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Sound Actuator

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12K views 30 replies 6 participants last post by  SwissJetPilot  
#1 ·
From listening to youtube clips of the Mk3, it would appear that the Actuator (which I believe is present in a more basic form in the Mk2) makes a reasonable 4 / 5 cylinder sporty note in the std TT

Can this improved system be adapted to enhance the Mk2 or fine tuned in the Mk3 by downloading 'tuned maps?!'

just curious
 
#4 ·
For anyone that is interested, the sound actuator is under the passenger side scuttle panel.
Remove the rubber seal/edging on the scuttle panel and lift it up. If you can see a black round device with a silver bolt on top, that's the sound generator.
I just unplugged it, there is a clip underneath that you have to squeeze. It's a little tricky, but if you can get your hand upside down under it, it's easier.
I looped the connector round the wiring and tucked it in to stop it rattling.
Will let you know if there is any difference once I drive it again.
 
#6 ·
That's the one. Is present on my 2012 TTS. In the second diagram it sits between components 4 and 6, closer to 6.
It's easy to unplug if you have dexterous fingers. You need to squeeze it from below to unlock it.
Just lift the passenger's side scuttle panel up (the bit above the suspension strut tower) and you will see it nearer the middle of the car. The scuttle panel bends up with enough room to get a hand under it, just don't force it too far.
Went for a short test drive and the car is much quieter from the front end, a lot of vibration and 'drone' has gone, so much so that I am now aware of the tyre noise.
 
#7 ·
Nice quiet drive in this morning, all the 'booming' has gone, less vibration through the pedals, I was always aware of an engine 'noise' which was more towards the passenger side of the car, that has dropped by 95%

Best free mod I have done in ages. I know some people will prefer the sound, so if you have one, try unplugging it, tuck the connector away so it doesn't rattle, you can always plug it back in again if you prefer the noise, only takes 5 mins, no tools needed. :)
 
#10 ·
ianpgonzaga said:
pdk42 said:
Sorry, dumb question... what is a scuttle panel? Is this evil thing likely to be installed on a 2010 3.2?
The panel that covers the wiper motor/ecu/wiring right under the windscreen
OK - thanks. I'll go looking. From where does the sound from the actuator emanate? Is it the speakers?
 
#18 ·
SwissJetPilot said:
According to workshop manual A005TT20021 - Wiring Diagrams & Component Locations, this is only on the CBBB & CFGB engines. Which would explain why I can't find this thing on my VR-3.2 (BUB). :)


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Thank heavens that it's not on the 3.2! The whole concept sounds like a stupid idea IMHO. What were Audi thinking of? If you want noise, an induction intake "tune" would be a much better idea. The BMW Z4 (E85 variant) for example allows the owner to add or remove foam inserts to vary the amount of induction noise. This is a great solution since at low throttle settings (cruising) there is no additional noise, but under wide throttle you get a nice growl - and it's real, not some electronic buzzing!
 
#20 ·
With electric cars heading our way in the not so distant future, sound generators will probably have a whole new purpose. If that's the case, it would be fun to be able to toggle between a V-6, V-8, V-10 or V-12 just to have a cool sound coming from your car.

Personally, I've always been a big fan of the sound of a P&W F100 at full afterburner. Just sayin' :p