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GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

Tire PSI?

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Old Nov 2, 2007 | 10:38 PM
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Evil Buddha's Avatar
Evil Buddha
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GL 320 CDI
Question Tire PSI?
Just picked up a new GL 320 for the wife this week. What tire PSI are you guys running? Door says 32F and 38R. That seems a little low; it has Cont's.
Love the car.
Thanks
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Old Nov 2, 2007 | 11:24 PM
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BeanCounter
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GL450 (Alabaster White/Black Interior)
I run mine at 34 in the front and 40 in the rear. It gives me a little "grace period" for any air loss and I have been told running a little more air pressure can get you a little better gas mileage.
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Old Nov 2, 2007 | 11:32 PM
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Newbie_2_MB
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2014 GL 450
I run the same as Bean Counter. I have a slow leak in my right front and in 13,000 miles, have had to fill it twice when the low pressure alarm went off.
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Old Nov 2, 2007 | 11:45 PM
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BeanCounter
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GL450 (Alabaster White/Black Interior)
Originally Posted by Newbie_2_MB
I run the same as Bean Counter. I have a slow leak in my right front and in 13,000 miles, have had to fill it twice when the low pressure alarm went off.
Jen, my tires have held the air pretty well so far. My only issue is that the check tire pressure warning goes off all the time when I get it near a cell phone tower (we have one in the back corner of my office parking lot). I am told this is to be expected. Oh well........
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Old Nov 3, 2007 | 12:18 AM
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Newbie_2_MB
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From: Southern California
2014 GL 450
Originally Posted by BeanCounter
Jen, my tires have held the air pretty well so far. My only issue is that the check tire pressure warning goes off all the time when I get it near a cell phone tower (we have one in the back corner of my office parking lot). I am told this is to be expected. Oh well........
That would drive me nuts! The pressure was at 26 when I checked it, so it was truly down. I just have to remind myself to check it every now and again.
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Old Nov 3, 2007 | 11:27 PM
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06 CLS500
if you look on the fuel lid, pressure is 32-F and 32-R unless you have a full load.
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Old Nov 4, 2007 | 06:10 PM
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GL 320 CDI
Thanks for the info.
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Old Nov 4, 2007 | 07:54 PM
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mbslk350
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2021 GLS450, 2015 E250BT 4Matic, 2007 GL320CDI, 2005 SLK350, 2001 SLK320
Originally Posted by HoustonRider
if you look on the fuel lid, pressure is 32-F and 32-R unless you have a full load.
With that in mind, I set mine to 32-F and 35-R since I often have a partially-full load with wife, self, 2 dogs and a weekend's supply of cargo. I figured that splitting the difference between 32 and 38 would be an OK compromise.
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Old Nov 5, 2007 | 04:14 PM
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1992 500E, 2006 E500, 2007 GL 450
I run 35lbs all around. Higher pressure firmed up ride a bit with no noticeable harshness. I run same pressure all around to help reduce understeer.
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after the compressor was replaced, truck seems lower?

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