Frankster

One of my tires were low today, so I decided to look at the manufacturer specs by the driver's side door sill. I was taken aback with the #s: 48psi fronts / 44 psi rears...anyone else noticed this and whether or not you guys are following MB's recommendation? That's the highest I've ever seen.

DFW01E55

Crazy stuff huh?
I'm at 42 for the street.

johno530

Inside the gas filler cover the chart says 38/33 psi for up to 155 mph

LOVEMYBS

Same question, I reset my pressure to 38/33 but you're right, the recommended pressure inside the door is 48/44, the gas tank is 38/33 up to 155mph and 48/44 up to 186. The owners manual says 38/33.

ET550

48/44 is overkill for the street especially if you are using the car as a DD. the 38/33 recommendation will give you the most comfortable ride without sacrificing too much handling. I have been using 42/38 as a compromise for daily driving as I find it results in a little bit better handling without sacrificing too much ride comfort. I would recommend starting with the 38/33 for a little while and then experiment upwards and see if you feel a difference.

spr

Why do you guys run so much pressure front?? Is it because of the larger tire widths? If you say weight distribution, isn't it close to 50/50? Also although turn in, is I am sure better, doesn't it get wayy to greasy with that much pressure when on track? I've never heard of such high pressure. I do remember that the clk63 regular runs this much with the smaller tires. Why?