Super sensitive TPMS?
Thread Starter
Member
Joined: Jul 2015
Posts: 139
Likes: 36
2017 GLS 550
Super sensitive TPMS?
Hey all, I should have probably included this in my other thread, but a friend with a 507 is having an issue with the TPMS warning her about low tire pressures every couple weeks. When I check the car out, the pressures are down by at most 2 PSI, is the system really that sensitive? Is there any way to change that? It has been pretty hot here in Phoenix so I can see how the pressure probably changes a lot going from sitting in the cool garage all night and then driving in the 115 degree heat.
When she gives me the car to take a look at it, the tires are *mostly* hot, so I over-inflate them a little on purpose thinking that they will drop a little once they cool down, but what do you guys recommend?
When she gives me the car to take a look at it, the tires are *mostly* hot, so I over-inflate them a little on purpose thinking that they will drop a little once they cool down, but what do you guys recommend?
Member
Joined: Oct 2014
Posts: 150
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W204 C63 Bone Stock; E36 M3 Supercharged 400WHP; X5 parts eater
You can reset the reference value to use current pressure as new reference
values.
http://www.tpmsdirect.com/Mercedes_B...dure_a/803.htm
values.
http://www.tpmsdirect.com/Mercedes_B...dure_a/803.htm
Thread Starter
Member
Joined: Jul 2015
Posts: 139
Likes: 36
2017 GLS 550
You can reset the reference value to use current pressure as new reference
values.
http://www.tpmsdirect.com/Mercedes_B...dure_a/803.htm
values.
http://www.tpmsdirect.com/Mercedes_B...dure_a/803.htm
Member
Joined: Feb 2015
Posts: 123
Likes: 1
From: Seattle, WA
2013 C63 P31 coupe
This happens on my car as well and the outside temp doesn't exceed 85 degrees Fahrenheit on most days. I thought it was a bad sensor because similar to yours, it's never off by more than two PSI.
