No more physical TPMS sensors on newer VWs?

[bkpr]

Hey! Forgive my newbie status as I explore my way around a modern VW Golf on The Internet.

Is it true that modern ~2011+-era VWs don't have physical TPMS sensors anymore? And that the tyre pressure system is really a reading of rotational changes from other sensors in the brakes?

[shauno]

Yes

Why need something on the tyre when you can just measure relative rotation?

[65F100]

Yes

So if you change rims the TPMS will still monitor and not go into a fault?

[shauno]

Yup, no sensor on the rims.

[bkpr]

Thanks all. Saves me tryna figure out whether I need to but a second set for the spare wheels!

[Cheezel]

Not necessarily relating to 'newer' VWs. My 2007 Jetta is relative rotation.

[shauno]

Mk5 Golf (etc, etc) 2005+ had it via ABS sensors, not sure if the Mk4 or anything earlier had it...

[The_Hawk]

I've read that you can turn on TPMS vis VCDS even if you don't have the reset button in the glove box. Of course you then need VCDS to rest any error lights. I keep meaning to turn it on but never quite get around to it.

You can also just buy the button and retro fit it.

[dArK5HaD0w]

in-direct and direct TPMS have been around for more than a decade in VAG cars - nothing new, or old about them.
and it still continues.....

[sambb]

Doesn't matter if you fit much bigger tyres or way smaller, the tyre pressure monitoring will work aok. Its not the number of pulses per revolution that matters. There's not a fixed number of pulses per standard tyre/wheel package revolution, its the differential between the pulses counts that matter. eg If one tyres counts get out of step with the others. Your spare just needs to be the same rolling diameter as the others and you're good.

[doc_777]

These two styles of tyre pressure monitoring. Wheel-mounted pressure sensors are still used, but mainly on higher-specification vehicles. Those systems will allow the actual current pressure in the tyre to be displayed. The common system used in the majority of vow uses the abs wheel speed sensors to detect rotation speed differences - basically, deflecting deflation, or a reduction in pressure.

[Foxpuppet]

These two styles of tyre pressure monitoring. Wheel-mounted pressure sensors are still used, but mainly on higher-specification vehicles. Those systems will allow the actual current pressure in the tyre to be displayed. The common system used in the majority of vow uses the abs wheel speed sensors to detect rotation speed differences - basically, deflecting deflation, or a reduction in pressure.

hi Doc,

my B7 passat alltrack had the little metal silver air caps on the 18" canyon wheels. are these part of the pressure reading style setup?

new B8 has standard plastic caps, but i still have the old car so wondering if i should swap them over if its still compatible.

[doc_777]

The valve stem caps have nothing to do with the TPMS - they’re just a cap.

[Foxpuppet]

The valve stem caps have nothing to do with the TPMS - they’re just a cap.

Well there you go, when I got the B7 someone told me that these were part of the TPMS. so I was always careful never to leave them off too long so I didn’t lose them.





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[Cheezel]

My 2007 Jetta's TPMS worked for me over Christmas/New Year. On Christmas day, I was heading up the freeway from Sydney to Newcastle, when the light and chime came on. I pulled over, and wandered around the car, and didn't see anything obvious, so I reset it and continued on. A few days later, the same came on, so I checked again and didn't see anything obvious and reset again. The third time I was able to pull into a servo, where I could see that the right rear was a bit low. I put it on the pump, and it was about 22psi when I like the tyres at 38. I also then saw the nail that was in the tyre. I got the tyre repaired and all is good now. So, for a very slow leak, the tyre pressure monitoring works an absolute treat! I am very impressed with the system.