I recently had all 4 tire pressure sensors replaced at America's Tire with DILL 1049, but now the system just says Tire Pressure System Inoperative No Wheel Sensors Detected. They initially installed the 351MHz sensors, which were wrong, but even after replacing them to the 433 MHz sensors, the sensors are still not detected. The techs said all sensors scanned just fine.

Before changing sensors, I was still seeing the options to reset or restart the TPMS. Now it just says no wheel sensors detected. I just spent $500 for the sensors & labor and now they're asking me to take it to the dealer. They must be doing something wrong to have the system recognize the sensors.

Anyone ever had to replace their tire pressure sensors with OEM sensors? I might just have them re-install the old ones in.

 

I had the same issue sadly, I had to put oem ones in to fix the issue sensors were sending signal but they wouldnt get recognized

 

Thanks for the reply. I'm going to give them a chance to reprogram one more time. If they still can't be recognized, I'll just have them put back on OEM sensors made by Siemens. There should never be a need to bring it to the dealership each time sensors are changed.

 

I bought winter wheels from Tire rack.com and they were recognized right away and they were not oem. My guess is that they installed improper sensors. The dealer is going to charge you to tell you that too.

 

Same problem here. (2011 ML350) I wish a Mercedes Tech would chime in. I bought new wheels and winter tires last year. Went on TPMS247.com and bought 4 brand new sensors so I could have the guys at Costco put them in when they mounted the snow tires. They worked great all winter. Put the summer wheels back on in the spring, all worked great with the summer wheels and tires. Now mounted the winter ones, did the relearn thing with the dash reset button and it tried to find the sensors about 3 maybe 4 times but now it gave up and only give me the "no wheel sensors message" I'm assuming that it will only try a maximum amount of times before it goes into a fault that needs to be reset with star. I talked to the sensor guys that I bought them from and he says air the tires all the way down and then back up again to wake up the sensors in the wheel so they start transmitting again but I tried that tonight and nothing. Pretty sure because the car is not searching anymore for them. Hitting reset button on the dash does not put them into learn mode anymore. I guess I'll stop by the dealer and ask them if they can reset them for me and report back here.

 

When you mounted the winter tires (it sounds like you are doing this yourself), are you sure you didn't damage the sensors?

 

Nope I didn't damage them. I have both sets on wheels. Just took off the lug bolts and switched the wheels.

 

Gotcha. I thought you meant that you kept using the same wheels, but swapped tires. Yeah, seems kinda weird that all of sudden they would not be recognized. You don't think you got a bad batch?... maybe all the batteries kicked at the same time? Awful good coincidence if it was.

 

Ya the chances of them all going bad at the same time is slim. I thought about setting the summer wheels next to them and see if they register but I'm 90% sure that the software has defaulted somehow and is not even trying to look for them. Otherwise I would get the searching or relearning message for a few minutes like it did when I first took off the summer wheels n tires.

 

As someone who just bought new wheels without sensors, this is timely for me.

 

it will keep looking for them until you tell it not to; through DAS. It does not time out.

You’ll be staring at a tpms failure message until you either disable it in DAS or install compatible sensors and have DAS detect them.

 

This happened to me a few months back, kept recieving a Tpms inoperative message so I got them replaced at discount tire, no fix same thing. Was told to bring it to Mercedes to scan, nothing, was told by mercedes that my battery needed changed. Didn't fix it either. It turned out to be the Tpms reciever. $300 part installed by Mercedes. Best of luck!

 

Same story, 2015 MB GL350 Bluetec. Swapped winter for summer tires using previous wheels yesterday at Discount Tire, now showing TPMS sensor inactive. Reset to current pressure, accept current pressure, probably 10 times or so, had Discount check sensors and all are sending accurately. Tried OBDeleven but that only accesses engine info, no other systems. Sounds like a dealer list will be tragically necessary. Any other suggestions?

