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Registered 2015 SLK200
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71 Posts
Discussion Starter #1
My SLK is fitted with the AMG kit. That means it has 18" AMG rims.
Tires are: Front 225/40 92Y Rear: 245/35 92Y. The information given behind the petrol cap says 33psi front and 38psi rear. I don't know if this applies to the standard 17" rims, or if the recommended pressures for the 17" & 18" rims is the same. Can any member advise? Much appreciated.
 

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Administrator 2009 SLK 55 AMG/Founding Member 2006
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98,105 Posts
I have 18 wheels on my AMG and same size tires (except I went up to 55 on the rear) and the plate says 32 front cold and 35 rear cold. I run 34 front cold and 36 rear cold btw.
 

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DAS/STAR Premium Member 2005 SLK 55 AMG
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4,024 Posts
I run 32 front, 36 rear....

Set when cold ...

18" AMG V Rims ...
 
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Registered 2013 SLK55 AMG
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579 Posts
Checked both the driver's door and petrol cap stickers on my R172 AMG with stock AMG 18" rims. My tire size (stock Conti 5P) is different; front 235/40 ZR18 95Y and rear 255/35 ZR 18 94.

Driver's door sticker indicate 35psi for the front, and 39 psi for the rear -- which conforms to the petrol cap sticker for speeds up to 174mph on summer tires. Sticker indicates reduced pressure for 155 mph limited speed; 32psi front, and 35psi rear. Been running mine at 35/39 without problems.
 

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With tyre pressures, I always find it's best to "play" to find something that suits you too - set it to the manufacturer recommendations, then try adding/taking away a few PSI to find something you're comfortable with.

All tyre makes are different too - some with softer sidewalls need extra PSI to offset, for example.
 
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