What tire pressures are you running on yout GL450 ?
08-01-2018, 03:44 PM
#1
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What tire pressures are you running on yout GL450 ?
Just curious what everyone's tire pressures are ?
Door sticker says 32 front and 38 rear but when i bought vehicle ive left as is at 41 rear and 38 front
Door sticker says 32 front and 38 rear but when i bought vehicle ive left as is at 41 rear and 38 front
08-04-2018, 06:38 PM
#5
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08-04-2018, 06:39 PM
#6
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mefferso (08-11-2018)
08-04-2018, 08:25 PM
#7
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Eric is mentioning tread depth because different psi causes a different contact patch.
It can cause uneven tire wear to run a lower psi as I found out.
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08-04-2018, 10:06 PM
#8
MBWorld Fanatic!
What other's run in their truck doesn't necessarily correlate to what you should run. If you want a softer ride, stay to the base recommendation. When you add more weight, give it a few more pounds. I run, give or take, what the manufacturer states to run on the fuel filler door.
A tread wear indicator (and religious use of it) is a great tool to help maximize tread life. Before you question someone that is trying to help by offering some knowledge, do some research. He was trying to offering you some education and the ability to get the most out of your tires, based on YOUR use... not someone else's.
Last edited by DennisG01; 08-04-2018 at 10:17 PM.
08-05-2018, 12:12 AM
#9
MBWorld Fanatic!
No, you simply mentioned "door"... which to most would mean the driver's door jamb. If you meant fuel filler door, you should have been more specific. I was simply offering another spot to look that gives more than one recommendation (and thought that might be helpful)... ie; based on weight in the car.
What other's run in their truck doesn't necessarily correlate to what you should run. If you want a softer ride, stay to the base recommendation. When you add more weight, give it a few more pounds. I run, give or take, what the manufacturer states to run on the fuel filler door.
A tread wear indicator (and religious use of it) is a great tool to help maximize tread life. Before you question someone that is trying to help by offering some knowledge, do some research. He was trying to offering you some education and the ability to get the most out of your tires, based on YOUR use... not someone else's.
What other's run in their truck doesn't necessarily correlate to what you should run. If you want a softer ride, stay to the base recommendation. When you add more weight, give it a few more pounds. I run, give or take, what the manufacturer states to run on the fuel filler door.
A tread wear indicator (and religious use of it) is a great tool to help maximize tread life. Before you question someone that is trying to help by offering some knowledge, do some research. He was trying to offering you some education and the ability to get the most out of your tires, based on YOUR use... not someone else's.
Now I only have the door label...
Which says 32 all around or 38 rear with heavy loads.
Which is hardly enough imo.
I got horrible outside tire wear with 32psi...now that I've set it up to get 34-36 it's made a world of difference to tire wear and comfort as well.
08-05-2018, 09:00 AM
#10
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I don't know about your gl...but the label of mine in the filler cap was removed by the dealer during a scheduled service visit due to a tsb about discrepancies in information about the tire pressure from the door and filler cap.
Now I only have the door label...
Which says 32 all around or 38 rear with heavy loads.
Which is hardly enough imo.
I got horrible outside tire wear with 32psi...now that I've set it up to get 34-36 it's made a world of difference to tire wear and comfort as well.
What size rims do you have? Run flats?
That's odd about the removal of the filler door label. I can't understand why it DOESN'T make sense to change the PSI based on load in the car. I wonder if it was more due to some people being confused about two different labels and MB just decided to "make it easy"? I dunno.
Last edited by DennisG01; 08-05-2018 at 09:02 AM.
08-05-2018, 12:03 PM
#11
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No idea why.
I know it used to be there and then all of a sudden it wasn't till I asked on a service visit.
19" pirreli scorpion verde all season plus v rated.
I like the tires and i run 19" oem winters so they get rotated often enough at the end of the seasons.
It seems to like 34-36 psi cold in the fronts and 38-40psi cold in the rear......I mean...a tire has its largest load rating at a higher psi.....but that probably isn't common knowledge.
ill take a picture of the door jamb and empty filler cap thing later.
I know it used to be there and then all of a sudden it wasn't till I asked on a service visit.
19" pirreli scorpion verde all season plus v rated.
I like the tires and i run 19" oem winters so they get rotated often enough at the end of the seasons.
It seems to like 34-36 psi cold in the fronts and 38-40psi cold in the rear......I mean...a tire has its largest load rating at a higher psi.....but that probably isn't common knowledge.
ill take a picture of the door jamb and empty filler cap thing later.
08-05-2018, 12:37 PM
#12
MBWorld Fanatic!
