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[ghostofsenna]

Who relies on their TPMS? I keep a tire pressure gauge in my trunk and check every so often (2 - 3 months, or when I switch wheel sets). I am thinking about coding out my TPMS as I am looking to get a new set of tires.

Why? Well, with each set of wheels I collect I have to add the TPMS modules and I feel that I take care of this manually. My car is a 2011 and don't the TPMS module batteries eventually die or wear out? What is there useful life? Hoping I can avoid an unnecessary dash light and a trip to the tire mounter/purchase of another set of TPMS modules.

Any considerations that I am not thinking of?

[AnotherM3]

Thought about it. Macht and Schnell have a module to plug and play. It can't just be coded out from what I researched.

[so0fresh]

ive got mine coded out by Alex@alpine. no issues

[yidgyi]

Got mine coded out when I removed EDC. Just unplug the modules after coding for both TPMS & EDC if I'm remembering correctly.

[codinge90]

Originally Posted by so0fresh

ive got mine coded out by Alex@alpine. no issues

Did you unplug the tpms module before he did the coding?

[ghostofsenna]

Do the TPMS sensors actually wear out? Or is that a rumor I picked up on the forum?

[ghostofsenna]

Macht Schnell TPMS Delete Module: https://www.turnermotorsport.com/p-2...RoC5_UQAvD_BwE

Product Details
Tire Pressure Monitoring System (TPMS) is an electronic system designed to monitor the air pressure inside all the pneumatic tires on all BMWs manufactured since 2006. Within a predetermined pressure level, a RF signal (433mHz) is sent to each of the receivers located in the wheel wells. These systems report an error message to the driver when pressure is low.

Battery-powered Radio Frequency based TPMS have several disadvantages. Batteries eventually become exhausted and represent a maintenance cost to the consumer. Batteries are chemical systems with lifetimes that unfortunately perform very poorly in extreme temperature environments typical of North America and European climates and in aerospace applications. In order to conserve battery life and to conform to various country's communications authority standards for short range radio communications, the power levels of battery powered TPMS are kept very low. As a consequence of these very low power levels, the construction of certain steel belted radial replacement tires and vehicle metallic geometries can block the low power signal transmission paths.

The so-called total cost of ownership for direct systems is much higher than for indirect systems due to battery and wheel changes and broken/damaged parts. Replacement TPMS sensors from your local dealer can be in excess of $300USD/set with the lithium batteries mounted in the sensors with a 5-6 year shelf life. Aftermarket sensors are not generally reliable. For those that have multiple tire sets for the track, this is simply not practical.

This TPMS/RDC Emulation Module installs in less than 15 minutes and will fully emulate a full-pressure TPMS signal. The module can be activated/deactivated by lifting up on the driver’s side window switch for +5 seconds with the key off.

Macht Schnell Macht Schnell TPMS/RDC Emulation Module features:
- The ability to run racing tires/wheels or other environments in which TPMS sensors are not compatible
- Compatible with iDrive and non-iDrive systems
- Easy 15-minute installation process with no wire cutting
- Proper emulation of the TPMS/RDC monitoring system
- No dealer visits or coding required after installation
- Completely removable at any time

[D1ESEL]

Doesn't BPM do remote coding for this?

[so0fresh]

Originally Posted by codinge90

Did you unplug the tpms module before he did the coding?

yeah he did.

[SYT_Shadow]

You can code tpms out yourself

I've removed it from both M3's although I've left it active on the X5

I have like 6 sets of wheels for the M3's. I'm definitely not going to have that many tpms systems floating around!

[The-Traveler]

Could someone send me a picture of how the TPMS screen looks in your iDrive? I have a 2011.5 M3 but it's Canadian and it didn't come with TPMS only RPA. This system knows when you have a flat by comparing rotation speeds of individual wheels.

I know I can code the regular TPMS on but I'm not sure if I need any other modules besides the sensors.

I don't see this as a pain the way you guys do, and I think constant monitoring of pressures for each wheel would be something I want to retrofit.

Thanks.

[ghostofsenna]

Originally Posted by SYT_Shadow

You can code tpms out yourself

I've removed it from both M3's although I've left it active on the X5

I have like 6 sets of wheels for the M3's. I'm definitely not going to have that many tpms systems floating around!

