Each sensor reads out to a separate numbered location. One can't screw up the whole program.

 

That is correct. Each are independent unlike Indirect type TPMS where everything is compared with each other. I tend to believe the aftermarket ones are not accepted by PCM somehow?!

You should have swapped original sensors!

 

There should be no issue with aftermarket sensors. They are typically made by the same supplier anyway. I would try resetting the TPMS again through the MFD.

Did you use any spray sealant on the leaking tire?

 

Yikes, nail in a week old tire. That sucks!

I just was at the dealer yesterday getting a tire repaired because I found a nail.

Hopefully you will be able to get your new sensors reading and working for you.

 

When I went to Discount Tire to repair my tires (2 different times/tires!) I gave them my 19mm thin wall protector socket along with my wheel lock tool & asked them to please use that to not scratch the wheel.

So far so good.

I once had all 4 wheels on my Jaguar XJ8 badly scratched by Sears when I bought new tires there. I made them pay for mobile wheel repair. Very upsetting.

It probably depends on which particular tire shop & which tech does the work.

I just assumed since Porsche charges so much for simple things, like oil changes & usually MSRP or higher for parts, that they would overcharge for tires & installation.

 

Here’s an update...
I took off the repaired winter tire and put the summer wheel and guess what?...after a little bit of driving I had readings in all 4 wheels.
I took off the summer wheel and put the winter back on and guess what? I do not get any readings on any of the 4 wheels.
Sounds crazy how one defective sensor affects the whole TPMS system....now I’m confused but at least I know who to blame when they repaired my flat.

 

Based on other threads here this is a common problem. My guess is that it is software rather than hardware. A similar event happened with me, OE sensors with second set of tires, had a flat, took it off the car to get fixed and put it back on a day later, then no readings on all four wheels. Here's what fixed it.

Engine running while stopped, go to the tire selection menu and change what type of tires that you have. Use the same diameter, just AS to summer or whatever. Then drive off and the system will reset itself and you should get new pressure readings. Once that happens, switch back to your correct tires then drive off again.

The second time I did it with the correct tire setting it didn't read the pressure, so I reset with a different set of tires a second time, let the system read it, then switched back again to my correct setting and it finally "took".

 

What parts are typically replaced when get new tires installed.

(Photo from counter display @ Discount Tire)

 

From the internet...

"Most tire shops and repair shops recommend servicing the TPMS after changing or installing new tires or wheels by replacing the valve core, retaining nut, seal and cap on the valve stem, then testing the system to make sure it's operating correctly. The lithium ion batteries inside TPMS sensors may last anywhere from five to 10 years."

My personal experience, just replace the whole TPM sensor when changing the wheel or tire if it's older than 4 years, or if damage is suspected. One can buy a full set of HUF (manufacturer of Porsche TPMS) sensors on ebay for less than $150 shipped.

https://www.ebay.com/itm/HUF-TPMS-S...156030?fits=Model:Macan&epid=21024280088&hash=item1eeb724f3e:g:ypoAAOSw0HlbrkVk

 

I had no idea this was recommended. For years I have switched over to winter tires without a thought regarding the TPMS, and I've never had a problem.

 

Agreed. I also never touched them. Since it will throw an error, we can always wait for it.

 

I have put on 2 new sets of summer tires on my Macan within last 4 years and never touched the TPMS. So far so good!

Most tire shops including Costco will do the TPMS service when changing tires and charge for it too. But I used a performance shop and asked them not to touch it. TPMS will last 6 years or more easily.

 

Most tire shops including Costco will do the TPMS service when changing tires and charge for it too.

As I've said in the past, you learn something new on this forum all the time.

I have seen the signs at Costco regarding the charge for TPMS service, and in Tirerack.com's installation section many installers show a charge for TPMS service.

Silly me, I always thought it was a charge for resetting the vehicles' TPMS feature after a tire change, and in many cases I thought the charge was sort of steep given how easily it's done. On the other hand, neither Costco or any Tirerack installer has ever tried to tack the charge on, and not one of them has ever mentioned anything about it. I had no idea it involved replacing parts on the sensors/valves.

With either of our BMW's, after having tire(s) installed we have to press the TPMS reset button while stopped and then drive a short distance for the system reset, whereas the Macan resets automatically after being driven a short distance.

The drawing Iconoclast posted seems to show the battery is similar to a wafer battery used in a watch, for example. So the batteries cannot be replaced? Guess it makes sense that everything would be sealed up given the environment the sensors have to live in.

