I tried that sort of ballpark but the ride quality worsened. I suspect it's too cold here right now so, regardless of what I do, I'm still driving on concrete tires. Lowering the default height of the car probably won't help either.

I've got it setup as 42 / 38 for now and the pressure barely ticks up after driving for a while--another indicator that it's freakin cold.

Thanks for the input, guys!

Last week up here in pothole central (Toronto) I hit a small crater and destroyed my front passenger tire. For what it’s worth my pressures were about 36 all the way around. My wheel was undamaged (thankfully) just the tire sidewalk blew out. New tire and pressure is now set to 41 front 38 rear and its livable.

It’s arguably the worst it’s ever been up here and driving is like playing a game. You constantly have to keep your eyes open. That one got me because it came up out of nowhere while I was making a left so I was looking a bit further ahead so as to not hit pedestrians lol... I can probably put up the dash cam video if you want it’s pretty entertaining

you can file a claim against the city of Toronto. It’s a long shot but you have nothing to lose now

Sent in the video, pics and the bill for $593... not counting on anything...

Just got over break in period with my new ride. It came with 20” MPS4S and were set at 39 front and 37.5 rear cold. The road condition here is not really ideal so I felt a bit too bumpy after a week of driving. Now I lowered tire pressure a bit to 34.5 front and 32.5 rear cold. It feels much better now. The first try of race start took place this afternoon near IBM research lab at south San Jose. It took 3.18 to 60 mph and 11.16 to quarter mile. Tire pressure raised to 40 front and 38 rear.

I thought this is at the bottom of tire pressure spec and was a bit surprised to get a message reminding me to adjust tire pressure this morning. I kind of enjoy better with daily ride quality with lower setting. Knowing this may wear out tire sooner but rather be more comfortable so will keep it this way.........:-)

Mitch

The data plate on the fuel filler door says 41 front/33 rear for lightly loaded car traveling up to ~150 mph, and higher pressure if driving up to 186 mph.

Your pressures are set considerably lower than recommended. Don’t think I’d want to go much lower than 38 on the fronts given the low profile of the tire.

I normally do quite a bit sprints and not often go beyond 120 mph (not a good idea around Bay Area). Considering road condition here in Fremont (too many apartment construction going on), it is not very pleasant for daily driving. So I am willing to trade off higher wear out for good mood from “little softer” ride comfort. I set at mid 30s with both 2010 e63 and 2012 e63 wagon I previously driving (both on smaller 19” tire) without issues. I wish Mecedes would consider adding a “comfort plus” mode just to put more smile on certain e63 owners.........:-)

Mitch