Summer and Winter Tyres

[Lexman8]

Originally Posted by Philip Fisher

So mine is a MY16 T8 registered 1.3.16. It displays the pressure on the main screen. So it has sensors then? So how come when the man from kwikfit came and did my front tyres and would have lopped the valve off and put a new one in that the car still works and doesnt throw a fault..?

If all he did was literally change the tyres he could've left the original valves in place. Btw, with new tyres you need to calibrate the system again, if you haven't already.

[JSYHK]

Originally Posted by JSYHK

I spoke to Volvo UK and they confirmed that their Winter Wheel packs DO NOT ship with TPMS. Am very disappointed and seems absolutely crazy that for a safety feature (Winter tyres) they take one away.
Bear in mind these wheels come balanced from Volvo so would need rebalancing etc after fitting these; so one can only assume Volvo do not intend people to have TPMS working on their winter set. This would only affect MY16 cars.

A Happy ending for me on this issue. I spoke to Volvo Customer service and after 24 hours they approved a goodwill supply and fit of the Sensors etc. It's very odd they sell these packs without sensors.....

[swozniak]

I left looking for wheels too late (as usual) and dealer didn't have any stock. I had to look elsewhere. I ordered BBS wheels from rimstyle.com (who were really good, next day delivery) and Nokian tyres separately from blackcircles.com. Had them fitted yesterday and went for a test drive. I will second what Lexman8 mentioned in the first post. Car is noticeably quieter on the road, much smoother and comfortable ride. I also quite like the wheel design.

I asked my insurance about fitting after market wheels and they were ok with it. I am awaiting the response from the dealer with regards to reprogramming the software as I think the circumference of the wheels is slightly different (2.2% smaller according to wheel-size.com. But all the systems are working fine and car is not complaining so far.

Picture of the rims attached.

[Konst]

your wheels looks nice but very small, is it 18" rims?

[Lexman8]

What size wheels and tyres did you get?

[swozniak]

Yep, they are 18". Better traction in snow. Tyres are 235/60/18 107V Nokian WR SUV 3

[Lexman8]

Originally Posted by swozniak

I am awaiting the response from the dealer with regards to reprogramming the software as I think the circumference of the wheels is slightly different (2.2% smaller according to wheel-size.com0.

Yep, they are 18". Better traction in snow. Tyres are 235/60/18 107V Nokian WR SUV 3

With 235/60/18 tyres there's no need to alter any parameters in s/w as the speedometer reading 'error' is trivial. To be precise, where the speedo would previously have read 30 mph it will now read 29.92 mph and so is well within spec.

[swozniak]

Thanks for letting me know Lexman8

[SwissXC90]

Originally Posted by Driver Dave

As I understand it there are no TPMS sensors on the MY17 cars, the system uses the rolling circumference of the tyre linked via the ABS system, that's why it takes a while to configure and it is important the tyre pressures are correct. if a tyre starts to lose pressure the distance travelled per revolution of the tyre is slightly less and this is what the system picks up not the actual pressure in the tyre.

Finally!
BMWs had this mechanism in place around 15 years ago...

[gaby]

iTPMS may have been something special 15 years ego, but compared to the MY2016 XC90, to me it is a downgrade.
I would prefer TPMS as an option, I would certainly pay for it.
PS:My BMW motorcycle has "true" TPMS.