Aftermarket TPMS?
Thread Starter
Newbie
Joined: Jun 2022
Posts: 8
Likes: 0
From: Calgary, Alberta
2018 E400
Aftermarket TPMS?
Hi all, I was wondering if anyone could recommend an aftermarket TPMS that I could use on our 2018 E400 Coupe? I was thinking one that reports to a phone app and the type that screws onto the valve stem would be the way to, this way I can use it on each set of wheels. Any advice is appreciated. Thanks.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Hi all, I was wondering if anyone could recommend an aftermarket TPMS that I could use on our 2018 E400 Coupe? I was thinking one that reports to a phone app and the type that screws onto the valve stem would be the way to, this way I can use it on each set of wheels. Any advice is appreciated. Thanks.
Thread Starter
Newbie
Joined: Jun 2022
Posts: 8
Likes: 0
From: Calgary, Alberta
2018 E400
Apparently this car never had them. The dealer tells me that its a passive system and takes wheel speed from the ABS sensors. It only works once the air pressure is low enough to cause the one wheel to turn faster than the others. The dealer says that this car isn't capable of reading actual tire pressure sensors like what an active system would have so there is no point in installing a set.
Our other vehicles have had active TPMS and have let us know if a tire is low so I can deal with it before it lets us down. This why I'm looking for an aftermarket solution.
Our other vehicles have had active TPMS and have let us know if a tire is low so I can deal with it before it lets us down. This why I'm looking for an aftermarket solution.
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
Interesting -- Canada and the US are largely harmonized in safety and emissions, but TPMS is apparently an exception.
Schrader makes a retrofit kit for non-equipped TPMS vehicles -- https://www.tpms.com/Schrader-TPMS-R...g&gad_source=1
Schrader makes a retrofit kit for non-equipped TPMS vehicles -- https://www.tpms.com/Schrader-TPMS-R...g&gad_source=1
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Out Of Control!!
Joined: Apr 2019
Posts: 11,964
Likes: 6,806
From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
DISCOUNT LUXURY
Stripped Mercedes...
AM-FM radio,
plastic seats
no TPMS,
no navi,
Same hourly repair charge
AM-FM radio,
plastic seats
no TPMS,
no navi,
Same hourly repair charge
Last edited by CaliBenzDriver; Apr 18, 2025 at 02:01 PM.
Thread Starter
Newbie
Joined: Jun 2022
Posts: 8
Likes: 0
From: Calgary, Alberta
2018 E400
I forgot to mention that the dealer says that none of the cars in our model year have active TPMS if they were originally equipped with run-flats. Not sure if that was/is just a Canadian thing or if he was just feeding me a line...
I checked out the Schrader kit but I'm looking for one that reports to an android, mostly because I don't like the look of added gadgets.
I checked out the Schrader kit but I'm looking for one that reports to an android, mostly because I don't like the look of added gadgets.
MBWorld Fanatic!
Joined: Jun 2021
Posts: 3,119
Likes: 1,355
From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
When I was a kid we had this thing called a tire pressure gauge. You would take the cap off take out the little thing and then watch the indicator slide out of its butt. AND WE LIKED IT!!!!
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
I forgot to mention that the dealer says that none of the cars in our model year have active TPMS if they were originally equipped with run-flats. Not sure if that was/is just a Canadian thing or if he was just feeding me a line...
I checked out the Schrader kit but I'm looking for one that reports to an android, mostly because I don't like the look of added gadgets.
I checked out the Schrader kit but I'm looking for one that reports to an android, mostly because I don't like the look of added gadgets.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
TPMS has been mandatory in the US for all cars since and including model year 2008.
I'm not sure this atricle is accurate since I though had its own controller and operated separately from the ECU (called PCM in the article). But I could be wrong.
https://www.counterman.com/tpms-its-...ng,1%2C%202007.
I'm not sure this atricle is accurate since I though had its own controller and operated separately from the ECU (called PCM in the article). But I could be wrong.
https://www.counterman.com/tpms-its-...ng,1%2C%202007.
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
There are Android reporting systems made for trailers that might work for you.
https://www.amazon.com/dp/B01MF534Z5...7E5OLQ67NVPFZA
https://www.amazon.com/dp/B01MF534Z5...7E5OLQ67NVPFZA
MBWorld Fanatic!
Joined: Oct 2019
Posts: 5,155
Likes: 1,769
From: Colorado
G550
There might be some trailer systems that use integrated sensors (mounted from inside the tire/wheel). I would prefer paying the installation fee for this rather than having the sensor mass mounted on the valve stem on the outside. But you're right -- a tire is a tire to a TPMS sensor.
Thread Starter
Newbie
Joined: Jun 2022
Posts: 8
Likes: 0
From: Calgary, Alberta
2018 E400
So I've done some more digging and it looks like an TPMS is not mandatory in Canada. Weird because I don't know off hand of any newer vehicles up here that don't have it except for our E400 coupe... It makes me wonder what the mindset was with Mercedes-Canada to offer a car like this and then cheap out on an active TPMS.
Going forward I'll look into a TPMS for RV trailers.as was suggested. Thanks!
Going forward I'll look into a TPMS for RV trailers.as was suggested. Thanks!
Super Member
Joined: Dec 2013
Posts: 630
Likes: 177
From: SW Ontario Canada
2020 GLS580, 2023 Corvette Z06
So I've done some more digging and it looks like an TPMS is not mandatory in Canada. Weird because I don't know off hand of any newer vehicles up here that don't have it except for our E400 coupe... It makes me wonder what the mindset was with Mercedes-Canada to offer a car like this and then cheap out on an active TPMS.
Going forward I'll look into a TPMS for RV trailers.as was suggested. Thanks!
Going forward I'll look into a TPMS for RV trailers.as was suggested. Thanks!
If had to do it again I would just use the TST 507 - I have it on my trailers.
Super Member
Joined: May 2024
Posts: 505
Likes: 123
From: Northern Indiana
2014 c300 w204.080 3.5 v6
Lots of them on here. I've used them on my RV but couldn't tell you the name. They change names so get something that gets good ratings. I'm sure Amazon has these also.
I just found this on AliExpress: $40.34 | Solar/USB Powered Tire Pressure Monitoring System with 4 Sensors Tire Pressure Monitor System LCD Display for RV Sedan SUV Truck
https://a.aliexpress.com/_mrpqozR
I just found this on AliExpress: $40.34 | Solar/USB Powered Tire Pressure Monitoring System with 4 Sensors Tire Pressure Monitor System LCD Display for RV Sedan SUV Truck
https://a.aliexpress.com/_mrpqozR