 

I might be able to share some info. I did not like the 21” wheels on my 2008 GL550 so I went with a 19” AMG and had to install new sensors .. that system just throws a warning and not specific air pressure . When I transferred the rims to my newer 2011 GL550 the older style did not work so I purchased Schrader 20213 from RockAuto. I decided that I would also purchase a decent TPMS reader .. The Autel TS508WF . First once I installed them then I woke them up by reading each one at a time. Plugged the reader into the OBD port and by the end of my street everything was working. So my question is do you have the individual pressure reading screen on your dash type ? I will include a few pictures and a chart. Notice there are 2 different 433mhz types . One is for the warning type and the other is for individual pressures. I can get a picture of my dash if that helps. The Autel reader will tell you if the sensors are working but you have to figure out which one according to year and capability you need. I figured the price of the tool would pay for 1 trip to a shop and this way when they are rotated etc I won’t need any help . Let me know if I can help you anymore Bill. One more thing..The Autel reader will also go into your MB and read the memory telling you the brand and serial number your car has at each wheel. I also was able to use my IcarSoft to double check that I programmed the new ones into the car… you can’t have the original TPMS still in the memory of the car. OK it’s late and not sure if I am explaining it ?

 

Let us know the year and TPMS Screen readout !

 

The TPMS you posted are for 2007-2009. If you GL falls into that group I would go back to the tire shop and watch them use their reading/programming tool.
1st you read each TPMS.. it will show lbs and serial number info.
2nd After all 4 are read they can plug into the OBDII and the GL should than read the info and during the next couple miles of driving everything should be programmed .

 

have you driven for at least 30 minutes?

 

My personal experience with replacing a complete set of TPMS… once I turned them on with the reader ..within 3 miles the system was working . Today with a rotation and reset they were working within 3-4 miles.
That is personal experience with my 2011. When I put a set of 4 into my 2008 also within minutes of leaving the tire shop the system was active.
1. I would read from the OBDII and see if the new tpms are entered into the system .. if no you need a tool or the tire shop is to re-enter them.

 

Any results yet?

 

Reminds me of a "funny" but admittedly irrelevant story. I was having a tire replaced at Discount Tire (which, I believe, has combined with Tire Rack) on my Audi S5 and I asked to have the TPMS sensor replaced. The guy says, "We don't carry sensors for the Audi." Well, it turns out nobody does - because the don't have TPMS sensors. The system takes readings from a module in the transmission. Yeah, why make replacement cheap and simple when you can charge for a transmission repair? Seems MB isn't the only "premium" brand that goes out of its way to make things more complicated and expensive. After all, we can afford it, right?

 

I'd like to know the principle this Audi system works on.
Reminds me of the compression test in STAR that is actually a derivative of the current used to run the starter and mass air flow, i.e two different values than Bars.

 

Direct TPMS pre 2010 Audi used tire valves like many MB’s etc. Indirect use the ABS system
“tire at low pressure will roll at a different wheel speed than tires at higher pressures. Audi has used both systems in its vehicles, with Direct TPMS being used in earlier Audi models and an Indirect ABS (Antilock Brake System)TPMS system used in later models.”

 

My 2012 S5 did not use the ABS. It was tied to a seemingly unrelated oil pressure sensor in the transmission. I don't know how exactly. But when that pressure sensor was replaced, the TPMS warning stopped.

 

No idea. But Audi told me it was due to a defective oil pressure overflow valve in the transmission. Also don't know why or how an engine oil pressure sensor would be in the transmission. But when that sensor was fixed both my oil consumption and TPMS issues were fixed.

BTW, Audi wanted $6200 for the repair. An independent using Audi OEM parts charged me $1800.

 

Probably differential wheel rotating speeds. My year MB does that in addition to direct measurement; yours probably does too.

I am skeptical that Audi was allowed to transition to indirect only. The obsession with tire pressure is entirely with the regulatory agencies, such as EPA, for fuel savings. Indirect won't tell you if all four tires are underinflated.

Regarding the "compression test": I was assuming it was using cranking rate, like how misfire is identified from variations in engine speed (no idea how this works if or when the torque converter is locked!). Do you know for a fact that the test uses starter current and air flow?

For what it's worth, these guys on mhh auto think it's cranking speed differential: