Tyre Pressure - whom to believe?

[Bennachie]

So the handbook says one thing, the 'B' post sticker says another and the PCM compounds the issue by suggesting another. All vary by 1 psi. Which one do you believe? Oh and the tyre manufacturers seem to have a different recommended pressure too......................................................?

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[sbarker108]

Go with the B post sticker, that's what I do now. Drives you mad the indecision otherwise. I tried to use the App but my tyres ended up under inflated so I stick with the B post now and ignore any other information beyond a broad guide i.e. do I have a flat.

 

[Murph7355]

Start with B-post then gauge on wear.

Doubly important with the way Taycan tyres wear... Though I'm still reasonably convinced that is down to alignment/suspension settings that aren't as clever as Porsche suggest between the different ride heights

 

[TaycanTurbo22]

B pillar - it’s specific to your car/spec.

 

[Bennachie]

Thus rendering temperature snsitive etc. TPMS redundant...........

 

[Murph7355]

Thus rendering temperature snsitive etc. TPMS redundant...........

The tpms software is a great example of where they spent a load of time thinking they were doing something super-valuable I suspect, and only succeeded in adding unnecessary complexity and user frustration.

My then 16yr old Audi did a much better job. "Store pressures" when the wheels are changed or tyre pressures were updated. That was it. Then it told you when they dropped beyond an amount (5psi I think). Simple dimple.

 

[Sly_North]

So the handbook says one thing, the 'B' post sticker says another and the PCM compounds the issue by suggesting another. All vary by 1 psi. Which one do you believe? Oh and the tyre manufacturers seem to have a different recommended pressure too......................................................?

My understanding is, the Porsche technical bulletin replaces the info that was released with the car (manual or sticker) if your car is older : Porsche Taycan 2022 tire pressure bulletin
And the dealer does set my tire pressure according to this TSB.

 

[Bennachie]

So 37, 39 part load according to that info which concurs with PCM. Sticker says 38 and 40

 

[Beattie]

Could someone with 21” tyres please post a photo of the B pillar tyre pressures? My car originally came with 20” tyres and the OPC changed them for 21” tyres to make the car more saleable. I only have a placard for 20” tyres on my B pillar.

 

[tophamn]

Could someone with 21” tyres please post a photo of the B pillar tyre pressures?

Here you go ...

 

[Beattie]

Here your go ...

Brilliant! Thank you.

 

[TaycanTurbo22]

Spec dependent. Pressures are at 20C tyre temp, so doesn’t make the TPMS redundant at all.

 

[Bennachie]

Interesting that Turbo has the pressures 'the wrong way round'........... for partial load but concurs with full load.

Is that sticker like someone's river side car mat ?

 

[Sly_North]

Interesting that Turbo has the pressures 'the wrong way round'........... for partial load but concurs with full load.

Is that sticker like someone's river side car mat ?

No, several versions of the Taycan have more pressure at the front when the trunk is not heavily loaded. Surprising but normal.

 

[Bennachie]

What is the symbol top left?

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