What pressure do you set your tires
Thread Starter
MBWorld Fanatic!
Joined: Oct 2015
Posts: 1,583
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2019 E300
What pressure do you set your tires
Hi everyone, new to the W213 forum, had a few Mercedes in the pass. I was looking at the factory psi settings at the gas door, 32 psi seem awfully low for the 19 inch 40 series tires. I decided to set them to 33 psi and the ride is on the stiff side for a Mercedes but not uncomfortable. These Perilli 40 series tires’ sidewall looks shorter than my last car with the same size tire but non-runflat which recommends 35 psi. I am thinking the higher psi will protect the rim a bit more in potholes. What psi do owners with 19” wheels set their tire pressure.
Super Member
Joined: Nov 2017
Posts: 669
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From: Hermosa Beach, California
2018 E400 Coupe
I follow the recommendations on the gas door but add 2 PSI. Ride id good, as is the handling.
By any chance are your tires RFTs? (Run Flat Tires). My car came with those — the ride was rough and the handling not great, so I dumped them in favor of non-RFT tires.
By any chance are your tires RFTs? (Run Flat Tires). My car came with those — the ride was rough and the handling not great, so I dumped them in favor of non-RFT tires.
Member
Joined: Nov 2021
Posts: 109
Likes: 15
E300
Hi everyone, new to the W213 forum, had a few Mercedes in the pass. I was looking at the factory psi settings at the gas door, 32 psi seem awfully low for the 19 inch 40 series tires. I decided to set them to 33 psi and the ride is on the stiff side for a Mercedes but not uncomfortable. These Perilli 40 series tires’ sidewall looks shorter than my last car with the same size tire but non-runflat which recommends 35 psi. I am thinking the higher psi will protect the rim a bit more in potholes. What psi do owners with 19” wheels set their tire pressure.
Thread Starter
MBWorld Fanatic!
Joined: Oct 2015
Posts: 1,583
Likes: 292
2019 E300
My E300 has 19’ Pirelli runflts, I have them at 35 psi all around now, the ride is stiff but not uncomfortable. Had many experience with runflats, all I have to say is that the earlier runflats were much worst as far as ride and damages. If I switch to conventional tires, I dont think I would be comfortable going on long trips with just a can of fix a flat and a compressor.
Newbie
Joined: Sep 2020
Posts: 3
Likes: 0
W213 E220d
Would you mind sharing the picture of the sticker with the pressure values?
For some reason, my car doesn't have it at all (I've checked all possible spaces) either the previous owner removed it or it wasn't provided.
Thanks
For some reason, my car doesn't have it at all (I've checked all possible spaces) either the previous owner removed it or it wasn't provided.
Thanks
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
There has been so many threads on this topic:
I have the 18" wheels, standard, on my 2019 E450 with Pirelli Centurato RF: the gas cap recommended PSI for normal driving conditions is 33/33: (higher or extended high speeds and/or extra persons and/or weight) I choose to increase this to 35 PSI front/rear. I find the ride quite smooth, handling excellent and by increasing the pressure by 2 PSI I get better gas mileage and tread wear.
Only my $.02 and hopes this helps others.
- The harsh ride is almost 100% the result of 19" optional wheels vs. the standard 18' wheels and not run flats vs. non run flat tires.
- The tire pressure on the door frame is not the one to use: the tire pressure on the fuel tank is the one to use
I have the 18" wheels, standard, on my 2019 E450 with Pirelli Centurato RF: the gas cap recommended PSI for normal driving conditions is 33/33: (higher or extended high speeds and/or extra persons and/or weight) I choose to increase this to 35 PSI front/rear. I find the ride quite smooth, handling excellent and by increasing the pressure by 2 PSI I get better gas mileage and tread wear.
Only my $.02 and hopes this helps others.
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MBWorld Fanatic!
Joined: Sep 2018
Posts: 3,243
Likes: 931
From: New Orleans Area
2015 E400 Sedan
FYI
Analog pressure gages accuracy is +/- 1% of Max gage reading.
So best to use a gage that has max reading just above your max setting.
Why is this important?
If you use one of those TRUCK tire gages with max reading of say 160PSI then error on pressure reading is +/- 1.6PSI.
So if you set it at your 1 psi higher it could still be lower then MB sticker.
Also digital ones can have worse error and it is worth the time to read the data on accuracy.
To resolve this you can always get your pressure gage calibrated or just learn to live with it.
My issue is the tire pressure monitor accuracy is what? I set mine and have tire shop and oil change shop all set them to a pressure I like yet the monitor tends to read it as 3-5 psi higher.
Analog pressure gages accuracy is +/- 1% of Max gage reading.
So best to use a gage that has max reading just above your max setting.
Why is this important?
If you use one of those TRUCK tire gages with max reading of say 160PSI then error on pressure reading is +/- 1.6PSI.
So if you set it at your 1 psi higher it could still be lower then MB sticker.
Also digital ones can have worse error and it is worth the time to read the data on accuracy.
To resolve this you can always get your pressure gage calibrated or just learn to live with it.
My issue is the tire pressure monitor accuracy is what? I set mine and have tire shop and oil change shop all set them to a pressure I like yet the monitor tends to read it as 3-5 psi higher.
MBWorld Fanatic!
Joined: May 2018
Posts: 3,048
Likes: 905
From: Long Island, NY
2019 E 450, 2016 E350 4matic (retired), 2018 Ford Edge Sport, 2008 Porsche Boxster
FYI
Analog pressure gages accuracy is +/- 1% of Max gage reading.
So best to use a gage that has max reading just above your max setting.
Why is this important?
If you use one of those TRUCK tire gages with max reading of say 160PSI then error on pressure reading is +/- 1.6PSI.
So if you set it at your 1 psi higher it could still be lower then MB sticker.
Also digital ones can have worse error and it is worth the time to read the data on accuracy.
To resolve this you can always get your pressure gage calibrated or just learn to live with it.
My issue is the tire pressure monitor accuracy is what? I set mine and have tire shop and oil change shop all set them to a pressure I like yet the monitor tends to read it as 3-5 psi higher.
Analog pressure gages accuracy is +/- 1% of Max gage reading.
So best to use a gage that has max reading just above your max setting.
Why is this important?
If you use one of those TRUCK tire gages with max reading of say 160PSI then error on pressure reading is +/- 1.6PSI.
So if you set it at your 1 psi higher it could still be lower then MB sticker.
Also digital ones can have worse error and it is worth the time to read the data on accuracy.
To resolve this you can always get your pressure gage calibrated or just learn to live with it.
My issue is the tire pressure monitor accuracy is what? I set mine and have tire shop and oil change shop all set them to a pressure I like yet the monitor tends to read it as 3-5 psi higher.
I have a digital tire pressure gauge: When I cross check the reading with the TPS on both my Mercedes and Ford, at 35 PSI the readings are identical: to me that means that the gauge is accurate.
see:
Newbie
Joined: Jan 2022
Posts: 6
Likes: 0
From: Melbourne, Australia
E400
I live in Australia and I have found 40PSI suites the roads and the car rides beautifully. Over the last 25 years, I have always run 40 PSI on any wheels over 18". Never had a wear issues unless alingement has been out.
