amusa

I have a 2016 GLE400 equipped with the 20" OEM rims. Can some one explain to me why they have different pressure for the same wheel and tire set up and why the GLE350 has more PSI then the GLE400?

2016 Mercedes-Benz GLE350 Tire Pressure
Recommended tire inflation for 2016 Mercedes-Benz GLE350 should be 45 psi for front tires and 48 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
255/50R19 107H 45 psi 48 psi
265/45R20 104Y 45 psi 48 psi
265/45R20 108H 45 psi 48 psi


2016 Mercedes-Benz GLE400 Tire Pressure
Recommended tire inflation for 2016 Mercedes-Benz GLE400 should be 37 psi for front tires and 46 psi for rear tires.

Tire Size Front Tire Pressure Rear Tire Pressure
265/40R21 105Y 37 psi 46 psi
265/45R20 104Y 37 psi 46 psi
265/45R20 108H 37 psi 46 psi

SUV John

Go by the placard on the fuel door. Tire pressures are separated by normal and maximum load ranges. As covered in other topics, some change tire pressure based on past experience, tires installed, and the typical load carried, to name a few.

Normal ranges are usually the same and the rear tires have a higher psi range for load carrying capability such as towing (the maximum load category).

amusa

I understand that. I don't understand why the GLE350 has a much higher pressure then the GLE400 on the same size rim and tire set up.

SUV John

Things like Gross Axle Weight Rating (GAWR), Gross Vehicle Weight (GVW), Gross Vehicle Weight Rating (GVWR), and suspension as equipped would be other factors why there are differences. Otherwise, it would take digging into for the bottom line. I just know I don't need a 17+ foot length pickup truck to tow a camper, the rest is "magic"!

amusa

I never thought about the Gross weights. I'm going to look into it deeper and compare the two vehicles. To get a better understanding. The only theory I can imagine that the GLE400 weigh a little more this is why it use less pressure in the tires? Why the GLE350 need more pressure in the tire to compensate?

eric1972

AMUSA -- would you mind taking a pic of the label on your fuel filler door? I'd love to see the numbers, as mine is missing (also have 2016 GLE400 with 20" wheels). Thank you!

Eric

BACnMercedes

2016 GLE 400 fuel door with 20 wheels.

eric1972

BACnMercedes -- Thank you very much for the pic! I've been looking for it for years now!

Eric

lakshkalra

I have been told by Mercedes technicians that the tire pressure values on the fuel door are wrong on the GLE 350 cars. The service tech told me to look at the pressure values on the door jamb sticker, which are significantly higher. Definitely check both and talk to a dealer and find out which is correct for the 400 with your wheel and tire setup.

chassis

I air up to 50psi cold, it eliminates uneven tread wear, increases tread life and fuel economy, and does not degrade ride quality (my opinion).

amusa

Sorry, I had allot going on. I'm just seeing this now.

50psi cold, way to much in my opinion.

I went with the fuel door for normal load (cold)

DMWelk

Originally had our GLE 400 at 32 psi (front) and 33 psi (rear) for normal load based on the fuel door recommendation. I read through the manual and it advises to go off of the placard on the driver's door pillar, which is 45 psi (front) and 48 psi (rear) under maximum load. So I split the difference between the two. So I have all four tires at 40 psi cold. I prefer a softer ride. Anything above 45 psi is to stiff of a ride for me.

RA051523

I cannot understand how tyre pressures can be varied SO much...here in the UK we can be fined if tyres are over/under inflated by more than 10% of the rated pressure.....but with such an allowable variation how would they know????....what pressure would they use??? ......we dont all have access to a weighbridge to check the pressures against the laden weight....and this applies to all makes of modern car
manufacturers say you can use this pressure for a softer ride and that pressure for more mpg etc....confusing !

caspertm

The opposite; GLE 400 has a 3.0L V6 whilst GLE350 has a 3.5L V6

lakshkalra

I agree, 50 is a lot! However, I would seriously caution against the fuel door values. Using these pressures will wear out your tires and give you worse fuel economy (speaking from experience). Look at the owner's manual! It says to use the values on the door jamb, and Mercedes techs have told me this as well (because the values on the fuel door are inaccurate apparently). The tires I have on my car currently have a max PSI of 50. Tire manufacturers only give you a max PSI and recommend that you fill them up to the value given by the manufacturer. I know you've got a 400, but my 350 door jamb values recommend 45 in the front and 48 in the back. 48 is kind of pushing it for me so I am doing 43-45 in all of the tires.

lakshkalra

In the UK, how can they tell if your tires are under or overinflated? I have also heard that in the UK you can be fined for tires with low tread, but who enforces these rules? Is it when you get your MOT done? But you are so right, it is really confusing and our regulations here in the US should be stricter to promote safe tire pressures.

amusa

I went with 32 front and 33 rear (Cold) in my 16 GLE400.

GLE350 will take more tire psi then the GLE400 due to curb weight. I did compare both vehicles.

CENTRALFL

Original tires on my 2016 GLE 350 are 108H. Can I put 104H on the front ?

chassis

I would put OEM spec tires on the vehicle. Furthermore I would put 4 identical tires on the vehicle.

The 104 load index tire carries approx 15% less weight than the 108.

https://www.tirebuyer.com/education/...e-descriptions

RA051523

have just changed the car for a W167 2020 GLE 300D....and the pressures are even lower at 29psi!

threeMBs

I agree and would do the same, however GLE43 (a heavier SUV than GLE350) is speced with 105 load tire (265/40-21 105Y) when equipped with 21" wheels. So if GLE43 can do with 105 load tire, GLE350 can certainly be 100% safe with 104 load (provided it is not used for serious off-roading). If 104 load tire is used, I also would put 5psi of addition pressure on top of whatever GLE350's sticker is calling for.

CENTRALFL

But how to find the OEM rating on mine? Looked everywhere and could not find anything related to the LOAD rating. See my door specs attached

threeMBs

In the US for all W166 ML/GLE with 265/45-20 tires, MB is using tires with only 108 load. 265/45-20 tires with 104 load are used on much lighter X253 GLC line.