Buying Winter Tires. The difference between studless tires and TPMS.

Winter tires for Porsche Cayenne
Recommended Car Accessories

About TPMS (air pressure sensor). Can I use an external one?

However, our Cayenne's summer tire wheels are 20 inches, so they're not "20 inches."Why did you go with 19" winter tires?My husband asked, "What do you mean?

Because 19-inch wheels and tires are cheaper than 20-inch wheels and tires.When it comes to winter tires, I don't care about how cool they look, and if I have to replace them in the future when they wear out, I'd rather pay a little less. I don't dislike the 19-inch design, though. On the contrary, I like it because it looks like an SUV.

He said.

In addition, my husband also purchased tire pressure sensors from Yahoo Auctions. The genuine Porsche air pressure sensors cost a lot for four tires, so he got new compatible air pressure sensors for about 20,000 yen on Yahoo Auctions.

I'm not very knowledgeable about a lot of things."Air pressure is automatically displayed at the car's meter when wheels and tires are changed.I had always thought it was a "one of a kind" thing.

."Why bother to buy air pressure sensors? Isn't that something that comes with the car?I asked.

The wheels I bought this time were the ones that the previous owner had sold without the air pressure sensor.
So if you don't change it...Every time you start the engine, you will get an abnormal air pressure system warning.That's annoying, isn't it?
So I decided to buy a separate sensor and attach it.

And. I see...

TPMS

If I had bought the Porsche myself, I would never know such a thing, so as soon as I changed to winter tires, the air pressure warning would come on, and I would be so surprised that I would have to call the dealer, buy air pressure sensors, and take the wheels and tires on and off again, which would cost me a lot of money. I think I'm going to have to spend a lot of money....

My husband, however, was wondering about the air pressure sensors that are not genuine Porsche air pressure sensors.

I see a lot of things on the Internet.I need to duplicate my ID," "I need to set it up."I was actually nervous about how it would turn out because of all the information I had heard.
But the product description says, "Programmed so that the vehicle automatically recognizes it after a few minutes of driving above a certain speed (25 km/h).I was relieved to see that it recognized it without a problem after I ran it for 20 minutes and measured it. And the air pressure readings were quite accurate. The air pressure readings were not at all different from the values on the air gauge, so I think it's pretty reliable.
For your information, to newly recognize TPMS, change the setting from "20-inch summer tires" to "19-inch winter tires" on the car's setting screen.We can make the car aware of the new TPMS.
If you wanted them to be recognized as they are without this work, you'd have to duplicate existing IDs or something, but I don't see the point in doing that.
Just recognize the new TPMS as normal.

He said.

TPMS setting screen

Now that it is finally possible to drive the Cayenne on snow-covered roads, my husband is going skiing in February with a friend of his to see how it actually drives, etc.

So far, they are very smooth on normal roads and feel no different than summer tires, but I will review them again after some more driving.

Mina.

Mother of three children, and the owner of the Porsche blog "A Porsche Came to Our House". Until a few years ago, I was not interested in cars at all, but when my husband bought a Porsche, I became...

Profile

Follow me if you like this blog!

Close Comment
  • Comment ( 8 )

  • Trackbacks are closed.

  1. snow guard (to prevent snow from sliding off of a roof)

    I always enjoy looking at this site.
    This year is the coldest winter in several years, and for those of us who enjoy winter sports, it's the best winter ever (although we can't be too happy about it in this day and age...).
    Since I moved from Kobe to Hiroshima last April, I can now go skiing in a little over an hour each way. When I was in Kobe, it took about three hours to get to Hachikogen, so I can now go there much more easily.
    I switched from an Atenza wagon to a Mercedes E220 All Terrain at the end of last year. At that time, I was not sure whether to choose winter tires or studless tires (because we had a mild winter in recent years and could hardly drive on snowy roads in Kobe), but I chose studless tires (Michelin X ice snow 19 inches) because of their performance on icy roads. As a result, a big cold wave came at the end of the year, and I have already been out to the snowy mountains five times this season (laugh). It is my first four-wheel drive vehicle, and it has been very effective especially when starting up a slope on snowy roads. My two daughters (9 and 5 years old) are playing Youtube and NINTENDO switch in the back seat, so I guess they feel safe.
    I imagine that the Cayenne will be even more amazing - snowy roads and the Cayenne will be a nice picture. I am looking forward to your report on snowy roads with winter tires.

    • Mina.Mina.

      snow samurai (Yusuke)
      Thank you for everything!

      >I switched from an Atenza wagon to a Mercedes E220 All Terrain at the end of last year.
      Oh yes!!!
      And then came the big cold wave... I am so jealous that you can go to the snowy mountains with your car...!
      I had an experience before with an Audi A3 on a snowy slope and had to be pushed from behind because I couldn't go up the slope without slipping;
      It is reassuring to know that you can climb up well without that.

      >I imagine that snowy roads and Cayenne would make a good picture ... .
      Indeed, I have the impression that this is like the right way to use Cayenne (laughs).
      My husband is going skiing in February, so I hope he will come and take lots of pictures and feel the full performance of the tires.

  2. bio-

    Thank you for your always enjoyable blog.

    One point my car teacher used to be a tire test driver and he said that for winter tires, autosock is fine, so if you are going to the snowy mountains, you should always have them on hand.

