Mercedes G and GL Class Mercedes G500 and GL450 SUV.

Tire pressure

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Old Jun 15, 2020 | 09:25 AM
  #1  
jjjr's Avatar
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Default Tire pressure

Quick question for all you MB experts out there.
We have a 2016 GLE-350. Not a 4Matic or Bluetec, the base model.
The tire pressure plackard on the door jamb shows 45/46 psi for front and rear.
The plackard inside the gas fill door shows 35/35 for front and rear.
Which one is correct?
TIA!
 
Old Nov 10, 2020 | 03:46 PM
  #2  
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I had same question for my 2020 GLE350, Called MB customer care and they advised using pressure from gas fill door
 
Old Nov 18, 2020 | 11:48 AM
  #3  
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Updating on my previous post,:I am afraid your recommendation is not correct due to following:

I setthe pressures to values at 34/34 which is 2 PSI more than indicated fuel door label (32F / 32R) and it triggered a low pressure warning notice on display panel while driving long distance and the tire were at operating temperature and indicating 38/38 on display panel (hot tire pressure).

Please make a note of following and respective pictures attached.

Door label, normal load pressures (PSI) 32F / 32R , Max load PSI 39F / 50R

B Pillar Label, Normal load PSI 36F / 44R , Max load 39F / 50R

When I reset the pressure to B pillar normal load specification the low pressure warning notice goes away.

Conclusion, system monitoring set points are calibrated to 36F / 44R respectively and setting tire pressure to fuel door label values does not work..

I have asked M.B. technical team to review and revert, appears there is incorrect label attached to fuel door which could pose a safety risk due to low pressure.


 
Old Nov 20, 2020 | 05:06 PM
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Originally Posted by Alfa Tech.
I had same question for my 2020 GLE350, Called MB customer care and they advised using pressure from gas fill door
I set the pressure to 32/32 per label on fuel door and it triggered the low tire pressure on main display, reset it to 36/44 stated on B Pillar label and the low pressure notice went away.
Called Mercedes and they said recommended pressure on fuel door is for only one person in the car and anything more than one person should use B Pillar stated pressure.

Bottomline:
22/32 is way too low a pressure, its below pressure sensing set limits and have to use 36F/44R PSI
For Max. load the pressure setting is 39F/50F PSI
Looks like M.B. has wrong label on fuel door and someone from their Technical review side needs to look into the matter and correct it

 
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