Badger5AH Fabrications
Results 1 to 12 of 12
Like Tree4Likes
  • 1 Post By keyser
  • 1 Post By Silky-S3
  • 1 Post By Cumbrian_bob
  • 1 Post By Chimp

Thread: S3 s-tronic "grunt" when shifting explanation...

  1. #1
    Ziggyma89's Avatar
    Neutral

    Status
    Offline
    Join Date
    Mar 2013
    Posts
    63

    S3 s-tronic "grunt" when shifting explanation...

    Can anyone explain where the actual sound comes from and why it does this?

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    Neutral

    Status
    Offline
    Join Date
    Jul 2013
    Location
    Scotland
    Posts
    77
    My understanding is that it's a backfire caused on downshifts by engine braking.

    Is it on downshifts only? (Mine's a manual s3.) If on upshifts as well, then also a backfire but probably caused by an intentionally rich mix, leaving fuel to enter the exhaust system.

    Happy to be corrected obviously...
    Ziggyma89 likes this.

  4. #3
    Ziggyma89's Avatar
    Neutral

    Status
    Offline
    Join Date
    Mar 2013
    Posts
    63
    From what I've seen on videos is that it happens wen up shifting. The dealer also said it makes a sound when downshifting too. Ordered the s tronic. only got to test drive the manual

  5. #4
    Silky-S3's Avatar
    Is loving his new 8V S3!

    Status
    Offline
    Join Date
    Jan 2009
    Posts
    1,390
    Happens on upshift mostly, sweet spot is about 6250rpm. ECU throwing load of fuel in when shifting to richen up the mixture and ignite it in the exhaust. Sounds awesome.
    Aran383 likes this.
    S3 8V Sportback Stronic, Estoril Blue Crystal Effect, Black Interior, Adaptive Cruise with Stop & Go & Pre Sense, Super Sports Seats with Electric Lumber, LED Headlights, Interior Lighting Pack, Hill Hold Assist, Privacy Glass, Comfort Package, Technology Package with Audi Connect, Advance Key, Folding Door Mirrors, Extended Mono.Pur Interior, Front and Rear Parking Sensors, Audi Sound System.

    Build Thread Here!

  6. #5
    Ziggyma89's Avatar
    Neutral

    Status
    Offline
    Join Date
    Mar 2013
    Posts
    63
    Thanks lookin forward to it!!!

  7. #6
    lotus's Avatar
    Neutral

    Status
    Offline
    Join Date
    Oct 2013
    Posts
    75
    It's strange how the sound of a badly tuned engine is used to purvey power, that said I like it, though I'm getting a manual so won't have it.

  8. #7
    6th Gear

    Status
    Offline
    Join Date
    Sep 2013
    Location
    East Sussex
    Posts
    1,583
    I have heard that the exhaust has flaps inside them which will cause the 'pops'.
    Now a proud owner of a A3 1.4 tfsi Saloon S-Line, 6-speed, Daytona Grey, Technology Pack, Comfort Pack, Cruise, Advanced Key, Privacy Glass, Audi Parking System Plus, Interior Lighting, Folding Door Mirrors, Light & Rain Sensor. Hold Assist.

  9. #8
    1st Gear

    Status
    Offline
    Join Date
    Aug 2013
    Posts
    226
    I have only noticed it on the upshift, but you also get to hear it make a little burble on the efficiency mode when the power goes off when it goes into coasting downhill.

    You can also amend the level of noise from the MMI, not sure which parts this turns off. I have this setting on individual mode so I can has the sporting steering and accelarion but not the louder noise.

    I am guessing the attenuator (speaker) and the exhaust flaps are available on both manual and Stronic S3s, and more for normal engine sound not just the gear change sound.
    r500frs likes this.
    Last Car A5 Coupe 1.8 Sport,
    Current car 3 Door A1 1.4 (185) S line - Misano Red with contrast line, arm rest, 18" sline alloys, Xenon, Climate, tyre pressure monitor
    Next Car 3 Door S3 Stronic - Estoril Blue, Comfort Pack, LED Headlights, mono.pur, heated folding mirrors, AHH, B&O, parking plus, lighting pack, tyre pressure monitor

  10. #9
    1st Gear

    Status
    Offline
    Join Date
    Oct 2008
    Posts
    101
    On the test drive of a Manual I managed to get a slight pop on upshifts when I was driving "enthusiastically". On the S-tronic test drive it pops every gear change and in sport mode it poped on downshifts too. Also noticed the box auto "blip" the revs on downshift.
    Ziggyma89 likes this.

  11. #10
    rams_s3's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Nov 2010
    Posts
    276
    Quote Originally Posted by Chimp View Post
    On the test drive of a Manual I managed to get a slight pop on upshifts when I was driving "enthusiastically". On the S-tronic test drive it pops every gear change and in sport mode it poped on downshifts too. Also noticed the box auto "blip" the revs on downshift.
    I need to learn that one seen as mines manual!

  12. #11
    Joetidman's Avatar
    4th Gear

    Status
    Offline
    Join Date
    Nov 2013
    Posts
    703
    I was told by the dealer, its actually an small bit of additional fuel injected specifically at that point and the sound is it being burnt off in the exhaust. I actually love the fact that Audi built it in. Fuel being wasted just to make a great noise, not very Audi!
    S3 Saloon S-Tronic. Panther Black. Tech Pack, Super-sports seats, LED Lights, Comfort pack with Adaptive Cruise and parking plus, Folding mirrors, Bang and Olufsen Sound System, Interior Light Pack, Hill Hold Assist, Privacy glass, Tyre sensor, Boot Mat (Countdown Thread)

    Previously 2.0TSi VW Scirocco

  13. #12
    Dan_G's Avatar
    1st Gear

    Status
    Offline
    Join Date
    Dec 2013
    Location
    SW London
    Posts
    151
    Doesn't do it in Eco mode I don't think.

 

 

Similar Threads

  1. S3 2010 S-Tronic with turbo lag when changing gear?
    By OliS3 in forum A3/S3/Sportback (8P Chassis)
    Replies: 28
    Last Post: 24th January 2013, 16:33
  2. just been quoted 495 extra for 1.8t sport...
    By xdam in forum A3/S3 Forum (8L Chassis)
    Replies: 14
    Last Post: 26th May 2004, 10:36
  3. Had any shock insurance quotes after a claim?
    By noodle in forum General Chat
    Replies: 1
    Last Post: 21st October 2003, 05:10
  4. It's that time of year again - insurance quotes?
    By ColinM in forum General Chat
    Replies: 17
    Last Post: 14th April 2003, 17:03

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO