Bonnet/hood lining.

[MrDeathLad]

Would there be any adverse effects from removing the bonnet lining? And what is the main purpose of it anyway?

[ATYPIC]

The engine noise will certainly be more evident.

[brad]

As well as noise insulation it acts as a heat insulator protecting the paintwork of the bonnet from engine heat. Also helps the engine heat up quicker from cold & helps retain heat.

I doubt anything terrible would happen in the short term.

[QBDentFree]

There are plenty of cars out there that have none from factory. And off the top of my head, corolla sedans come with a "sound pad", but the hatches don't.

I've always been lead to believe they were mainly for sound insulation

[gavs]

Bonnet/hood lining.

Is it on a GTI or just a TSI? The GTI has a heat sheiks built in because of how close the turbo is to the bonnet so it would be a brave soul to remove it. On the tsi's I've looked at under the hood, the turbo is far enough away for it not to really have any adverse effect I can think of.

[MrDeathLad]

Is it on a GTI or just a TSI?

TSI

helps the engine heat up quicker from cold & helps retain heat.

wouldn't be able to tell the difference with temps/warm up times as no gauge on TSI dash.

[brad]

wouldn't be able to tell the difference with temps/warm up times as no gauge on TSI dash.

Really? That's a bit low rent.

As an example, on the Skoda Octavia they fit the insulator to all the diesel models because the quicker they get up to temp, the more efficient the engine is. It's a bit colder over there though.

My 1.8TSI came without the insulator & I paid to get one as I wanted the extra sound insulation & heat protection for the bonnet paint.

I really doubt it would make a huge difference if you removed yours.

[shauno]

Bonnet/hood lining.

Why would you want to remove it?

Weight? Get a CF bonnet

[VWplo]

TSI



wouldn't be able to tell the difference with temps/warm up times as no gauge on TSI dash.

i know right, how hard is it to put a f**kin temp gauge. thanks alot VW

may i ask why you would want to remove this lining?

[PoloDave]

I dont think that it has any benefit when warming up other than standing still idling in a traffic jam, when driving any heat is blown away by the driving wind.

My guess is sound isolation for main purpose

[brad]

I dont think that it has any benefit when warming up other than standing still idling in a traffic jam, when driving any heat is blown away by the driving wind.

That's why they insulate it. To get the heat up as quickly as possible. Any air flow through the engine bay is directed through the AC, radiator & IC cores. There isn't much "blown away by the driving wind" as it's hot already (after passing through the cores). That's why everything under the bonnet is so hot when you lift the bonnet.

[MrDeathLad]

Why would you want to remove it?

Weight? Get a CF bonnet

i know right, how hard is it to put a f**kin temp gauge. thanks alot VW

may i ask why you would want to remove this lining?

could always fit a dash from the GTI but not sure about the connectors for temps...

and just throwing some ideas around. there maybe a thought of bonnet vent for the air box that will probably never eventuate due to lack of skills of any sort. unless i can find a bonnet cheap at a wreckers i could hack up. again, just thoughts and ideas.

[gavs]

could always fit a dash from the GTI but not sure about the connectors for temps...

and just throwing some ideas around. there maybe a thought of bonnet vent for the air box that will probably never eventuate due to lack of skills of any sort. unless i can find a bonnet cheap at a wreckers i could hack up. again, just thoughts and ideas.

RE GTI dash insert, not likely. The money you will spend would have bought you a gti.

If you want to vent the bonnet for functional purposes, dont because I will guarantee that without complex CFD, you WILL produce adverse results.

[nomadx38]

Yeah that's true which is why I didn't do it. I just wanted more engine noise because on the 1.2 there is none! Only exhaust sound now that I removed the muffler.

Also yeah it would cost about 400$ for a GTI speedo and a few hundred extra for wv to code it in here for you. In all not worth it. A good solution though if you really want a gauge like me is get UltraGauge which shows coolant temp in digital. Not sure about oil though...

[LunchboxVRS]

I've been emailing p3 every month about a vent gauge for the polo since the day I got mine. Been told they have some guys in Europe now and are looking at the polo and other cars. May have one around August if you believe what they said but you know how things get pushed back and back