 

Agreed, just got a new set of tires. They are designed to last for at least 5 yrs, but you will get more.

 

Yes the battery is permanently sealed in. That’s why when the battery is gone you need new sensors. Though I have seen folks replace the battery by opening up the sensor unit and reseal it afterwards, which seems too much work to me.

They do charge for the TPMS service, including Costco. They specifically list the charge on their web site. But I think it’s mostly unnecessary and I am not sure if it’s a regulatory thing, like filling proper tire air as mandated.

 

jzwu, has your experience been that the TPMS charge at Costco is mandatory? That has not been my experience here in New Jersey. I have seen before that sometimes Costco's policies vary by region. Not sure why that would be.

 

On Costco web site it’s stated as mandatory. I haven’t used Costco tire center for a while.

 

Seems like over the last 10-15 years, Discount always asked if I wanted the TPMS serviced for a charge. The last two or three tire changes, I noticed they dont ask anyone anymore and the charge does not show on the invoice - I wonder if they just do it now and build it into the install cost or if the sensors are built better and / or dont requiring servicing unless there's a problem? I also wonder if it was just a money maker as sensors became mandatory in the US in 2007.

I am getting summers mounted on the X5 this week - Ill ask and report back.

 

Question:

If upgrading from 18” to 21” can the factory TPMS sensors from the 18” transfer over to the 21”?

What needs to be done?

 

I don't get the question. When you say 'upgrade' are you talking about taking wheels off a car and replacing them with larger wheels? Yes, you could use the same TPMS, but what would the buyer of your old wheels do?

 

Trying to gather as much intel as possible on whether to proceed with getting a Macan S or convince the wife to stay with her V6 Touareg and just go find me a 71 Cuda 383/426/440 manual as a project car


My question is about which system the Macan uses for TPMS. I was appalled to discover that my 2015 RS5 had a system called Eigenfrequency rather than the traditional TPMS. This useless system, developed so they say to avoid the "cost" of replacing the sensors every 8 years or so is another great solution to a non existent problem. But fits in with Audi's minimalist approach where you don't need any info other than your tire is flat. Oh and yes, there's no spare to save weight but we included a jack for your convenience.



So given I live on 3 miles of dirt and gravel roads atop a mountain, I need a real TPMS not a little idiot light that says "your tire is flat". Thus my question, does the Macan show all four tires with pressure (temp would be great but we can forgo that) or does it also have the Eigenfrequency?
Thanx in advance


siberian

 

. . . Thus my question, does the Macan show all four tires with pressure. . .

Macan shows pressure on all four tires in the MFD (Multi-Function Display)

 

Thanx David! Would have definitely been a deal breaker! BTW do you (plural) run Torque?


siberian

 

Familiar story where the sensor is incorrectly reading pressure even though the they are correct.
In my case I keep my tires F@33 and R@36. I scrolled through the tire size and type and changed them to something else then reverted back to the correct tire and wheel with no change. So I over inflated the fronts to 41 and drove the vehicle 1000 ft. and the the light on the panel went away. I am going back down to 33 today and we shall see what happens.

 

Im dealing with this issue 4 times over last 3 months . I did recently see a youtube clip saying the in wheel sensors do need a new battery in each at about 5 years. Guy had a senor and battery charge checker he held on each wheel. He found the one causing the notification, and changed it and problem went away. Im hoping this is a warranty item and am taking my car in next week to address. Cheers, C.

 

Mine will tell me that one of the tires is 9 psi low, I'll check it with my ARB tire deflator gauge and it'll show within 1-2 psi of the recommended pressure and I'll have to reset the **** thing and then everything will be back to normal. TPMS is an idoitic system that was created by morons.

 

I have had a lazy sensor in the right rear. Always lags behind the other three by 2-3#’s. Eventually it will catch up. Next set of tires I’ll get that checked.

 

Just put new tires on my 2015 from Costco got the latitude 3 sport with the generic TPMS, now it doesn’t want to recognize it and puts up the tire symbol wants to learn but doesn’t seem to be able. Do we have to have Porsche TPMS only? How can I get it to clear?

 

Didn't Costco initialize the TPMS sensors during the install?

 

I’m not sure, however reading some other posts the system says it’s trying to learn. So maybe after a longer ride it will sense it. Did read it can take some time before it will sense it.