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What tire pressure are you running?

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Old Mar 29, 2021 | 08:44 PM
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mikec35
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2016 C300 sedan
What tire pressure are you running?
For the past 140,000 miles on my 2016 C300 4matic I have been running what's on the door jamb label, 36 front, 45 rear. Today I tried running what's posted inside of the gas door, 36 front and rear. The car rides much smoother, quieter and I still got 35.1 mpg on a 500 mile round trip today. I am also using run flats, for now...staggered 18’s.

Curious what others are running?
Last edited by mikec35; Mar 29, 2021 at 11:11 PM.
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Old Mar 29, 2021 | 10:56 PM
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irondad's Avatar
irondad
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W205, X253, C190, W213,
Are you on 17s, 18s, or 19s?

I'm on staggered 19" Pirelli P Zero Luxury tires and run 40psi front and rear.
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Old Mar 29, 2021 | 11:13 PM
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2016 C300 sedan
Originally Posted by irondad
Are you on 17s, 18s, or 19s?

I'm on staggered 19" Pirelli P Zero Luxury tires and run 40psi front and rear.
Staggered 18’s - I edited the original post.

Thanks
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Old Mar 30, 2021 | 06:54 PM
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W205 2015
19" here.I run on 36 psi as mentioned on the gas door. Smooth ride. No issues.
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Old Mar 31, 2021 | 11:15 AM
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2019 CLS450 (C257)
Originally Posted by mikec35
For the past 140,000 miles on my 2016 C300 4matic I have been running what's on the door jamb label, 36 front, 45 rear. Today I tried running what's posted inside of the gas door, 36 front and rear. The car rides much smoother, quieter and I still got 35.1 mpg on a 500 mile round trip today. I am also using run flats, for now...staggered 18’s.

Curious what others are running?
running on 18s. front and rear are on 38, rides well too.
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Old Mar 31, 2021 | 07:54 PM
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C300
I have 225/50/17 on a 2015 RWD and run 39 psi front / 45 psi rear. I have noticed different settings in the door jamb and gas tank. I never got a great answer about this but I just found this online which explains it. Maybe I should drop it.
The dealer and some tire places have dropped it to 39 psi all around so even they are not sure at time.

http://mercedes-benz.custhelp.com/ci...0pressures.pdf
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Last edited by MBenzOwner; Mar 31, 2021 at 08:02 PM. Reason: uploaded PDF
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Old Apr 2, 2021 | 02:20 PM
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2016 C300 sedan
I think I like 36 psi both front and rear, the ride is so much better and I am not really noticing that much of a mpg difference. I am curious if my rear tires, that already wear very quickly on the edges will wear even quicker, probably so. With the rears pumped up to 45 psi you hear every bump on the highway, and it's crazy annoying on concrete sections that have stress cracks cut every 20ft or so.
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Old Apr 2, 2021 | 03:22 PM
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W205 2015
Why door jamb and gaz door information are different? Mine dont have anything regarding tires on its door jamb. Also no psi on my car i had to make the conversion from KPa.
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Old Apr 2, 2021 | 06:13 PM
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irondad's Avatar
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W205, X253, C190, W213,
Originally Posted by Andy74
Why door jamb and gaz door information are different? Mine dont have anything regarding tires on its door jamb. Also no psi on my car i had to make the conversion from KPa.
Door jam is maximum pressures. Fuel door are recommended and maximum. My dealer sets my pressure at 40 all around and that is about the middle of the recommended and maximum.
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Old Apr 5, 2021 | 10:49 AM
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2019 C300 4Matic
My 2019 door jamb says 41 front, 48 rear. I have run flats. Seems extreme to me....
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Old Apr 5, 2021 | 10:51 AM
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W205, X253, C190, W213,
Originally Posted by motorhead4matic
I think it also depends on whether you drive long distances or short distances daily. I adjust based on road conditions too.
Tire air pressure is definitely temperature, speed, and weight dependent...but distance? Please elaborate.
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Old Apr 20, 2021 | 08:49 AM
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2016 SLK 300
Pirelli PZero
Just put new Pirelli's PZero on staggered and not sure what pressure to run. Currently 40 in front & 42 rear is a rough ride for my 2016 SLK300. I live in FL. Thanks
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