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    Thread: Road noise. Tires?

    1. Member vwbrvr6's Avatar
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      '11 GTI, '12 VW Passat 2.5 SE,
      07-25-2012 09:34 PM #36
      Well, I have just conducted a very un-scientific study on the cabin noise levels in the Passat. I downloaded a cool free decibel reader app on my Ipad. I compared the decibel readings from my Passat and my Civic at 40, 50, 60, and 70 mph and here are the results.

      MPH Passat Civic
      40 68db 72db
      50 70db 78db
      60 71db 74db
      70 73db 78db

      peak db 86 95

      My only explaniation of why the civic went down at 60mph is that at 50mph there seemed to be a lot of road noise, then at 60 it quieted down and then the wind noise took over at 70.

      Both cars were taken on the same route with the same speeds in the same part of the road.
      The peak decibel reading were on a rough surface of the road.

      The Passat has the continental tires.

      Conclusion, The Passat with the continental tires is very quiet and as the speed increases the elevated noise levels come from wind noise and still remains relatively quiet. The Honda is a soup can on wheels. lol
      VW's from my past.
      1986 Scirocco 16v, 1998 Jetta GLX Vr6, 2002 Passat 1.8t, 2005 Passat 1.8t, 2009 Passat 2.0t.

    2. Member MUG318's Avatar
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      2013 VW Passat TDI SEL, 2010 VW Jetta TDI
      07-26-2012 12:35 PM #37
      Quote Originally Posted by vwbrvr6 View Post
      Well, I have just conducted a very un-scientific study on the cabin noise levels in the Passat. I downloaded a cool free decibel reader app on my Ipad. I compared the decibel readings from my Passat and my Civic at 40, 50, 60, and 70 mph and here are the results.

      MPH Passat Civic
      40 68db 72db
      50 70db 78db
      60 71db 74db
      70 73db 78db

      peak db 86 95

      My only explaniation of why the civic went down at 60mph is that at 50mph there seemed to be a lot of road noise, then at 60 it quieted down and then the wind noise took over at 70.

      Both cars were taken on the same route with the same speeds in the same part of the road.
      The peak decibel reading were on a rough surface of the road.

      The Passat has the continental tires.

      Conclusion, The Passat with the continental tires is very quiet and as the speed increases the elevated noise levels come from wind noise and still remains relatively quiet. The Honda is a soup can on wheels. lol
      It's about time... This is a lot more scientific than what has previously been presented like "It's a lot more noisy than my GMC dualie." I was wondering when someone with a smartphone, or tablet would do this. Now if someone could do the same with a Passat with the infamous Hankook tires we'd be getting somewhere.

    3. Member
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      01 TDI Jetta, 02 TDI Golf
      07-26-2012 02:31 PM #38
      Quote Originally Posted by MUG318 View Post
      It's about time... This is a lot more scientific than what has previously been presented like "It's a lot more noisy than my GMC dualie." I was wondering when someone with a smartphone, or tablet would do this. Now if someone could do the same with a Passat with the infamous Hankook tires we'd be getting somewhere.
      I agree, only issue is the noise from the Hankooks are VERY road surface dependent. When I drive on smooth freshly paved roads... the only thing I hear is the wind over the mirror. On an older road the tires are so noisy that I can hardly hear the radio. I have been driving the same route for 10 years, with my 02 Golf with Conti tires on it. The old Golf, with 262,000 miles on it, from a tire noise persective is much quieter than my Passat with 1400 miles on it on the same roads.
      Last edited by ixlr08; 07-26-2012 at 02:31 PM. Reason: spelling
      Jim

      02 TDI Golf 5M- Black w/Black- RC3+ , PP520, VNT-17, Webasto, 262K miles, 58mpg
      12 TDI Passat SE 6M- Platinum Gray w/Moonrock- 52 mpg

    4. Junior Member
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      12 B7 3.6, 11 Golf TDI, had an 09 TDI, and GTI 03, and GLS
      07-26-2012 02:34 PM #39
      I would make a bet it's the tires, there have been threads before and if you look at tire rack the rating for the Hank. tires are very low for noise.... (meaning bad).

      I wish I would have know before I did buy, but on the road tests, it seem much more quite than the GLI I compared it too... I might call VW just to make a comment and see what happens, but I will probably switch out to contis or good year asymetrics when I get a chance.

