4 minutes ago, AGFalco said:

In this Country from 20 May if you have a TPMS system it has to work for you to pass the MOT.

An MOT is a UK annual car safety check.

Some direct TMPS systems don't show you the live tyre pressures and only warn you when they get to a certain low level.

I have seen some that only warn you when they get to 2.0 bar when the correct pressure should be 2.6 Bar.

So they only warn you when the pressure is already down by 25-30%.

have you visit link i posted above?

TMPS isn't the same as Direct TPMS.

yes, there are alarm signals, but thresholds are configurable by user,

also numbers are on the display all the time

moreover, pressure + temperature

 

3 hours ago, AGFalco said:

Some direct TMPS systems don't show you the live tyre pressures and only warn you when they get to a certain low level.

I have seen some that only warn you when they get to 2.0 bar when the correct pressure should be 2.6 Bar.

So they only warn you when the pressure is already down by 25-30%.

 

I will always prefer the ABS based TPMS system (think that is what some call indirect TPMS. Had it on Mini, BMW and Seat. I accept that there is no pressure display on the dash but TPMS is not a replacement for regular maintenance, no fancy system can do what the Mk 1 human eye does e.g. checks for mails in the tread before they even leak.

 

ABS TPMS warned me a couple of time when I had a pressure drop and almost certainly saved the tyre (possibly more than that). There had to be about a 10 psi drop in pressure bfore it alerted you and even then it was not obvious which tyre it was without a gauge. A quick pump with my trusty old Halfords pump and back on my way (to a tyre fitter).

 

Wifes Nissan had valve based TPMS. It alerted you earlier but still no pressures displayed and no indication which corner it was.

 

Main difference was the price for a valve it it became faulty, think it was about £70 a throw.

I've been gradually lowering my tyre pressures for a more comfortable ride. I'm down to 36 psi now. 32 really seems low to me. The lowest my car recommends to me is 34 psi, but that is with passengers and a bit of luggage, so I suppose 32 is not unreasonable, but I'll bet that low pressure and an alignment issue would explain the tyre wear.

7 hours ago, MartiniB said:

have you visit link i posted above?

Yes.

Which is why I said 'some' direct TPMS systems.

The system you link to is a thorough system which will cover issues I noted. 

 

Some cars come with a direct or active TMPS system from new. So some people would not change the cars TPMS system.

4 hours ago, skidpan said:

Wifes Nissan had valve based TPMS. It alerted you earlier but still no pressures displayed and no indication which corner it was.

These might or might not give you a pressure reading. They also might or might not tell you which tyre is low.

 

Most new cars come with a passive TPMS system using the ABS/Speed sensor.

These don't tell you the pressure but might tell you which tyre is low.

 

Hope this helps.

 

Thanks AG Falco

 

 

My 19 inch fronts have worn heavily on the very inside too. L & K 280 TSI.  The dealer said they had the alignment done prior to collecting it.  Its still under warranty do you reckon they will take me on lol. I doubt it eh. Could this be done through under steer? 

Hello All,

 

I have a Skoda Superb 218 Sportline and have had to get two new front tyres (Pirelli P7 235/40 R19 96W). The near side tyre deflated due to excessive wear on the inside just like PhillipH and Russ1610. I was told by the guy that ran the tyre place, that the wear was too excessive for it to be the camber. He pointed to worn ball joints or worn control arm bushings. When I got home I checked the insides of each tyre and they were much hotter that the outside. 

Running the tyres at a higher pressure and rotating them as AGFalco suggested, seem a work around and not a fix.

 

PhillipH/Russ1610: Did you get to the bottom of what caused this issue??

 

My mechanic friend is going to have a look tomorrow, hopefully, so I'll update when I know more.

@Sanpanuk Could you maybe post how long / how many miles they have been on and when they last looked perfectly ok when they were last rotated, how many miles ago.

and is that just back to front.

What is this higher pressure you were running them at? 

I had mine lazer aligned, even camber was good, they didn't recommend any adjustment. All was ok with alignment. I run my pressures at 2.8 bar now. See how this set goes! 🤞

Roottoot: both front tyre had done about 15k miles and I’ve been running them at 2.3bar. 

Marktgod147: will try 2.8 bar and check the effect over a few weeks.

Quick update: My mechanic friend checked the ball joint and control arm bushing and more but all was ok. Running at 2.3bar the inside of the tyre for very hot however at the higher pressure of 2.8, the inside of the tyres are still get warmer than the outside which I suppose is normal as there’s less air flow.

 

On 21/06/2022 at 00:06, Sanpanuk said:

Hello All,

 

I have a Skoda Superb 218 Sportline and have had to get two new front tyres (Pirelli P7 235/40 R19 96W).

 

Are the other cars having this issue also using Pirelli P7 235/40 R19 96W ?