E-Class (W212) 2010 - 2016: E 350, E 550
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Factory Wheel Sizes and Tire Rotations

Old Jan 2, 2021 | 10:39 AM
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qdeezie's Avatar
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From: Charlotte, NC
2010 E550 Coupe
Factory Wheel Sizes and Tire Rotations

Good Morning Everyone!

This is the first in a series of questions I have about my car. I would like to swap out the wheels on my car to the "10 spoke 5 star" style wheel (don't know how else to describe it) that also came on the E550 coupes. I think they look more sporty (to me) than the ones that came on my car (12 spoke 6 star). I have searched salvage yards and see they are readily available. My question is I see 18x8 wheels and 18x8.5 wheels in the same style. Just to confirm, are the 18x8 for the front and the 18x8.5 for the back? As for the tire size that I plan to use on these wheels, I plan on using the same size wheel that are on the existing wheels I have (235/40/18 - Front and 255/35/18 - Back).

Also - A bit of a strange (and possibly idiotic) question, but I have to ask. With regards to tire rotations, how does that work? Do I just swap the left tire to the right and vice-versa? They definitely can't go from the front to back since they are different sizes.

Thank you in advance!
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Old Jan 3, 2021 | 04:19 PM
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you do not rotate asymmetric tires at all. replace them as they wear, and if its 4matic, you'd best always replace all 4 together. IIRC, those cars don't come with spares, either, they use runflats.
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Old Jan 3, 2021 | 11:20 PM
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Do you currently have 18 x 8.5 on the rears?

My 2012 E550 has 18 X 8 all around, and I think that is factory stock (running 245/40 tires)
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Old Jan 3, 2021 | 11:41 PM
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afaik, the offsets are on the AMG cars, E43, E63 or whatever


ah, looks like the coupe/cabriolets came with offset wheel sizes at least in various random sampled years from the brochures..

Last edited by Left Coast Geek; Jan 3, 2021 at 11:49 PM.
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Old Jan 4, 2021 | 08:31 AM
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Originally Posted by Left Coast Geek
afaik, the offsets are on the AMG cars, E43, E63 or whatever


ah, looks like the coupe/cabriolets came with offset wheel sizes at least in various random sampled years from the brochures..
The E550 2 door coupes are RWD. They come with a staggered setup.
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Old Jan 4, 2021 | 11:30 PM
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2012 E550 A207
Factory Wheel Sizes and Tire Rotations

Hello
new to forum but have also been researching a lot re tires for my recently acquired 2012 E550 cabrio.
The staggered set up was an option and I do have it on my merc. I have the optional 5 twin spoke rims as shown in the original brochure.
225x40R18 ET45 FR and 25535R18 ET 49 Rears. Unfortunately mine were poorly painted matte black so I am refinishing back to original gloss black and polished face.
My question is does anyone know the max width and proper offset that can be used if one was to choose to go to a 19 inch 9.5 rear rim without causing issues.
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Old Jan 5, 2021 | 12:03 AM
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with 19" wheels on a 4000+ lb car, I hope you NEVER drive on a rough road or one with potholes or cracks in pavement blocks, or you WILL damage your wheels. AND your ride will suffer, a lot.

Mercedes already warns that 18" wheels are subject to damage on bad roads. 19's are even worse (ok, more than the rim size, its the corresponding tire profile, your 19's will probably take /30 tires which have very small sidewalls and need very high pressures)
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