Typre pressures - tyre dealers

Typre pressures - tyre dealers

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Discussion

mawallace

Original Poster:

184 posts

87 months

Friday 18th November 2022
quotequote all
Last week I had my tyres changed at a tyre dealer in Suffolk (I won't name them!) and they inflated my front tyres up to 36 psi - based on my gauge.

Now .. the sticker in the car door says 41 psi - in my words there is a difference. I guessed it as soon as I drove up as

i. the TPMS light came on and
ii. the drive of the car was 'just wrong'.

Can anyone tell me why tyre centres do this - last time I went somewhere else and the tyre was pumped up to 45 psi

Now I accept there might be limits of accuracy but..

and can some one recommend someone in Suffolk who is able to change the tyres and inflate to the correct pressure!

andburg

8,050 posts

183 months

Friday 18th November 2022
quotequote all
Colleague had 4 new tyres fitted by Volvo on her s80. Driving away she thought it didn’t feel right, fronts looked practically flat and she had no pump so called volvo assist.

All 4 tyres were 10psi less than manufacturer recommended, when she took it up with the dealership they blamed environmental factors and the temperature


Lincsls1

3,658 posts

154 months

Friday 18th November 2022
quotequote all
andburg said:
Colleague had 4 new tyres fitted by Volvo on her s80. Driving away she thought it didn’t feel right, fronts looked practically flat and she had no pump so called volvo assist.

All 4 tyres were 10psi less than manufacturer recommended, when she took it up with the dealership they blamed environmental factors and the temperature
Yep, I'm afraid the only way to know they're done right is to do it yourself.
I've even told the tyre fitters what pressure to put in them only to check later and its wrong.

stevieturbo

17,746 posts

261 months

Friday 18th November 2022
quotequote all
mawallace said:
Last week I had my tyres changed at a tyre dealer in Suffolk (I won't name them!) and they inflated my front tyres up to 36 psi - based on my gauge.

Now .. the sticker in the car door says 41 psi - in my words there is a difference. I guessed it as soon as I drove up as

i. the TPMS light came on and
ii. the drive of the car was 'just wrong'.

Can anyone tell me why tyre centres do this - last time I went somewhere else and the tyre was pumped up to 45 psi

Now I accept there might be limits of accuracy but..

and can some one recommend someone in Suffolk who is able to change the tyres and inflate to the correct pressure!
they don't care, they do not know for every single car, maybe their gauges are crap...

It's up to the driver to inspect the condition of their vehicle regularly, which includes tyre condition and pressure.

Depending on TPMS, you would need to set pressures then tell the system they are set and "normal", or some may read pressure automatically.

E-bmw

10,957 posts

166 months

Saturday 19th November 2022
quotequote all
mawallace said:
Last week I had my tyres changed at a tyre dealer in Suffolk (I won't name them!) and they inflated my front tyres up to 36 psi - based on my gauge.

Now .. the sticker in the car door says 41 psi - in my words there is a difference. I guessed it as soon as I drove up as

Can anyone tell me why tyre centres do this - last time I went somewhere else and the tyre was pumped up to 45 psi

Now I accept there might be limits of accuracy but..

and can some one recommend someone in Suffolk who is able to change the tyres and inflate to the correct pressure!
They will not necessarily, or be expected to know what your tyre pressure should be, that is for you to know/sort out. Generally, if you have a specific pressure tell them what to pump them to & they will do that for you, but it is still your responsibility to check & correct your tyre pressures.

QJumper

3,238 posts

40 months

Saturday 19th November 2022
quotequote all
E-bmw said:
They will not necessarily, or be expected to know what your tyre pressure should be
They don't need to know, there's a sticker that tells them. It's just laziness, like garages who over or underfill oil. It's their job to know these things.

stevieturbo

17,746 posts

261 months

Saturday 19th November 2022
quotequote all
QJumper said:
They don't need to know, there's a sticker that tells them. It's just laziness, like garages who over or underfill oil. It's their job to know these things.
And it is vehicle owners responsibility to check these things on a regular basis, to ensure they are suitable for their driving needs.

Smint

2,314 posts

49 months

Saturday 19th November 2022
quotequote all
Not saying you are right or wrong or anything like that, but check your tyre label on the door pillar and your handbook carefully.

Reason being, on older Mercs the tyre label had a headline tyre pressure which you would assume was appropriate, but when you looked more carefully that was for a fully loaded car or for constant speeds in excess of something well above 100mph, you had to knock around 4 or more PSI off if normally loaded or not travelling at autobahn speeds.
I wonder if there could be similar confusion here and the tyre depot have inflated to the standard pressure.

stevieturbo

17,746 posts

261 months

Saturday 19th November 2022
quotequote all
Smint said:
Not saying you are right or wrong or anything like that, but check your tyre label on the door pillar and your handbook carefully.

Reason being, on older Mercs the tyre label had a headline tyre pressure which you would assume was appropriate, but when you looked more carefully that was for a fully loaded car or for constant speeds in excess of something well above 100mph, you had to knock around 4 or more PSI off if normally loaded or not travelling at autobahn speeds.
I wonder if there could be similar confusion here and the tyre depot have inflated to the standard pressure.
The sticker will give a range. Lower pressure for lower weight, and higher pressure for higher.

Up to the driver to determine which suits their needs. If they are unable, then they should speak to someone who can adjust pressure to suit their needs.

E-bmw

10,957 posts

166 months

Sunday 20th November 2022
quotequote all
QJumper said:
E-bmw said:
They will not necessarily, or be expected to know what your tyre pressure should be
They don't need to know, there's a sticker that tells them. It's just laziness, like garages who over or underfill oil. It's their job to know these things.
Yes there is, but it covers several different loading profiles for any car and they have no idea what you use it for.

eg. Mine varies from 33/33 through 33/35 to 35/39 whether lightly loaded/half loaded/full load/sustained high speed etc.

Pica-Pica

15,145 posts

98 months

Sunday 20th November 2022
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I would expect any garage, and especially a tyre place, to set the tyres to the tyre label. If it were my place I would have a printed label to place on the steering wheel saying
‘We have set the tyres according to the fully-loaded condition on your vehicle’s tyre label please adjust to you precise requirement before driving away’

E-bmw

10,957 posts

166 months

Sunday 20th November 2022
quotequote all
I assume you haven't met the tyre chimps at the average fast-fit tyre place then.

And before anyone jumps down my throat, I did use the word average & know there will be exceptions a-plenty.

Bainbridge

206 posts

51 months

Thursday 1st December 2022
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A mobile tyre fitter replaced 2 tyres on my car, and inflated one to 45psi and the other to 25psi. They should be 28psi!