SL/R230: Tire Pressure
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2026 Mercedes CLE53A4 AMG Cabriolet and 2025 MAYBACH EQS680V4
Originally Posted by StephenK
? fellow SL owners. What tire pressures are you using. I am using the standard tires that come with an 05 SL600.
30 Rear
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From: Tallahassee, Florida
2006 SL600, 2001 S500, 1996 SL320
Thanks
Originally Posted by LovinSL600
27 Front
30 Rear
30 Rear
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From: Pittsburgh,pa
2010 Range Rover S/C 2010 Land Rover LR4 HSE Lux Plus 2007 BMW R1200GS
I have noticed that anything under 30 front and the sides are wearing more, and anything more than 30 rear, the middle is wearing more. There was a previous thread were one guy was running 34 front-30 rear. This apparently was a recommendation from Tire Rack. At the price of these tires, I will using my tire depth gauge frequently! 
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2026 Mercedes CLE53A4 AMG Cabriolet and 2025 MAYBACH EQS680V4
Originally Posted by PA500SL
I have noticed that anything under 30 front and the sides are wearing more, and anything more than 30 rear, the middle is wearing more. There was a previous thread were one guy was running 34 front-30 rear. This apparently was a recommendation from Tire Rack. At the price of these tires, I will using my tire depth gauge frequently!
I do, now that you mention it remember this thread. There were a whole bunch of posts about this a while back.
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From: South Florida
I'm running 32 front and 35 rear with the staggared 18" AMG wheels. I feel when under 30 in the front, I loose some handling with turn in. I'm still playing with the rears as lower the pressure the better grip but, I notice uneven wear towards the outside. I'm not driving the car as hard as I used to when I first got it so, the higher pressure in the rear seams just fine for now. I kept lower pressure on a previous set and they started to cup around 5k miles and progressively got worse/noisier up to around 11k when I bought new.
I'm also very atuned to wear and look almost weekly and they seem to be wearing very evenly front and rear after 6k miles on this set...and still very quiet.
One other point regarding cupping and etc... I recieved the car with the factory balance and allignment and my tires lasted around 10k. I asked the dealer to realign with the new set of tires (long process as it includes making adjustments to the Distronic sensor) and my tires are wearing much more evenly. While I never felt the car was out of allignment from the factory (pulling one way or another) I DEFINATELY feel a difference after the dealer realigned me. The car feels freeer and tracks even better. Yes, the dealer said the car was very much out of allignement when they made their adjustments even though the car never pulled.
I'm also very atuned to wear and look almost weekly and they seem to be wearing very evenly front and rear after 6k miles on this set...and still very quiet.
One other point regarding cupping and etc... I recieved the car with the factory balance and allignment and my tires lasted around 10k. I asked the dealer to realign with the new set of tires (long process as it includes making adjustments to the Distronic sensor) and my tires are wearing much more evenly. While I never felt the car was out of allignment from the factory (pulling one way or another) I DEFINATELY feel a difference after the dealer realigned me. The car feels freeer and tracks even better. Yes, the dealer said the car was very much out of allignement when they made their adjustments even though the car never pulled.
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06' E500 Estate, '08 S65, '05 S430
Low?
Guys, aren't these pressures kind of low? On my placard for the 18" wheels that came w/ the car, it reads normal load 35 psi front and 36 psi rear.
Don't get me wrong, I'd love for you guys to be right because w/ the 19"-ers it would help to have lower tire pressures. My car came delivered with 31 psi front and 34 psi rear.
Jeff
Don't get me wrong, I'd love for you guys to be right because w/ the 19"-ers it would help to have lower tire pressures. My car came delivered with 31 psi front and 34 psi rear.
Jeff
Last edited by jeffreyy; Mar 28, 2005 at 02:56 PM.
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From: Pittsburgh,pa
2010 Range Rover S/C 2010 Land Rover LR4 HSE Lux Plus 2007 BMW R1200GS
It's kind of a bummer to waste a set of tires figuring out which pressure is right for your car and your driving style. Unfortunately, it takes several thousand miles before you can measure a change with a tire depth gauge. The factory pressures are generally low for comfort, so 4-5 P.S.I. over is not uncommon for best wear and handling. The manufacturers will also recommend higher in the rear to create understeer, which is safer at high speeds. A staggered setup already does this, so optimum pressures will be closer to even front and rear. I have been running 32 F&R, but I am seeing more wear in the middle on rears, so I am going to try 30 for a while. I will keep 32 in fronts for now. Once again, you don't know until it's too late! 
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From: Memphis
SL500 and A-CLASS
Originally Posted by jeffreyy
Guys, aren't these pressures kind of low? On my placard for the 18" wheels that came w/ the car, it reads normal load 35 psi front and 36 psi rear.
Don't get me wrong, I'd love for you guys to be right because w/ the 19"-ers it would help to have lower tire pressures. My car came delivered with 31 psi front and 34 psi rear.
Jeff
Don't get me wrong, I'd love for you guys to be right because w/ the 19"-ers it would help to have lower tire pressures. My car came delivered with 31 psi front and 34 psi rear.
Jeff
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From: Tallahassee, Florida
2006 SL600, 2001 S500, 1996 SL320
Actual Pressures
LF= 29
RF= 26.5
LR= 28.5
RR= 29
The recommended tire pressures per the inside of the gas cap is 26 Front and 29 Rear.
There have been several posts with different #'s, what are the pluses and minuses to too much versus to little tire pressure. I know it will effect the wear, but driving would you feel a difference?
RF= 26.5
LR= 28.5
RR= 29
The recommended tire pressures per the inside of the gas cap is 26 Front and 29 Rear.
There have been several posts with different #'s, what are the pluses and minuses to too much versus to little tire pressure. I know it will effect the wear, but driving would you feel a difference?
