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Snow Tires, Dedicated Rims, and TPMS - Page 3

post #61 of 62
Quote:
Originally Posted by SpikeDog View Post

 

OK, let me know how that all works out.

 

Most TPMS systems are the bitch combo plate of snow tire maintenance.

 

 

Not me, I don't have TPMS on neither my Audi nor my Volvo. Just offering an alternative to the OP, who wants to possibly find a way not to install them. I think it is a mostly useless feature unless you have run-flats. Me, I always run a second set of winter wheels on both vehicles, and I would, personally, have them installed with TPMS if I had it.

post #62 of 62
Quote:
Originally Posted by ScotsSkier View Post


Yes, the new system use the ABS sensors instead UL. I was not sure if all the Volkswagen Audi group vehicles had changed to this or not in 2011 but looks like they have.
Interestingly there can be differences in Canada and us spec vehicles as well. When I was researching for my wife's BMW, it turned out that the Canadian spec used the abs sensors and the USA version used tpms sensors. As Sod's law would have it I picked up a set of wheels and sensors from the same model year, mounted the tires and then found that it was the wrong sensors! This thread is timely actually because it reminded me I need to go and swap over the sensors now so I can change her wheels over.

 

That's probably true.  Our BMWs don't use transmitter TPMS sensors.  They work on the principle of tire rotation and sense the rotational speed change that occurs when a tire deflates, detected through the ABS system.  I believe they call it FTMS (flat tire monitoring system) since it doesn't actually measure tire pressure.  It isn't new, though.  BMW has been using it for quite some time (at least in Canada).

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