No idea why.
I know it used to be there and then all of a sudden it wasn't till I asked on a service visit.
19" pirreli scorpion verde all season plus v rated.
I like the tires and i run 19" oem winters so they get rotated often enough at the end of the seasons.
It seems to like 34-36 psi cold in the fronts and 38-40psi cold in the rear......I mean...a tire has its largest load rating at a higher psi.....but that probably isn't common knowledge.
ill take a picture of the door jamb and empty filler cap thing later.
I know it used to be there and then all of a sudden it wasn't till I asked on a service visit.
19" pirreli scorpion verde all season plus v rated.
I like the tires and i run 19" oem winters so they get rotated often enough at the end of the seasons.
It seems to like 34-36 psi cold in the fronts and 38-40psi cold in the rear......I mean...a tire has its largest load rating at a higher psi.....but that probably isn't common knowledge.
ill take a picture of the door jamb and empty filler cap thing later.
I'm getting ready to do a rotation... maybe I'll try a little higher in the front for the next rotation, watch them even closer, and see how it does (in regards to feathering, that is).
08-05-2018, 12:53 PM
#13
MBWorld Fanatic!
I was a bit surprised when I went to go look at the sticker. It says nothing about load now. I must have been thinking about the old label that did have a nice graphics of an empty car and one with multiple people inside with different psi numbers.
The current sticker only says 32 front and 38 rear....
08-05-2018, 02:00 PM
#14
MBWorld Fanatic!
I was a bit surprised when I went to go look at the sticker. It says nothing about load now. I must have been thinking about the old label that did have a nice graphics of an empty car and one with multiple people inside with different psi numbers.
The current sticker only says 32 front and 38 rear....
08-07-2018, 10:21 PM
#15
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2007 GL450
Here, they even sell $4 digital depth gauges now, direct to your door from lovely Shenzhen:
https://www.ebay.com/itm/113184254847
Doing this, I arrived at cold inflation pressures of 35 front, 40 rear. So far away from the idio-sticker, I'm confused as to where those numbers even came from.
Last edited by eric_in_sd; 11-14-2018 at 10:26 AM.
08-10-2018, 01:42 PM
#16
Since we're discussing tires. I have the equipment to lift my vehicle and do my own tire rotation.
Last I had it done for my 2010 GL450, x164 at the local tire shop the reading of my front right showed up on my rear left/ vice versa.....
Any way on how to correct it without going to the dealership or having the tire go in original place?
It isn't much of a issue but is there a way on how to correct this without having the dealer reprogram the sensor to match the correct side?
Last I had it done for my 2010 GL450, x164 at the local tire shop the reading of my front right showed up on my rear left/ vice versa.....
Any way on how to correct it without going to the dealership or having the tire go in original place?
It isn't much of a issue but is there a way on how to correct this without having the dealer reprogram the sensor to match the correct side?
08-10-2018, 02:50 PM
#17
MBWorld Fanatic!
Sure. That's easy!
Just go to the screen that has the tire pressure monitor indicator and hold the r button in the middle of the instrument cluster till it resets and relearns.
Cheers!
Just go to the screen that has the tire pressure monitor indicator and hold the r button in the middle of the instrument cluster till it resets and relearns.
Cheers!
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MB+ (08-10-2018)
08-10-2018, 02:59 PM
#18
I was always under the impression that the R- button was to reset mileage only. Having learned this new thing I sincerely thank you!
Just one more questions please; if on that screen it will reset/relearn only the tire info. Will not reset other things such as the clusters or mileage, correct? :-) Appreciate your feedback.
08-10-2018, 03:02 PM
#19
MBWorld Fanatic!
WHAT!!!!!!!!!!! Was it really that easy?!!
I was always under the impression that the R- button was to reset mileage only. Having learned this new thing I sincerely thank you!
Just one more questions please; if on that screen it will reset/relearn only the tire info. Will not reset other things such as the clusters or mileage, correct? :-) Appreciate your feedback.
I was always under the impression that the R- button was to reset mileage only. Having learned this new thing I sincerely thank you!
Just one more questions please; if on that screen it will reset/relearn only the tire info. Will not reset other things such as the clusters or mileage, correct? :-) Appreciate your feedback.
Unless you want to reset the other stuff 😏
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MB+ (08-10-2018)
08-12-2018, 08:20 PM
#20
32 is good for the 19s... 34 for 20 and 36 for anything bigger.
If follow the sticker on the door you will overinflate the rears badly... unless you drive around fully loaded or towing
If follow the sticker on the door you will overinflate the rears badly... unless you drive around fully loaded or towing
