Tyre pressure

[entice]

I've always had my tyre presurs adjusted to suit by my trusted wheel alligner. I get them to set up the car (alignment and tyre pressures) for me each time (ie, each time I change cars). Some cars I've run 41PSI (STi with re050) some with 32 psi. Most around teh 36 psi range though
You dont want it too low as under emergency bracking the contact patch will change/deform and will actually reduce in the centre. A little higher than standard so that the contact patch will deform and allow maximum contact. Very vague terms, I know, but that's the info I got when I did an Advanced driver training/performance driver training course. As a guide, they recommended 36psi all round in GENERAL

[cube_3]

[QUOTE=moniker;495633]I hope you mean 30 / 31 PSI as 30 or so KPA would be very flat

Fixed

[geojack555]

Just open 118TSI Fuel tank cap ... and it is there ... tyre pressure for 2 people (low load)... and for 4 people with luggage.

Thanks all. I did check the fuel cap info and found that it could be btw 32-36psi according to no of people travelling. I then ended up topping all to 36psi. Rides comfy and seems to have a better steering control feel. Thanks once again.

[POW]

What tyre pressure you use on your 16" wheel?

Hi guys just like to know what everyone does to their stock 16" tyres pressure. What psi are you using and what you think about it?
Thanks

[Corey_R]

Hey mate, I merged your thread into this existing one.

If you open your fuel door, you'll find a sticker which looks something like this:

This particular fuel door belongs to logger who has added the capacity and the PSI conversions. But basically it gives you the optimum pressure for the tyre types that come with your model of car.

You can run your pressures a few PSI lower and may find you get improved comfort, additional grip, but more fuel consumption and higher tyre wear.
You can run you pressures a few PSI higher and may find you get a harsher ride, but improved steering feel, lower fuel consumption and lower tyre wear.

[Coaster]

fuel efficiency info

Here is a quote from a VW fuel efficiency publication, some interesting info:

Imagine a patch of rubber about the size of a postcard – that's how much of each of your tyres is transferring power to the road at any one time. Despite that, the rolling resistance of this »contact patch« or »footprint« accounts for approximately 10% to 15% of your total fuel consumption. At 20 km/h, rolling resistance accounts for almost all the external resistance acting on the car, and it still accounts for 60% of total resistance at 50 km/h. A big factor in rolling resistance is tyre pressures: if you're just 0.2 bars off the ideal pressure, you're already adding 1% to your fuel bill, due to increased rolling resistance.

Tips:
• Check your tyre pressures, when the tyres are cold, at least once every three to four weeks.
• Even when your car is not fully loaded, keep your tyres inflated to the recommended full load
pressures (for the price of a slight drop in comfort). In your Volkswagen, you'll find the
recommended pressures inside the fuel filler flap.

I keep my tyres about 0.2 bars above the recommended fully-loaded pressures, 2.7 front and 3.2 rear. This allows for any loss in pressure over the next few weeks until the next check, and grip still feels good.

[Diesel_vert]

I would run the front full load pressures all round for normal loads or everyday use (i.e. 2.5 bar cold for front and rear).

Save the rear full load pressure for when you actually plan to run the car fully laden.

[teodeh]

When I was there, Ian Luff's guys recommended all cars run at at least 36PSI all the time (coincidently the recommended PSI for my pug)

[prise]

I run 250kPa in the fronts and 230kPa in the rears in the 16's on my 118TSI. The front carries more weight than the back and loads up even more under braking so running a bit more in the front makes sense to me. I only run more than 230kPa in the rears if I've got adult passengers or luggage for a decent length drive (not worth adjusting for a 5k trip).

I like the bit of extra 'bite' in the steering with the higher front pressures, it doen't seem to hurt the ride noticeably and in theory should increase tyre life and fuel economy.

