badabing

So I started getting loss of signal intermittently on a few of the TPMS sensors on my '10 987.2 CS. Being as they're about 7 - 8 years old I figured the batteries were dying and it was time to replace. I decided to change all 4.

The sensor I used was "Sens.it" by a company called Alligator. Made in Germany if I recall correctly. They are a programmable 433 Mhz sensor that can be flashed with the Porsche firmware (via a TPMS programming tool).

The sensors are available on Amazon for about $37.00 each.


A competent shop should be able to break the beads and push the one tire bead down enough to change the sensor out without completely dismounting the tire, thereby saving you at least the cost of re-balancing the tires.

A note about programming; There seems to be an error in some of the tpms programming tools out there. In short, they are set up for 987.2 (possibly others) as having 315 Mhz sensors, not 433 Mhz. Thereby, they are unable to read the old sensors or program the new ones.

The workaround in my case was to switch the tool to 2013 911 (which is the same tpms software as the cayman) and everything works.

WenigRot

Thanks for the good info!

CaymanGTS

Nice

syswizard

I would like to retrofit my custom wheels and tires for this mod.
but.....Where does one get a TPMS programming tool ?

DaveCarrera4

Great advice.

syswizard

There are no reviews for this product.
My question is: will I need to get the tires rebalanced after installing these ?

WenigRot

You shouldn't have to but when mine were replaced, I noticed a vibration. Brought them back in to have balanced. Only one wheel/tire needed re-balancing.

DBC

A good tire shop should be able to break the tire to rim seal at the air valve/TPMS location only.

Since the entire "backside" of the tire remains sealed to the wheel/rim and the TPMS sensors are usually similar in size and weight, your original balancing should remain intact with no need to re-balance the wheel/tire.

badabing

My post can be considered a review. I've had these for a few months now and maybe 10 track days and they work great.

badabing

I used the Bartec SD400