Can someone tell, the tyre pressures on my Fabia Monti Carlo state 32 psi allround,  from cold, but I have to drive to the garage, so obviously they will have heated up, putting in 32psi t the garage, when driving off the following day, my wheels were grinding on the road, surely I would need to invreas thye pressure to allow for cooling, I beleave the difference can be about 5%, at presnt

Just now, medic565 said:

Can someone tell, the tyre pressures on my Fabia Monti Carlo state 32 psi allround,  from cold, but I have to drive to the garage, so obviously they will have heated up, putting in 32psi t the garage, when driving off the following day, my wheels were grinding on the road, surely I would need to invreas thye pressure to allow for cooling, I beleave the difference can be about 5%, at presnt

Please excuse spelling mistakes,

Depends on the distance to the garage really, if it’s a mile or two they wouldn’t have heated up by much. 
 

And if your wheels are grinding that suggests an air leak or some other serious problem. Even when my front left tyre was 19 psi (oops!) it looked visually fine and there was no untoward noises to let me know of a problem. 

Thanks for your fast reply,  I know they are low profile tyers, but the rims seem to be almost touching the ground at 32psi, and as I said a grinding on moving off from cold,  they all appear to have the same pressures with no change as I do not get any indication from the TPMS.

The last time I put in 35 psi,  of which all were  still showing the same today without change, so I have put in 36 psi.

 

Do you have a 12v tyre inflator? It might be worth doing them on your driveway (ie when cold to get an accurate measurement). If not I would recommend one as a good investment as they’ve got me out of trouble on numerous occasions and if you factor in that my local garage charges 50p for inflation, at £15/20 it’s more than paid for itself over the years. 
 

Do you have the 17 inch wheels? Despite being low profile they shouldn’t be that flat?

 

if the grinding persists I would suggest getting a garage to take a look as it could be brakes or suspension related. Also check for damage around the outer rim of the wheel as this could have damaged the seal between it and the tyre. 

Edited 17 June, 20205 yr by matthall94

Hello, yes they are 17 inch wheels,  I do have a 12v inflater,  I will try what you suggest from cold and see what results I get, thanks again for your advice.

@medic565

Welcome to the forum. 

 

The tyre pressure recommendations for the tyres (Suggestions)  are on a label in the fuel filler flap.

You will need to reset the TPMS.

 

If the tyres deflated by near the same amount the TPMS might not give a warning as there is not an odd reading.

The grinding is rust on the discs usually until worn off.

 

Handy if you give your posts a title that gives a clue to what the post / thread is about.

Edited 17 June, 20205 yr by Roottootemblowinootsoot

As Rootem... suggests, the grinding is probably rusty disk surface from overnight damp. A couple of applications of the brakes should clear it. I really recommend investing in a good tyre pressure guage and pump so that you can accurately set the tyre pressure at home. I never trust the gauge at the garage (although the regulations state they should be within 1 psi). I find 32 psi perfect on my MC. Make sure that when you have them all set perfectly, reset the TPM. 

16 hours ago, Roottootemblowinootsoot said:

@medic565

Welcome to the forum. 

 

The tyre pressure recommendations for the tyres (Suggestions)  are on a label in the fuel filler flap.

You will need to reset the TPMS.

 

If the tyres deflated by near the same amount the TPMS might not give a warning as there is not an odd reading.

The grinding is rust on the discs usually until worn off.

 

Handy if you give your posts a title that gives a clue to what the post / thread is about.

 

Thanks for your comments, the label on the fuel cap does say 32 psi, as I said before it seems too low.

@medic565 I understand 'seems too low', 

but they are not actually too low for the cars weight and tyres fitted, but then you an increase pressure more towards the ECO pressure at the expense of Grip / Traction / Friction.

15 hours ago, TerFar said:

As Rootem... suggests, the grinding is probably rusty disk surface from overnight damp. A couple of applications of the brakes should clear it. I really recommend investing in a good tyre pressure guage and pump so that you can accurately set the tyre pressure at home. I never trust the gauge at the garage (although the regulations state they should be within 1 psi). I find 32 psi perfect on my MC. Make sure that when you have them all set perfectly, reset the TPM. 

 

Thanks for your comments, I do have a tyre pressure pump, I actually had the opposite thought's that the garage pump would be more accurate, as I would expect them to be calibrated on a regular basis, and be more accurate than my portable one,  and keep mine just for emergencies.  I have 36 psi in now,  I have increased the amount thinking to  allow the diference from cold to hot as I understand is about 5% increase in pressure, so I have allowed a bit more, with them being hot when checking,  I will keep a check on them.

3 minutes ago, Roottootemblowinootsoot said:

@medic565 I understand 'seems too low', 

but they are not actually too low for the cars weight and tyres fitted, but then you an increase pressure more towards the ECO pressure at the expense of Grip / Traction / Friction.

 

Yes, I understand, it is this business of inflating when cold which seems to be causing me the problem.

@medic565  Time to get a Tyre Pressure gauge so that you can check the pressures at home when the car is not in a garage and see the actual pressure when tyres are cold in the different seasons.

If you drive easily to a Filling Station inflation device really your tyres heated and the pressures will not be that different.

Non of it is rocket science really.

 

It can be turned into that though.

http://briskoda.net/forums/topic/219400-winter-tyre-pressures

 

Edited 18 June, 20205 yr by Roottootemblowinootsoot

7 hours ago, Roottootemblowinootsoot said:

@medic565  Time to get a Tyre Pressure gauge so that you can check the pressures at home when the car is not in a garage and see the actual pressure when tyres are cold in the different seasons.

If you drive easily to a Filling Station inflation device really your tyres heated and the pressures will not be that different.

Non of it is rocket science really.

 

It can be turned into that though.

http://briskoda.net/forums/topic/219400-winter-tyre-pressures

 

Thanks again, I appreciate the help.