Driving back from the VolksWorld show today, I had the indication on the dashboard of a loss of pressure in one of the tyres.

I measured all 4 tyres, Three of them had 29.5 PSi, and one with 29 PSi. I topped up the 0.5 PSi and reset the TPMS.
However I have no idea what the correct tyre pressure should be.There is no sticker inside the fuel flap, and the manual doesn't have this information.

Can anyone advise please? The tyres size are: 225/35/19.

 

Thank you.

Edited 5 April, 20224 yr by Noms
spelling

My 2016 VRS estate TDI shows this in the fuel flap...

Here is the information inside my fuel flap, very much the same information as the one steelyboy posted. 

As above they should be 2.7 bar for normal use which is about 39 psi. So your tyres are 10psi too low! The pressures are generally higher with lower profile tyres to help support the tyre wall and to try and prevent pot hole damage etc

If perhaps of use to you in the future, you can get the sticker replaced, as if you look in the bottom right of each of the photos, 5E0.010.000.xx is the factory part number.

 

But that would also lead me to question why its not there, as I had a Seat that was bought from a main dealer with 8k miles on it and 1 year old. It was missing this very label from when i bought it so got it from the dealer for a few quid and thought little of it. 

 

Little did i know until some years of ownship later, it had had a side impact crash and the whole rear quarter replaced including the filler lid.  i foolishly thought at a low mileage and from a main dealer it would not have been sold with accident repair damage (lesson learned) Kept it for 12years ~190000 miles before scrapping it. The rear door repair had rusted and rear quarter was bubbling out by then. Take a close look at your paint work, body panel alignment and any sealants over welded area's. 

Edited 20 March, 20224 yr by paulski

3 hours ago, Ecomatt said:

As above they should be 2.7 bar for normal use which is about 39 psi. So your tyres are 10psi too low! The pressures are generally higher with lower profile tyres to help support the tyre wall and to try and prevent pot hole damage etc

OMG Thank you for pointing that out. This means that I have been driving around for the past 12 months (around 6,000 miles) with low tyre pressure!

The dealer should have really checked this before selling the car. First thing I'm doing tomorrow is pumping all the tyres up to 39 PSi. Thank you!

1 hour ago, paulski said:

If perhaps of use to you in the future, you can get the sticker replaced, as if you look in the bottom right of each of the photos, 5E0.010.000.xx is the factory part number.

 

But that would also lead me to question why its not there, as I had a Seat that was bought from a main dealer with 8k miles on it and 1 year old. It was missing this very label from when i bought it so got it from the dealer for a few quid and thought little of it. 

 

Little did i know until some years of ownship later, it had had a side impact crash and the whole rear quarter replaced including the filler lid.  i foolishly thought at a low mileage and from a main dealer it would not have been sold with accident repair damage (lesson learned) Kept it for 12years ~190000 miles before scrapping it. The rear door repair had rusted and rear quarter was bubbling out by then. Take a close look at your paint work, body panel alignment and any sealants over welded area's. 

It's odd, I have the fuel sticker, but not the tyre pressures. I can make out the outline of where the sticker used to be, so maybe it's just come off. Possibly when the ice scraper has been used previously?

I'll try and get hold of a replacement sticker. Thanks.

 

Edited 20 March, 20224 yr by Noms

29 minutes ago, Noms said:

OMG Thank you for pointing that out. This means that I have been driving around for the past 12 months (around 6,000 miles) with low tyre pressure!

The dealer should have really checked this before selling the car. First thing I'm doing tomorrow is pumping all the tyres up to 39 PSi. Thank you!

Tyres need to have their pressure checked regularly. You can’t come to the conclusion that the dealer didn’t inflate them properly 12 months ago by using a measurement from now. That’s on you, I’m afraid. 

4 minutes ago, SC03OTT said:

Tyres need to have their pressure checked regularly. You can’t come to the conclusion that the dealer didn’t inflate them properly 12 months ago by using a measurement from now. That’s on you, I’m afraid. 

I understand. But wouldn't the TPMS alert me when the pressure dropped? Or is that only if one of the tyres is inconsistent with the rest?

23 minutes ago, Noms said:

I understand. But wouldn't the TPMS alert me when the pressure dropped? Or is that only if one of the tyres is inconsistent with the rest?

 

The standard TPMS is only relatively basic monitoring via ABS to identify if one tyre is out of sync with the others, it's not monitoring the actual pressures. You still need to check them regularly.

Sticker came off on my Octavia one windy day at the fuel pumps and never got a replacement. They do come loose.

Interesting post in the Tyre zone section about tyre pressures. 

@Noms it's likely then that the TPMS was reset at the wrong pressure just to get rid of the alert on the dash at the dealer.

 

So without pointing out the obvious, inflate to the correct pressure first, then go into your infotainment menus, and reset the tyre pressure warning, and you need to drive it a few miles straight after doing that for it to properly calibrate the system.

 

 

Edited 21 March, 20224 yr by paulski

1 hour ago, paulski said:

@Noms it's likely then that the TPMS was reset at the wrong pressure just to get rid of the alert on the dash at the dealer.

 

So without pointing out the obvious, inflate to the correct pressure first, then go into your infotainment menus, and reset the tyre pressure warning, and you need to drive it a few miles straight after doing that for it to properly calibrate the system.

 

 

Done. Thank you!

I'm always a bit freaked out by the pressure needed with a full load .

