2011 ML550 Wheel Question - MBWorld.org Forums

Mar 7, 2013 | 07:39 PM

rlucas

Thread Starter

Junior Member

Joined: Mar 2006

Posts: 37

Likes: 1

2011 ML550 Wheel Question

Have a '11 ML550 with 19" AMG wheels. Was thinking about going to a 20" OEM Mercedes rim.

Question: Do you have to have anything done "computer wise" to let the vehicle know it now has 20" rims? Will it affect speedometer?

Also -Are ML & GL rims interchangeable?

Thx!

Mar 7, 2013 | 09:22 PM

medic

Member

Joined: Mar 2010

Posts: 95

Likes: 1

2009 ML550

Hi, I sent you a reply elsewhere, but you can easily change from 19 to 20 with no need to change anything as long as you keep the overall diameter the same (or very close). What I did was 265/45/20 (~ maintain original 255/50/19 diameter). So it really depends on what tire you have on the 19" that you have now.
This calculator can give you an idea what will happen as you change tires...
http://www.csgnetwork.com/speedocalibcalc.html

Mar 22, 2013 | 11:25 PM

C-rod

Senior Member

Joined: Dec 2002

Posts: 304

Likes: 1

From: Guelph, Ont. CA.

2014 ML350 BlueTec.

Yes, no biggie.

I have 20's in the summer and 19's in the winter. I am also switching my current 265/45/20 summer tires to 275/45/20, less than 3%, so again, no big deal. I wanted a wider stance in the rear.