I bought a set of winter tires from Tire Rack and added sensors to the deal. When I installed the wheels the first time, the vehicle recognized them right away no problem. When I switch back to summer tires in the spring, it recognizes them too without issues. I drive a 2012 GL350.

 

I need to know how to PAIR the sensor to the vehicle after I get them from OEwheels. They said they are sent out already programmed to Mercedes but they might have to be paired to the car.

 

Jeez dude it's been said a bunch of times now. No pairing necessary. just put 'em on and go.

I got five more wheels for off roading, with five new TPMS. When I swap them with the road tires, I didn't have to do anything. I think the system just looks for four "everything's okay" signals, and that's it.

 

yeah that sounds good until I’m staring at a “no wheel sensors” message on my dash. I wish everything did just work!

 

They must be the wrong type, or configured wrong. Replace them. Out of the package, the system should just pick them up and be happy.

 

Ugh the guy charged me $100 just to replace them the first time

 

Guys I’m still struggling with these sensors. Nobody can read them let alone program them. They can’t even read the old ones that were taken out of the car before. It’s like wtf.

 

You got wrong frequency ones.
it’s either 315 or 433Mhz iirc depending upon if it’s european or rest of world models

Whatever was in there originally should have the frequency printed on it.

 

I am so sorry you are still struggling. That can be terribly frustrating.

Here is my limited knowledge, some of which may be incorrect:
1) There are two (or possibly more) hardware types, the transmission frequency, e.g. 433 MHz
2) There may be firmware or electronic hardware that restricts the sensor to transmitting via a certain protocol.
3) There seems to be a software level that can be accessed from outside the wheel. The tool wakes up the sensor with a radio signal, and then instructs the sensor to transmit a certain protocol. In more advanced sensors and systems, I think you instruct the sensor what vehicle position it is in.

The sensors wake up from either a RF signal or the wheel rolling. They probably have an accelerometer inside.

There are universal sensors that can transmit at both frequencies, and presumably are universal on the hardware, firmware, and software protocols. However, they have to be programmed.

If you buy a sensor for your specific year, make, and model, the three items above have been selected or programmed for you.

If you are determined to find the cause of the error, start at the bottom and work up. Those sensors should be accessible from outside the wheel, via their RF interface. The tool will also inform you the type of sensor, and you can deduce the compatibility.

If the sensors cannot be woken up from outside, the tool is bad or the sensors are bad. Your old sensors could have dead batteries, at least dead to the point of refusing to wake up.

If you want to quickly resolve the problem, just get four new sensors. I actually installed Chinesium sensors and they seem to work fine, although one of the four intermittently stops signaling. I got a free replacement, but that does not solve my problem: Which of the four is it?!?

You also should rule out some strange configuration issue with your ECU. Check with your scan tool (MBII, Autel, DAS, whatever you use) to see what info it gives about your TPMS. MBII, for example, will report actual pressure readings.

 

the new ones are dual frequency both 315 and 433...they were listed under the x164

 

What makes you say they are wrong frequency?

Even if wrong frequency, they should still be readable and wakeable.

 

Dual frequency seems like a terrible idea, unless you can instruct the sensor to pick one and shut the other radio off. You basically are cutting the battery life in half.

 

Which sensors did you get from OEWheels? What part number?

 

thank you for the info...I did scan it and this is what I got..

 

I didn't know until I called customer service...

I'm supposed to go get some put on at discount tire tomorrow...they are going to refund me for the ones that didn't work at OE Wheel

 

https://www.oewheelsllc.com/Titan-TT...-Mercedes-Benz

 

So it looks like the Titan are sketchy. OEWheels probably would not be so quick to refund if this was a first time occurrence.

Chinesium is hit or miss. With TPMS, the other question is battery quality, which would not manifest for years.

I would stick with name brand, such as Siemens (or Huf?). As I noted, I bought Chinesium last, and one has an intermittent failure. They are such a pain to diagnose, I do not think it is worth it to try to cheap. I am tempted to get a TPMS tool just to save diagnosis time.

Note if you get yourself a bead breaker, you can change the tpms yourself.

Best of luck getting this resolved.