Tire Temperature
MBWorld Fanatic!
Joined: Nov 2014
Posts: 5,357
Likes: 1,097
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Check the temps when the tires are cold before starting the car in the morning.
If there is still a large difference, try resetting the TPMS system.
If the issue persists, it is time to replace the sensors.
If there is still a large difference, try resetting the TPMS system.
If the issue persists, it is time to replace the sensors.
MBWorld Fanatic!
Joined: Aug 2023
Posts: 3,687
Likes: 1,107
From: MA Coast
W204 2010 C300 4matic Sport M272
Your car shows the temp of the tires?
My W204 only shows each tires psi.
Have you confirmed the temps with a laser thermometer? Check the rim temps, even brake rotor temps.
My W204 only shows each tires psi.
Have you confirmed the temps with a laser thermometer? Check the rim temps, even brake rotor temps.
Out Of Control!!
Joined: Nov 2018
Posts: 11,398
Likes: 5,322
From: San Francisco Bay Area
2019 C63CS
Maybe others can chime in if they are observing the same on the exact same model as yours, but don't worry too much about it. This happens with my '19 C63S Coupe, but in the case of the C63 it's the passenger front tire and it's normal. The cause has been tracked down to a radiator on that side directing hot air towards the passenger side front wheel. The thing to understand about the TPMS sensors when it comes to measuring the tire temperature is that they don't actually measure the compound temperature. They measure the air temperature near the valve, which is about the farthest away from the contact patch that you can get. So other heat sources like the brake discs and as said hot air from radiators in the front can skew the reading. Also the weight distribution affects the tire heat. Driving by yourself, there's more weight on the driver side front, so that tire naturally gets hotter. The more you put on the scale, the hotter it gets relative to the other side.
