Adding TPMS
My uncle plans to import a 2011 Mercedes E550 from Canada to the USA and that requires a Letter of Compliance from MB Canada. Now the problem is that, they're stating its not eligible for importing due to it not having TPMS and has TPLS instead.
The TPLS runs off the speed rotation off the wheel to determine if the tire is under deflated.
Is there a way to retrofit and add proper TPMS system that will display in the instrument cluster? I've read it's been done in the past with older model vehicles. They've simply added the module, sensors and some programming. Any additional insight or part numbers/guides would be helpful.
Any help is greatly appreciated.
Thank you,
do you have wheels with tpms sensors installed?
if not you should get them (right frequency ofocarse , because they have multiple) and you should be good to go.
unless things are not so simple
Last edited by RA72825; Oct 10, 2018 at 04:37 PM.
I don't know about canada, but I think all new cars sold in the US (after a certain date) are required to have TPMS. I think it was 2007 or 2008.
if someone knows of an aftermarket system, I would be interested too. Oem is preferable.
It’s frustrating that this is what is keeping me from importing it.




That said TPMS exist for about 20 years and I still have an add-on system I used 15 years ago on motorhome. Such systems today cost like $200-300
Question is would US law accept add-on system, but sometimes it is better not to ask.
If you install such system and go to test station, the technician might sign off existing system without additional comments.
Last edited by kajtek1; Oct 10, 2018 at 07:51 PM.
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Thanks a bunch!!
With these type of system, you don't need to have them reinstall the tire stem and remount the tire.
Thanks!! Will check tomorrow if the car is pre-wired. If it is, going to attempt this retrofit!