3.3bar is 48psi ... which always strikes me as being high. Do you guys pump them up to that level ever ?

I'm similar to the OP in that 30psi has always been my goto pressure but it looks like I may need more air in my tyres too. Does it matter what speed rating , load rating , or make or is the lable applicable to all tyres based o  rim size ?

Thanks

15 minutes ago, 3rdoctavia said:

I'm always a bit freaked out by the pressure needed with a full load .

3.3bar is 48psi ... which always strikes me as being high. Do you guys pump them up to that level ever ?

I'm similar to the OP in that 30psi has always been my goto pressure but it looks like I may need more air in my tyres too. Does it matter what speed rating , load rating , or make or is the lable applicable to all tyres based o  rim size ?

Thanks

Actual load, tyre profile and rim size are the governing factors. Pressures for sustained high speeds should be similar to those for full loading.   

Edited 21 March, 20224 yr by Warrior193
added note.

36 minutes ago, Warrior193 said:

Actual load, tyre profile and rim size are the governing factors. Pressures for sustained high speeds should be similar to those for full loading.   

 

Crikey, at 48psi would it not feel as if the car was on skates though ?? I've never ran them that high 😳

 

18 hours ago, Kenai said:

 

The standard TPMS is only relatively basic monitoring via ABS to identify if one tyre is out of sync with the others, it's not monitoring the actual pressures. You still need to check them regularly.

That's true of the original indirect TPMS software that only compared current rotational speed of the wheels with each other, but the TPMS software in the Octavia 3 can detect loss of pressure in all 4 wheels - it keeps a long term set of data that will show loss of pressure in all 4 wheels.

13 minutes ago, PetrolDave said:

That's true of the original indirect TPMS software that only compared current rotational speed of the wheels with each other, but the TPMS software in the Octavia 3 can detect loss of pressure in all 4 wheels - it keeps a long term set of data that will show loss of pressure in all 4 wheels.

How does it do this?

There is no facility to record pressures. If all 4 tyres lost pressure at the same rate the system wouldn't show a fault.

16 minutes ago, PetrolDave said:

it keeps a long term set of data that will show loss of pressure in all 4 wheels.

 

1 minute ago, JD52 said:

How does it do this?

There is no facility to record pressures. If all 4 tyres lost pressure at the same rate the system wouldn't show a fault.

As the pressures drop the rotational speed of the wheels increases, keeping a long term record of wheel rotational speeds allows this increase in rotational speeds to be detected and reported as a loss of pressure. That's how VAG explain it...

 

I certainly had my Octavia 3 report loss of pressure in all 4 tyres (I set the tyres during a heatwave and when the temperature dropped the tyre pressures dropped and the TPMS light came on), yes I did need to pump up all 4 tyres.

20 hours ago, Noms said:

OMG Thank you for pointing that out. This means that I have been driving around for the past 12 months (around 6,000 miles) with low tyre pressure!

The dealer should have really checked this before selling the car. First thing I'm doing tomorrow is pumping all the tyres up to 39 PSi. Thank you!

 

Once again scary

 

Driving a car for 12 months without ever checking the tyres or even knowing what the correct pressure should be, and as for blaming the dealer 12 months henceforth, words fail me!

 

Checking the tyre pressures and fluid levels would be the very first thing that I did on getting home with a new (to me) vehicle and something I always do after new tyres are fitted, never once have they been inflated to the correct pressure, never once in 45 years aside from the last couple where I have been doing my own tyre fitting.

I think that the OP has learned from their mistake and we can all be happy that our contributions have made one driver safer. 

 

And such mistakes are more common I'm sure than we'd like to think. At least routine checks are at least part of the driving tests now. My 19 year old niece clearly knew her checks when I last saw her, as she asked to borrow my tyre gauge to check when cold 👍

 

My sister in law trusted a "friend" to inflate her tyres and drove from the southern England to Scotland and back, her numpty friend put them down to 18psi from a required 32. She said the steering was a bit odd! 

 

Now I'm the only one that checks them..

23 hours ago, Noms said:

I understand. But wouldn't the TPMS alert me when the pressure dropped? Or is that only if one of the tyres is inconsistent with the rest?

It will. Probably it was set to too low value initially. 
 

Inflate them properly and note it via SET option for TPMS to start learning their frequency pattern.

 

14 hours ago, PetrolDave said:

 

As the pressures drop the rotational speed of the wheels increases, keeping a long term record of wheel rotational speeds allows this increase in rotational speeds to be detected and reported as a loss of pressure. That's how VAG explain it...

 

I certainly had my Octavia 3 report loss of pressure in all 4 tyres (I set the tyres during a heatwave and when the temperature dropped the tyre pressures dropped and the TPMS light came on), yes I did need to pump up all 4 tyres.

 

This still requires a datum point to be set. It also may use the different speeds of the wheels when turning as part of the comparison coding. I guess the systems have come a long way with the ability to log lots of data.

I still struggle to understand how a passive system can report all tyres needing air unless they are down at different levels.

20 hours ago, paulski said:

And such mistakes are more common I'm sure than we'd like to think.

I'm not quite sure what the mistake is in never considering something that yours and other peoples lives may depend on, it's not like taking a wrong turning.

 

The reason that I find it scary is that I am under no illusions and believe that the vast majority of todays motorists fall into that camp and that its myself who is the exception, the sheer volume of vehicles on the road with so few actually having regular safety & maintenance checks is what makes it scary rather than what individuals do.