TIRE PRESSURE ON C300
09-25-2016, 04:36 PM
#51
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Location: Milwaukee, WI
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2010 C300 4MATIC........ 2011 C63 AMG.............. 2015 CLS400 4MATIC.....
C300 sport.
We just had some temperatures in the upper 30's and my tire pressure warning lights came on. I run 28 in front, 32 in rear.
With cold temps, they drop to 23 and 25 respectively. Within 15 or 20 minutes of driving, they slowly climb back up.
Is this an actually pressure problem with the computer, or is the cold temperatures impacting them this much?
thanks!
We just had some temperatures in the upper 30's and my tire pressure warning lights came on. I run 28 in front, 32 in rear.
With cold temps, they drop to 23 and 25 respectively. Within 15 or 20 minutes of driving, they slowly climb back up.
Is this an actually pressure problem with the computer, or is the cold temperatures impacting them this much?
thanks!
I had the same situation with same pressures a while ago.
09-25-2016, 06:09 PM
#52
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2011 c300 sport
09-26-2016, 11:50 AM
#53
Super Member
It is the cold weather that is dropping the pressure. When the temperature changes significantly, like 10-20 degrees, it isn't unusual for the air pressure to change. Just like you noticed as you are driving the pressure increases because the friction from driving heats up the tire a bit and raises the pressure a couple pounds. Then when you let the sit a few hours and get back in the pressure is less because the temperature of the tire went down. Just add a little air now that it is getting colder by you.