      And the observations are true, on some surfaces the Hank. tires are fine, but switch to concrete and it's noisy.

      -b

    5. Junior Member
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      Candy White with Beige Leather 2012 Passat TDI SEL
      07-26-2012 11:24 PM #40
      It helps a lot to use 32 or 33 psi in the all the tires. Much less noise.

    6. n00b
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      2012 Passat 3.6SE
      08-03-2012 02:42 PM #41
      Mine are the infamous Hankook tires...
      Last edited by shadowraya; 08-03-2012 at 02:48 PM.

    7. 08-03-2012 07:22 PM #42
      I have a B7 V6 Passat Wagon here in Australia and they come with Continental ContiSportContact 5 and they are amazingly quiet, much better than the Pirelli P Zero's I had on my R36 Wagon.

    8. Junior Member
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      08-11-2012 06:19 PM #43
      Quote Originally Posted by shredX View Post
      Do any of you feel there is excessive road noise on the highway?
      (not wind noise)

      Seems as though it can be worse depending on the surface. (duh) Comparing the B7 to the wife's Q5 is painful. Heck, even my MKVI GTI was silent compared to this.

      What do you all is a good fix?

      Tires? If so, what would be a good upgrade? The P Zero Neros on the GTI seemed pretty good. I'm new to car tires. Long time Jeeper.

      Dynamat under all carpet?

      Thanks in advance!
      Seems as though if you rotate tires front to back, the tires get noisy. I rotated mine in the old X pattern and they are not as bad. Blocks get pronounced. The more they wear unevenly the worse it will get. Read this on the tire rack. Still does not get rid of the whistling on concrete, but bearable.

    9. Member
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      2012 VW Passat TDI SEL, 2012 VW Touareg TDI Lux
      08-13-2012 11:56 AM #44
      I did a little informal test this morning to measure road noise. Using my sound level meter (weighted to A) I measured road noise at 60 mph, windows up, climate control off, radio off, hand held and pointing slightly upward about 18" from the radio. Rough pavement hovered around 72 dba, fresh asphalt sections of road dropped 10 dba to 60-62 dba. I want to perform the same rest in my Q7 to compare as I have never felt it was loud.
      Current: 2012 Passat TDI SEL / 2012 Touareg TDI Lux
      Past VW: 2005 Touareg 3.2 / 1996 GTI-VR6
      Past Other: 2007 Audi Q7 4.2 / 2007 BMW 328xi / 2006 Porsche Cayenne / 2003 Audi A6 3.0Q / 2001 Audi A4 2.8Q / 1998 Jeep Wrangler Sahara / 1991 Honda Accord EX / 1989 Toyota Supra

    10. 08-13-2012 01:15 PM #45
      Using three different iPad sound level apps and averaging, our month old Passat (with the Contis) measures 60-62 db (A weight) on brand new freeway asphalt, jumps up 7 db on older but still decent freeway.

      There is a stretch of road I want to test on that is really bad pavement.

      Yours
      Vern

    11. 08-13-2012 03:10 PM #46
      After reading this, I'm glad my car came with Continentals.

      My car is extremely quiet.

    12. Junior Member Griff_333's Avatar
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      '13 B7 TDI SE M
      08-14-2012 10:54 AM #47
      Quote Originally Posted by MUG318 View Post
      I may have to trade my B6 V6 for my new B7 TDI Premium when it arrives in August (if I don't sell it first). If the B7 has the Hankook tires on it, would it be a good idea to move the Michelin Primacy MXV4's from the B6 (with about 10k miles on them) to the B7? I would rather not pay money to replace the B7 tires with a new set.

      I have not seen any 2013 B7s but if they arrive with Conti's, I will be pleased.
      Don't expect the Conti's.
      '13 Passat TDi SE M, Eagle GT wrapped SAGITTA 19s
      '03 Ford SD 250, 7.3L PowerStroke
      '73 Bronco Ranger, Rollerized 5.0

      Humility Before Honor

    13. Junior Member
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      Candy White with Beige Leather 2012 Passat TDI SEL
      08-14-2012 01:40 PM #48
      I have never seen the Contis come on the 18" rims.

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