Low tire pressure warning
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MBWorld Fanatic!
Joined: Jan 2009
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From: Northern NJ
GLK 350 / Porsche 993
Low tire pressure warning
So temperatures fell a bit and it's been raining. Just like a year ago during this time tire pressure system starts giving warnings.
Last year that happend a coulpe of times, but the only warning was on MFD saying check tire pressure.
Yesterday I started driving (cold and rainy) and MFD turned red and the yellow sing came on as well (i thought i got flat tire or something). Haven't check pressure yet, but tires seemed fine (no flats). Wondering if amount of tire pressure loss makes warning different. I wish I had new system that tells you actuall tire pressure in each tire (I think later 2010 models have it).
Last year that happend a coulpe of times, but the only warning was on MFD saying check tire pressure.
Yesterday I started driving (cold and rainy) and MFD turned red and the yellow sing came on as well (i thought i got flat tire or something). Haven't check pressure yet, but tires seemed fine (no flats). Wondering if amount of tire pressure loss makes warning different. I wish I had new system that tells you actuall tire pressure in each tire (I think later 2010 models have it).
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Joined: Mar 2009
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GLK 350 AWD Steel Grey/Black Interior (3/18/09); E63AMG (5/5/2011)
Yep this year I only had the check tire pressure warning. May be due to the temp drop as you said. Had to top it off and I haven't seen anything pop up lately.
Last year I got the whole panel turning red with chime as I was driving ... turns out I had a puncture in my tire which caused the tire to lose like 10psi within a few days. It could be related to the actual pressure difference but couldn't find anything in the manual.
Last year I got the whole panel turning red with chime as I was driving ... turns out I had a puncture in my tire which caused the tire to lose like 10psi within a few days. It could be related to the actual pressure difference but couldn't find anything in the manual.
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From: www.Traben-Trarbach.de
MPG+ ROLFCOPTER
So temperatures fell a bit and it's been raining. Just like a year ago during this time tire pressure system starts giving warnings.
Last year that happend a coulpe of times, but the only warning was on MFD saying check tire pressure.
Yesterday I started driving (cold and rainy) and MFD turned red and the yellow sing came on as well (i thought i got flat tire or something). Haven't check pressure yet, but tires seemed fine (no flats). Wondering if amount of tire pressure loss makes warning different. I wish I had new system that tells you actuall tire pressure in each tire (I think later 2010 models have it).
Last year that happend a coulpe of times, but the only warning was on MFD saying check tire pressure.
Yesterday I started driving (cold and rainy) and MFD turned red and the yellow sing came on as well (i thought i got flat tire or something). Haven't check pressure yet, but tires seemed fine (no flats). Wondering if amount of tire pressure loss makes warning different. I wish I had new system that tells you actuall tire pressure in each tire (I think later 2010 models have it).
Member
Joined: Jan 2009
Posts: 102
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From: Ottawa, Ontario, Canada
2010 GLK
TPMS
You Americans got the good TPMS because NHTSA mandated tire pressure monitoring for the TREAD Act.
USA = direct measure at the valve stem giving actual psi / bar
Canada = indirect measure we got the cheap tire rotation "estimate" via the ABS sensor. I tested mine and had to drop the tire pressure around 20 psi to get the dash warning light on...
Notes from an engineer's diary
USA = direct measure at the valve stem giving actual psi / bar
Canada = indirect measure we got the cheap tire rotation "estimate" via the ABS sensor. I tested mine and had to drop the tire pressure around 20 psi to get the dash warning light on...
Notes from an engineer's diary
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CLS63, GLK350
Thread Starter
MBWorld Fanatic!
Joined: Jan 2009
Posts: 2,780
Likes: 115
From: Northern NJ
GLK 350 / Porsche 993
... only kidding! What do you do there?
Last edited by NYCGLK; Oct 23, 2010 at 11:51 AM.
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Joined: Apr 2010
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From: Tromsø, 69° 41' N
2010 GLK 220CDI 4M BlueEFFICIENCY
An APA note:
"It’s important to adjust tire pressure in the autumn, because the drop in temperature causes the air pressure in tires to go down significantly: tire pressure is reduced by 1.7 PSI (0.12 bar) for every drop of 10°C in temperature."