[BezzyR]

I got a screw in my rear left tyre.. it went through... so they have patched it until a new tyre comes in on order, (19" Dunlop Sprt Maxx)
I was therewhen they fixed it, saw it dumped in the water after they patched it, no bubbles.. so all good, but now the check tyre pressure lights coming on!?! I did even know they had tyre pressure sensors in the R? dont know how to turn it off or why its coming on.. I checked the pressure again today and it was on 40 which the tyre bloke put in it yesterday.. so hasnt gone down.. hmmm any ideas?

[Corey_R]

It's discussed in the manual.
All Golfs (and Polos? basically all VW's sold now?) have pressure monitoring done via the ABS sensors. There is a button in your glove box. You may need to put your head down low and look up to see it. Hold it down until your car beeps (I think that's the procedure), and then drive off. It'll recalibrate itself. You need to do that any time that you adjust the pressures, rotate the wheels, or change a tyre or tyres.

[Brendan_A]

I got a screw in my rear left tyre.. it went through... so they have patched it until a new tyre comes in on order, (19" Dunlop Sprt Maxx)
I was therewhen they fixed it, saw it dumped in the water after they patched it, no bubbles.. so all good, but now the check tyre pressure lights coming on!?! I did even know they had tyre pressure sensors in the R? dont know how to turn it off or why its coming on.. I checked the pressure again today and it was on 40 which the tyre bloke put in it yesterday.. so hasnt gone down.. hmmm any ideas?

I find when a wheel is pulled off the low tyre presure system needs too be reset. You'll find the reset button in the glove box on the right side of the roof of it. Turn the ignition on and hold the button in till it beeps.

[BezzyR]

It's discussed in the manual.
All Golfs (and Polos? basically all VW's sold now?) have pressure monitoring done via the ABS sensors. There is a button in your glove box. You may need to put your head down low and look up to see it. Hold it down until your car beeps (I think that's the procedure), and then drive off. It'll recalibrate itself. You need to do that any time that you adjust the pressures, rotate the wheels, or change a tyre or tyres.

I find when a wheel is pulled off the low tyre presure system needs too be reset. You'll find the reset button in the glove box on the right side of the roof of it. Turn the ignition on and hold the button in till it beeps.

Awesome thanks guys

[vdubber1212]

Ok so I've driven up to Hunter Valley today and I got lost while looking for a vineyard. It's a MY11 GTI with DSG and I had to drive it on a non-paved road for about 5 minutes max at around 20-30km/h. There were three people in the car and as soon as I got back onto the normal road which was still rough but paved, the warning light with the alarm sound came on. I stopped the car and looked in the manual to find it to be tyre pressure monitoring system fault. I've checked all the tyres with my foot but all looked fine. I called VW Assist to enquire and was told a NRMA Roadside assistance will be availble in an hour. The guy called and told me there is nothing he could do if the tyres are all ok as it needs to be taken into the dealership to get it reset. He just asked me to get to a service station to check my tyre pressure. I read in the manual that when tyres are warm the pressure tends to read a bit higher than normal. I have checked all my tyres pressure to be all around 34-36 psi and I thought that was ok. I didn't check inside the fuel cap for normal figures but did try pushing the button in the glovebox to reset it but as I held it down the warning light only disappears for a second and comes back on and it's still there regardless of how long the engine was turned off for. I'm taking it to dealer but thought I'd ask here if anyone could offer some tips. Did I have to hold the button down longer until I hear something? Tyres look and feel fine although I'm only now starting to feel the ride is bumpy on 18" wheels - still no regrets with my choice but wish I had a choice for ACC if that makes any difference. It's just in this kind of road condition that I feel ride becomes harsh.

[Diesel_vert]

So I've driven up to the Hunter Valley in a MY11 GTI with DSG...

A warning light with the alarm sound came on - found it to be a tyre pressure monitoring system fault...

I got to a service station and have checked all my tyres pressure to be all around 34-36 psi...

A tyre's inflation pressure slowly rises by 0.3 bar (approx. 4 psi) when driving normally.

Hence, 2.5 bar (36 psi) when measured hot suggests that the tyre pressures were low, for a GTI.

What does it say in the fuel flap?