kobe0819

For those who has the C63 18" Wheels, what is your tire pressure ??
Thanks

GBlansten

39 front
41 rear

kobe0819

do you know what's the number reads on the door side??

thanks

GBlansten

Door jam is 41/45 I believe.

Then you open up the gas tank door and it lists some recs based on number of passengers.

qship5

I'm running 37.5 front and 39 rear. I originally ran the pressures on the door jamb and the middle of the rear tires wore faster than the rest of the traed so I backed it down.

mzporto

39 and 41? Really? I mean... M3 18's PSI pressure was 33/34. Is the C63 tire that bigger?

kdoyle

I was just at Discount Tire last week and they said the high PSI was probably to keep the MPG up as much as possible. I'm going to try a lower setting now that I have new rears.

GBlansten

Agree with that. I'm open to dropping down the pressure further in my tires. 41/45 was way too high for a car that usually has one passenger.

gsrjc

I run 39psi all the way around.

Shellbmb

Occasionally when I turn the car off I get a "correct tire pressure" message on the display. I checked last night and my cold tire pressure is 36 on all 4 tires. 95% of my driving is by myself.

Does anyone know at what pressure the indicator goes off?

And it does seem odd that my Tahoe could tell me the exact pressure in all four tires at any time whereas my BMW and C63 can only tell me that one or more tires has an incorrect pressure.

MJ50

many run 38 all around...

Jae Duk

It's really sensitive, even a slightly off will trip the TPM. I've had to add air twice since I got my car 6 months ago.