    Speaking from my experience, I can tell you that when I go down a snow-covered mountain, I often run into it because the temperature drops in the evening and the road surface is frozen and I cannot stop.

    Surprisingly, I think that is more common with 4 wheel drive cars. It must be the weight of the car and overconfidence.
    The Hildissent function may work well, but be careful.

    • Mina.Mina.

      bio-acid
      Thank you for everything!

      I see!
      Indeed, I have a mysterious image that if you have four-wheel drive, you are safe in some snow and ice...
      If you don't drive with a clear understanding of the car, road surface, tire performance, and conditions, it can be dangerous, especially in the winter...

      Thank you for telling us!
      Thank you for your continued support.

  3. reliability, availability, serviceability

    I drive a heavy SUV in Hokkaido, Japan. For your reference, I would like to inform you about the concept (evaluation) of winter tires in our area.

    Here, winter tires are installed as early as late October and as late as late November, and from early April through Golden Week.
    *Hokkaido is a large area, so the time when snow begins to fall varies greatly between the south and north sides of the island (however, I think it is safe to say that the final installation rate is 100%).

    It is often below freezing all day long in midwinter, requiring tires that can cope with icy roads as well as compacted snow, so studless tires made of soft rubber are necessary. So, when changing from summer tires to studless tires, they feel squishy, and they break on curves, but because they are soft, they are surprisingly more comfortable (and noisier) than sport tires.
    Despite this environment, when you go to an import car dealer, you may see winter tires being advertised. Is this a new genre?" I look at them and see that "these tires are not studless tires" and "not applicable for vehicles with winter tire installation instructions," leading me to the conclusion that "they are not usable in Hokkaido" (then don't advertise them, I say).

    In the past, studless tires in this region have been made with the aim of "making the rubber as soft as possible, so that it remains soft for a long time even after aging, and at the same time, having high water-absorbing performance. Therefore, while there are many negatives in terms of athletic performance, recently we have also seen advertising claims of "improved comfort". I guess this means that there are many people who are concerned about it.
    In this respect, Michelin's rubber is not as soft as that of other manufacturers (the blocks are not as standing), and it seems to have improved in terms of mobility. That said, it has an image of not being effective on icy roads (especially scary on curves), and even if you go to car accessory stores on the road, its sales space is less exposed than that of other manufacturers.
    However, Michelin used to sell a tire called "Maxiglas" (more than 30 years ago), which was softer than today's tires, but had an ogre's grip (short life), and other manufacturers followed suit.

    For me, I think Michelin (X-ICE) would be a good choice if you mainly use pressurized snow or sherbet level and not much use of icy roads.
    (I don't know if this is true or not, but) if "winter tires are not winter tires" (which is not correct in Japanese), then when there are "instructions to install winter tires" or "instructions to install anti-slip tires" that often appear in Honshu (in Hokkaido, it is assumed that everyone has them installed, so they do not appear except at the change of season), "no I'm worried that it might be a "No".

    By the way, I am Bridgestone DM-V3 and I am still squishy. LOL!

    • Mina.Mina.

      Mr. RRS.
      Thank you for all you've done for us!
      I thought the realistic information was very interesting, as I have not had a chance to know the tire situation in Hokkaido at all.
      So unique to snow country, and so totally different in the type of tires sold in the stores, exposure, etc.!

      But with such heavy snowfall, on sherbet, when I watch the news.
      The locals are usually driving around in their cars with no sign of fear.
      From someone from Kansai, it's amazing...! I'm impressed...! I thought, "Wow...!

      Someday I'd like to experience driving in the snow in Hokkaido...!

  4. MT mania

    I always look forward to reading your articles. Since the topic was skiing and cars, I thought I would comment.
     I put studless Yokohama ice GUARD SUV on my Forester 6MT for the first time and went to Shiga Kogen at the end of the year and Hachi at the beginning of the year.
     Not only the skiing, but also the driving on the road was extraordinary and fun. Because of the studless tires, we had to drive at a lower speed on the road (mostly at high speeds) and slow down on curves (to avoid shaving the sides of the tires), which was a little stressful even for a low horsepower SUV. I am a beginner on snowy roads, so I took the peace of mind, but it's up to you to decide which you prefer...
     It was cold weather, but it was only from the foot of the mountain road from Shiga Kogen Kami-Bayashi and the bees that we felt a little dangerous. There was a Prado that fell into a ditch on the way down and its wheel came off, a 4WD minivan that tried to back up and go downhill because of heavy traffic on a straight road, and a Lancel that broke through a narrow farm road that had not been plowed at all, all on normal tires.
     I am looking forward to your snow road impressions (and ski resort impressions if possible).
    Also, will there be any undercoating to protect against snowmelt?

    • Mina.Mina.

      MT Mania.
      Thank you for visiting my blog!

      Oh, Shiga Kogen and Hachikita!
      I used to go there when I was younger, I haven't been there in a long time...

      It's more than just having tires like studless.
      I was reminded that the most important thing is to be aware of safe driving.

      And those who boldly take up the challenge.
      And you might have an accident someday.
      I'm afraid to overdo it.< I did a little driving on snowy roads the other day, but there wasn't much snow. I'm hoping to get the experience of running it again when it's snowing like a dope! ^^ I don't have a particular undercoat, etc. Keep up the good work!