Eddie Knopp

For those of you with 20" wheels (stock preferably), what pressures are you running ? On my old E55 with 18" I ran 42 F and 36 R.

Thanks

RoydRage

I asked the same thing here... No one seems to respond... I figured it would be a hot topic, cause a lot of people have bent rims.. Plus the ride is a factor.

https://mbworld.org/forums/sl55-amg-sl63-amg-sl65-amg-r230/194705-pressure.html

Best,

RoydRage

Eddie Knopp

Guess I'll post in the tire forum

Blocktrader

Go with the pressure on the placard on on the door.

Saw your other thread BTW. I am about to trade my E55 for the S63 as well. Tough for me to give up the E55 though.

Eddie Knopp

Blocktrader - you won't regret it

Eddie Knopp

Got an email from Luke @ Tirerack - His recommendation is 44 Front and 40 Rear. Just did that and set it in the TPMS - we'll see. He was right on for my E55.

noxxin

great info thanks eddie. i am going to do my tires at this pressure in the morning.

Eddie Knopp

The new pressures seem to run very well. I now have 500 mileds on her - after playing around yesterday, I'm so impressed as to how much better she handles than the E - extremely pleasantly surprised.

rslpartners

wow really?

what kind of tires are you running and what is the stated max psi?

i'm curious to know why more in the front?

i had after market wheels/tires and use to run them at 34 in the front and 36 in the rear cold.
when hot they got up to 38-39/ 40-41 in the rear.

Eddie Knopp

It came with Conti's. The placard is 40/40 or 48/48 for speeds > 100. Luke had suggested that difference to combat understeer. I used his suggestions on my E55 and was pleased so I went with it again. Not being any sort of expert and not tracking the car I just went with his advice.

noxxin

question: Like NY the potholes in LA are just hideous, I hit 2 massive ones today alone and may have already cracked one of my rims. I cracked 2 rims on my cls in 18 months and one on my E55 (glad my dealer has a heart and paid for one of them and cut me a huge break on the other 2, but still wasn't cheap). I didn't even know i was riding on a craked rim one of the times it happened. what is the best tire pressure to run at to avoid this problem? If i run with more pressure does that make the impact on the wheels even harder. I spent 15 mins cursing the city of LA to myself while driving around today. This is becoming a major issue to me and I know that i won't get any deals on a new rim if i bust one of these amg package 20's up. what the hell is a guy to do???

Eddie Knopp

Noxxin I feel for you - I can't tell you the number of rims/ and tires I've been thru - the last was a front PS2 on the E55 and the same day I had it changed guess what another pothole.

I'd send luke an email directly - he seems to respond that way, I'm sure he has advice.

esse22

Most dealers sell rim and tire insurance.

It is well worth the money.

Eddie Knopp

Yes - they actually started to try to convince me I needed it - I said stop I'll take it

noxxin

I'm calling my dealer today. How much did it cost you and what does it cover? Thanks boys.

Eddie Knopp

think it was 500, from MB covers wheels and tires for road damage - complete replacement for 5 years.