Every 2 weeks my tire sensor goes off...Always the same tire... Bad Valve or Tire????
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MBWorld Fanatic!
Joined: Aug 2007
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LOADED 08' C350 & 14' GLK-350 Diamond White (P1, MM, AMG Pkg, Ln Trkng, Htd Sts, Keylss Go)
Every 2 weeks my tire sensor goes off...Always the same tire... Bad Valve or Tire????
Every 2 weeks my tire sensor goes off...Always the same tire... the rear driver's side tire... the pressure goes from about 40 psi where I leave it after filling, all the way down to 26 or 27 psi once after 2 weeks when the tire monitor trips...
Do I have a Bad Valve or a bad Tire????
I am sure if I bring it in, they will say i have a bad tire and that i ran over something so I have to pay for it out of warranty...
But if it takes two weeks after correcting the pressure and resetting the sensors, does it really mean the tire is bad??
seems more like a faulty valve stem if you ask me...
what do you all think???
thanks in advance for responses...!
Do I have a Bad Valve or a bad Tire????
I am sure if I bring it in, they will say i have a bad tire and that i ran over something so I have to pay for it out of warranty...
But if it takes two weeks after correcting the pressure and resetting the sensors, does it really mean the tire is bad??
seems more like a faulty valve stem if you ask me...
what do you all think???
thanks in advance for responses...!
MBWorld Fanatic!
Joined: Mar 2003
Posts: 1,034
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From: Chino Hills, CA
2008 C300 Sport
Every 2 weeks my tire sensor goes off...Always the same tire... the rear driver's side tire... the pressure goes from about 40 psi where I leave it after filling, all the way down to 26 or 27 psi once after 2 weeks when the tire monitor trips...
Do I have a Bad Valve or a bad Tire????
I am sure if I bring it in, they will say i have a bad tire and that i ran over something so I have to pay for it out of warranty...
But if it takes two weeks after correcting the pressure and resetting the sensors, does it really mean the tire is bad??
seems more like a faulty valve stem if you ask me...
what do you all think???
thanks in advance for responses...!
Do I have a Bad Valve or a bad Tire????
I am sure if I bring it in, they will say i have a bad tire and that i ran over something so I have to pay for it out of warranty...
But if it takes two weeks after correcting the pressure and resetting the sensors, does it really mean the tire is bad??
seems more like a faulty valve stem if you ask me...
what do you all think???
thanks in advance for responses...!
Check the tire, you may have a slow leak from running over a nail or something. Those can be patched up at any tire store or repair shop.
Member
Joined: Nov 2007
Posts: 139
Likes: 0
From: SE Penna, USA
2008 C350, 2014 E350, 2015 BMW S1000RR
It's easy to replace the valve stem core yourself to check. Just go to the local auto supply and buy a packet of cores (it should also come with a removal tool). The cores just screw in and out (but when removing the core, keep your head to the side in case the tool slips off it. You don't want the core shooting out under pressure and lodging itself in your eye). You'll lose some pressure removing/replacing the cores, but just do the job where you have access to compressed air and you'll be good to go.
Having said all this, my bet is on a nail/screw in the tire.
Having said all this, my bet is on a nail/screw in the tire.
Super Member
Joined: Jul 2002
Posts: 678
Likes: 1
From: Vancouver WA
'14 GLK250 Diesel
To clarify, each wheel has its own sensor, attached to the valve inside the wheel.
Also, be aware that on another thread, at least one W204 owner has the dealer admitting that there may be a systemic problem with the TPMS, with some revised parts coming somewhere down the line.
We've had no problems, so far, at 6000 miles and 8 months.
Also, be aware that on another thread, at least one W204 owner has the dealer admitting that there may be a systemic problem with the TPMS, with some revised parts coming somewhere down the line.
We've had no problems, so far, at 6000 miles and 8 months.
Last edited by jrct9454; Apr 10, 2008 at 06:39 PM.
