Fn hell, I think I'll just turn the music up !

 

When you take the sound attenuators outta the air box to increase flow, the road noise is the last thing your worried about.

Edited 15 June, 201510 yr by themanwithnoaim

I did the same thing almost, about a month ago.  I got a ten sheet pack of silent coat, were 4 mm perhaps, can't remember.  It was £15, via eBay.  Each sheet is about the size of a4.  I used 7 sheets on the boot floor and spare wheel well, not completely covered but you shouldn't need to and used 3 sheets to cover much but not all of the underside of the bonnet (not that the two is noisy, just I had 3 sheets left so used them).

 

Very easy to use and took just a few minutes.  I'd say it has made the car quieter.  I never had the 'booming' but road expansion gaps were quite noisy to cross, especially from the rear of the car, and these are less intrusive/noticeable now.  It's not night and day, but it's better and good enough.  Knowing this, if I ever get the carpet up, or in particular if I ever get the trim off the inside of the wheel arches, I'll get more silent coat and cover there too, but I shan't get trim off/carpet up just for silent coat.

Does anyone know what I should be using to soundproof under the bonnet? Silent coat isolators or vibro mats or something else?

Does anyone know what I should be using to soundproof under the bonnet? Silent coat isolators or vibro mats or something else?

 

There's a proper OE kit for this, e.g.

 

http://www.skodaparts.com/product/octavia-bonnet-insulation-2014-2017-50884

 

(No affiliation with vendor - others may be cheaper/better etc. - was just the first link that came up on google for me...)

 

Edit - just noticed you seem to have a TDI VRS.  I thought this kit was standard on the diesel models.  If you already have it and are looking for extra insulation then sorry - no clue!)

Edited 15 June, 201510 yr by iriches

Its sad that you have to add this cheap piece of trim inside the car, even of the spots you cant access, just to make the car more soundproof, because obviously they couldnt have done this in production even if that made the car 500eur more expensive. No they cant do that, you have to buy a better car.

Its sad that you have to add this cheap piece of trim inside the car, even of the spots you cant access, just to make the car more soundproof, because obviously they couldnt have done this in production even if that made the car 500eur more expensive. No they cant do that, you have to buy a better car.

Yup it's the whole VAG strategy. If they had spent that on Skoda, even less would have bought the high end brands VW and Audi.

 

I am now thinking that next time I buy a Skoda, I am going to bargain with the dealer to include more soundproof before collecting the car. I have spent numerous hours getting the trim off and sound proofing material added. Since I am no mechanic it has been trial and error, even with the workshop manual.

 

Anyways, right side rear wheel arch is now done! Took me 3 hours to complete. Left side tomorrow!

The rumbling sound is still there and I think it is coming from the back but feels like it is all over the place in the cabin. Could it be the wheel bearings? I need to do some more analysis as I have installed lowering springs and assuming Skoda might charge me if I ask for them to troubleshoot, claiming it's all because of the Eibach springs.

I notice more road noise when I've got the back seats down (VRS on Bridgestones) but it goes away when I close the parcel cover and put the seats up. Car it still better than the E87 1 series BMW it replaced. Go and have a drive in a Kia Cee'd. Overall a brilliant car but marred by excessive rumbling and a silent (diesel) engine. I spent a weekend driving it on the limiter down the motorway as I couldn't tell!

 

Meanwhile in my T5 I changed the tyres from Conti Sports to Hankook V12 Evos - really quiet!

Edited 25 June, 201510 yr by bob corb

Wheel bearing rumble is normally quite obvious.  Something that sounds similar but not as loud is tyre sawtoothing, are your tyres old enough to have worn like that?

Wheel bearing rumble is normally quite obvious.  Something that sounds similar but not as loud is tyre sawtoothing, are your tyres old enough to have worn like that?

Not really but could be that. I will probably call Skoda to ask for someone to come take a drive with me just to see what they think

Edited 25 June, 201510 yr by kristianRS

Saw the heading for this topic, but can't be bothered to read through all the moaning. I went from a "luxury" L&K to a "Sporty" Vrs, both Tsi. I accept the Vrs is noisier, but that's because I didn't pay for "Luxury". If you want that get an L&K. Not much difference in performance but softer suspension to absorb the road noise.

Saw the heading for this topic, but can't be bothered to read through all the moaning. I went from a "luxury" L&K to a "Sporty" Vrs, both Tsi. I accept the Vrs is noisier, but that's because I didn't pay for "Luxury". If you want that get an L&K. Not much difference in performance but softer suspension to absorb the road noise.

Perhaps you should then read the posts before making a statement like that. The post is about understanding if more people are experiencing the octavia noisier than it's supposed to and try to find what might be the cause of it.

And to come to a conclusion, the noise is in fact coming from sawtoothing. I went by the local tyre shop so a wheel adjustment is needed (again) to stop the sawtoothing from becoming worse, and front tyres needs to be changed to make the noise go away.