protection/keep black interior cool.
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Old 05-15-2018, 11:35 AM
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Are the thermal membranes (aka clear tint) on the front and rear windscreens?
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Old 05-15-2018, 11:40 AM
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Originally Posted by abokor View Post
Can anyone who has ACP comment on tinting the windows? Did you "double up" and use ceramic? Any words of wisdom?

For me it would be partially cosmetic (consistency front and back) and partially for the UV protection/keep black interior cool.
My ED1 has the ACP.

I used ceramic because its just what I use on all my cars...30% My interior is black too.




Last edited by Vic55; 05-15-2018 at 11:42 AM.
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Old 05-15-2018, 06:20 PM
  #31  
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I don't know where the OP lives and whether warmer temps have changed road noise with tire compound becoming softer but my interior noise is no where near that loud and I don't have the ACP. I'm running 41/36 front/rear also (Spec from european chart for the load I'm using). My wife, who drives a facelifted '18 Range Rover full size with the double pane glass, even commented on how surprisingly quiet it was on the drive home from the dealer. Odd.
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Old 05-15-2018, 08:17 PM
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I have ACP on my wagon and I actually hear the performance exhaust more windows up than down.
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Old 05-15-2018, 10:23 PM
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I notice my car is quieter on most of the New England roads rather than Florida as here it seems like less of that rough style pavement than florida although the roads are smoother in Florida with less cracks and potholes, I'd almost rather take some cracks etc as it is nice not getting all that road noise. Either way it's not much of a factor as driving the car is so great.
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Old 06-01-2018, 10:28 AM
  #34  
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Finally reached 1000 miles on my E63S and put it in sport+ mode this morning on my drive to work. I have the acoustic comfort package and I think it mutes the exhaust note too much. I can barely hear it which is a shame. If my radio is on, then I can't hear it at all (I do have the upgraded 3d surround so that might be a little richer than the standard system). My C43 was much louder in the cabin on sport+. I guess the ACP is doing its job in this executive car and I'm sure it's plenty loud outside.

If you like exhaust note, probably not a good idea to get this package.
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Old 06-01-2018, 10:42 AM
  #35  
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If you're just bumbling down the highway in Sport+ mode it is fairly quiet. But if you put your foot in it, the noise does pick up nicely.

When winding up a nice mountain road in a spirited manor the exhaust note comes through nicely - but not too loud. You can also increase the level of exhaust noise in the cabin a little by dropping the rear center seat.

Having had some cars in the past with really loud exhaust I can say that after a while the continuous exhaust drone gets tiring.

I think Mercedes did a nice job of balancing things. I can carry on conversations with my passengers without shouting, or take a conference call in the car without outside noise coming through while driving sedately along. But when you put your foot in it the exhaust level does increase a fair bit.

And, after all, this is a luxury sport sedan, not Mustang or Hellcat.
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Old 06-01-2018, 11:08 AM
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It seems like most of the noise comes through the fender wells. I doubt many of you guys plan on putting this on 120+k cars, but spraying "Lizard Skin" or a similar product in the outside of your plastic wheel well liners would probably help with the road noise.

When I worked in the car business, we would have customers put this on their lifted trucks to help with tire noise.

Here is a review link:
https://m.youtube.com/watch?v=nGi4vLGpUgI
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Old 06-01-2018, 11:42 AM
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Originally Posted by HTXgearhead View Post
It seems like most of the noise comes through the fender wells. I doubt many of you guys plan on putting this on 120+k cars, but spraying "Lizard Skin" or a similar product in the outside of your plastic wheel well liners would probably help with the road noise.

When I worked in the car business, we would have customers put this on their lifted trucks to help with tire noise.

Here is a review link:
https://m.youtube.com/watch?v=nGi4vLGpUgI
May actually not be a bad idea if you take the fender liners out first, coat them then reinstall
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Old 06-01-2018, 11:51 AM
  #38  
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So earlier in this thread I compared my car with the ACP to one without (driven on different days, different roads, different speeds) and felt there was a difference. A few days ago I drove my car and a friends without the ACP back to back (within minutes of each drive). I took the same exact route and drove relatively close in regards to rpms, speed, over the routes with several WOT sessions. A while sound, tone, noise, etc is very subjective- I really had a tougher time discerning the difference. This was my experience and I tried to make the measurment as consistent as possible vs driving one car one day and the other at a later time on a different route.
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Old 08-20-2018, 09:13 AM
  #39  
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What is the package code number for the ACP?
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Old 08-20-2018, 09:26 AM
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Originally Posted by superangrypenguin View Post
What is the package code number for the ACP?
PAF
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Old 08-22-2018, 07:45 PM
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ACP makes a good difference on a E300 or E400 but not much on E63. Also keep in mind that E-class is developed in Europe were all the roads are asphalt compared with concrete in US.
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Old 08-22-2018, 08:44 PM
  #42  
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Really? The autobahn seemed like concrete to me.
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Old 08-26-2018, 11:05 PM
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Usually they are in asphalt but there are many roads in concrete also
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Old 09-21-2018, 03:21 PM
  #44  
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Anyone know if ACP is standard in Canada on the E63S Wagon? Itís not an option.
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Old 09-21-2018, 07:06 PM
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Originally Posted by Surge View Post
Anyone know if ACP is standard in Canada on the E63S Wagon? Itís not an option.
I have it on my wagon and I think it does the job just right, maybe it's now standard as it should be..
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Old 09-21-2018, 08:49 PM
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Originally Posted by HBerman View Post
I have had the ACP package in my previous 2017 E300. I would say that on smooth roads that the car was almost vault--like in quietness from wind noise and other vehicles. However, the road noise from rough pavements was very loud to the point that I thought that there was something amiss. The dealer blamed the RFT tires, but the inflation psi was only 33. This was with 245/r40 tires. With my E63S I changed out the Pirrelli's to Michelin PS4s to quiet things down. I was measuring 85db on rough pavements before the change out. Things are now 78db on the same road. Smooth pavement is also improved. This is all without having an ACP package installed. The package is good for wind noise reduction, but the car is quiet without any additional insulation. I live in NC and I didn't find the IR shading to be of much value for interior temps in the E300. My other observation is that my previous E550 was much quieter on rough pavements.
My car came with mMichelin and the ACP, package and it seems quiet. In the E400 loaner you didnít get as much engine noise but you heard other cars more (no ACP)
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