07-26-2018, 04:08 PM | #1 |
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TPMS Problem with New Wheels
I have a 2015 M235i. I installed four wheels and tires from TireRack, with TPMS installed. I drove around for half an hour, but the monitor continually shows just "1%" on the TPMS reset status. I've restarted the reset process a few times and it never progresses past 1%.
Anyone have any ideas? I hope I'm just doing something stupid and/or overlooking the obvious. |
07-27-2018, 01:03 PM | #2 | |
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07-29-2018, 06:01 AM | #4 |
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433mhz
Look at your receipt and see if you have 433 MHz sensors.
. If you have the correct sensors but just one of the sensors is bad none of the sensors will register and you will get a TPMS Malfunction light. You can go down to your local tire store and have them verify that your sensors are transmitting - for free. My local Discount Tire is great and recommend them. Not to get off topic but Discount Tire even beat my total out the door Costco price. |
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07-29-2018, 02:47 PM | #5 |
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Thanks for the comments and suggestions.
After resetting the tpms from a cold start, the resetting process moved past 1%: it reached 49%, stalled for awhile, and then displayed a "TPMS failure" warning/error. After another rest, it happened again (got to 49%, stalled for a few minutes, and then displayed an error). I checked the receipt: TireRack sent the correct 433 MHz sensors. If the sensors were incompatible (or if all four were broken), I assume that the reset process would fail right away instead of proceeding to 49% completion. Am I wrong to assume that? After a search, I found a couple of examples of folks reporting the "failure at 49%" problem. At least one person addressed it by increasing the air pressure on the front tires, which they had initially inflated on the low side (high 20s). But that's not an issue with my setup: I inflated both the front and rear tires to spec. One more thing: I moved from the factory-delivered square set up on my car (225/40 18 on all four corners) to a staggered set up (225/40 18 in front and 245/35 18 in rear). Given that the staggered set up was also a factory-offered configuration for the m235i (in fact, I believe it was the default), I doubt that the change in rear tire size is a factor. But perhaps it's contributing to the problem somehow. I continue to welcome stories and suggestions. I'm hoping to avoid an expensive trip to the dealer. Last edited by E3Ghost; 07-29-2018 at 02:56 PM.. |
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07-30-2018, 06:37 PM | #6 |
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It sounds like the TPMS came from TireRack? What do they say? They are supposedly excellent about fixing problems or defects (I've only had good orders, myself). Also (if you haven't already) try restarting for a second try while still moving, rather than while stopped.
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07-31-2018, 02:43 AM | #7 |
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I recently changed wheels from 18" to 19". I had a similar problem where I would get progress (even up to 99%), but the reading would not show up. I did not however get any error message.
I tried many times to reset the the tyre pressure monitoring system but could not get a reading. The progress would reach various levels, 25%, 49% ,99% for example, but nothing would come up. Driving at different speeds would result in different progress rates. It would seem to finish the calibration, but no data showed up in the display, just "--" for each wheel. What fixed it for me was an ECU reset triggered by recoding using BimmerCode. I had previously coded the display to show Temperature + Pressure instead of the default Pressure only. I went in on BimmerCode (Head unit or something I think) and switched back to Pressure only, thinking that maybe these TPM sensors did not support temperature. I coded it in, switched the ignition off and back on to set it, reset the Tyre Pressure Monitor and drove off. Bingo. I got pressure readings after only a few hundred metres. So now I had Pressure. I wanted to check that in fact it was the temperature messing things up, so I went back in with the BimmerCode app and switched on Temperature + Pressure again. Coded it in (the Display head unit resets) , cycled the the ignition... Bam! Temperature + Pressure displayed, no problems since. Last edited by Sonertial; 07-31-2018 at 02:46 AM.. Reason: Clarity |
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10-16-2018, 11:02 AM | #8 |
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Just a quick thought on this topic- I have ordered new wheels and will collect them later this week and then put new tyres on. I plan to keep the original wheels and use one as a spare, just thinking of leaving the original sensors on the BMW wheels and running without the sensors on my new set up. Is there any problem due to crop up doing this other than the low pressure warning light.
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10-16-2018, 12:01 PM | #9 | |
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10-16-2018, 12:33 PM | #10 |
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10-16-2018, 01:01 PM | #11 | |
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10-17-2018, 11:21 AM | #12 | |
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10-17-2018, 11:41 AM | #13 |
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10-15-2019, 02:18 PM | #14 | |
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