E-Class Coupe (C207) & Cabrio (A207) 2010-: E250CDI Coupe, E350 Coupe, E350CDI Coupe, E500 Coupe, E550 Coupe [Coupes & Cabriolets]

To 20 inch or not to 20 inch?

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Old Jul 18, 2025 | 12:54 AM
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Mercmonster253's Avatar
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From: Wa state
2013 E550 coupe
To 20 inch or not to 20 inch?

Guys,
I'm wanting to go up to a 20 inch wheel on my 13 e550 coupe. I've tried 3 different wheels and have had troubles with all of them. The latest was a set of wheels that had been on an S500 and the tires hit my front coil spring seat. The previous ones were just too wide in the rear. Can anyone tell me exactly what offset I need to stay over or under in order to pull this off?
thanks in advance


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Old Jul 18, 2025 | 09:02 AM
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streborx's Avatar
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From: Colorado
G550
Use a tire size comparison tool such as the one at tiresize.com. Nobody but you understands what you're trying to achieve, and there are many variables to account for.
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Old Jul 22, 2025 | 08:28 PM
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E400 Cab -15
Hello, 8" front with offset 32 works for me , 9" and offset 48 in the rear works for me.

This setup is extremely close to the strut tower but it doesn't hit. I got some rubbing in the front arch lining when riding over big bumps, but nothing major.

Front 235/35 R20
Rear 265/30 R20


E400 Cab-15
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