How do you code it out yourself?

Exactly, I am not going to keep adding TPMS to my wheels... pointless for me as well.

[SYT_Shadow]

Originally Posted by ghostofsenna

How do you code it out yourself?

Exactly, I am not going to keep adding TPMS to my wheels... pointless for me as well.

I couldn't tell you... coding is a bit of a PITA, but all the guides are out there!

[codinge90]

Originally Posted by ghostofsenna

How do you code it out yourself?

Exactly, I am not going to keep adding TPMS to my wheels... pointless for me as well.

Coding is the pretty straight forward part if you've handled ncs expert, the difficult part is actually locating the tpms module to unplug. On different years it's in different locations (at least for the e92 3 series, not sure about M3's). Most of the time it's in the trunk liner that's actually kinda hard to get to. But once that's unplugged the actual coding part is pretty easy. There's plenty of guides on the forums

[slicer]

I battled with transferring pressure monitors from wheel to wheel in the past. Finally decided to code it out and life is a lot easier for a guy who has multiple sets of wheels. I used Alex at Alpine. He has done a lot of coding for me and I definitely recommend him.

[TigerTater]

Bumping this. Got new wheels and want to code them out. I have an 09 e90 lci car with the old style sensors and no iDrive anyways so never got much use out of the stock tpms. Any idea where they are located in my year model?

I've seen threads about changing the VO and coding certain parameters...mostly on e90 post and an x series thread

[///M3Fresh]

Originally Posted by TigerTater

Bumping this. Got new wheels and want to code them out. I have an 09 e90 lci car with the old style sensors and no iDrive anyways so never got much use out of the stock tpms. Any idea where they are located in my year model?

I've seen threads about changing the VO and coding certain parameters...mostly on e90 post and an x series thread

The plug is on the passenger side of the car in the trunk, behind the carpet. Its not too difficult to get to. I believe its 2-3 torx screws but if you have tiny fingers you may be able to access the plug. IIRC the module has two plugs and you need to access the one that is towards the front not the one closer to you. Its been a few years since I coded/unplugged mine.

[furry]

Originally Posted by ///M3Fresh

The plug is on the passenger side of the car in the trunk, behind the carpet. Its not too difficult to get to. I believe its 2-3 torx screws but if you have tiny fingers you may be able to access the plug. IIRC the module has two plugs and you need to access the one that is towards the front not the one closer to you. Its been a few years since I coded/unplugged mine.

Do you know where it would be located for a 2011 E90? I heard its somewhere near the rear subframe but not certain. I've been having intermittent issues and dont feel like chasing down TMPS sensors between 2 sets of wheels and buying a new module for a system that doesnt even read out tire pressures on the iDrive.

Thx

[///M3Fresh]

Originally Posted by furry

Do you know where it would be located for a 2011 E90? I heard its somewhere near the rear subframe but not certain. I've been having intermittent issues and dont feel like chasing down TMPS sensors between 2 sets of wheels and buying a new module for a system that doesnt even read out tire pressures on the iDrive.

Thx

From memory again, its should be in the rear passenger fender. Just covered up by a cover with two plastic pins. For reference of what the newer "cheap" module looks like. And the bracket that holds its. Much easier to get to IMO.

http://www.realoem.com/bmw/enUS/show...35#36136794373

[furry]

thanks I'll take a look there!

[Ngilbe36]

Originally Posted by furry

Do you know where it would be located for a 2011 E90? I heard its somewhere near the rear subframe but not certain. I've been having intermittent issues and dont feel like chasing down TMPS sensors between 2 sets of wheels and buying a new module for a system that doesnt even read out tire pressures on the iDrive.

Thx

"Chasing down TPMS sensors" is not actually that difficult. I have one set of 220Ms from a 2008 and another from my 2011. $200 from tirerack and you can just swap the new TPMS onto the old wheels and it all syncs up automatically. PM me if you need more details.

[tdott]

Best option is to code out RDC (TPMS) and remove the module.

Then code to enable FTM (Flat Tire Monitor) which uses the abs sensors. Rest of the world uses FTM, only US law requires the TPMS sensors in the wheel.