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Old Nov 1, 2015 | 08:31 PM
  #1  
Chrismak's Avatar
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From: Brewster,NY
2008 Bluetec E320
Wheel size question

I have the Bluetec and they come with 16 inch wheels from factory.

I know the e 350 gasses have bigger wheels up to 18 inch without any issue.

From what I've read the diesels don't ride as well on bigger rims.
I recently picked up a set of Donal MB rims 17 inch I was planning on putting winter tires on.
The rims have 245/45/17 tires.
I'm not sure what model these came off but should I find similar size tires or stay with the 225/55/17.
According to http://www.1010tires.com
The radius on these are actually smaller than the 16's if I'm reading it right.

Any recommendations . Should I keep the 17 inch rims for summer and put winters on stock 16.





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Old Nov 2, 2015 | 04:58 PM
  #2  
marc hanna's Avatar
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From: Nova Scotia, Canada
2023 GLK250, 1987 560SL
The diesel will handle a larger diameter rim and tire combo better than a gasser on account of the greater torque. However it's best to stick with the factory diameter setup for the best fuel economy for city or mixed city/highway driving.

To calculate diameter (based on rim width stated in mm): rim diameter + (rim width x profile/100 x 2)/25.4

Also take into consideration the offset
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Old Nov 2, 2015 | 05:02 PM
  #3  
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From: Nova Scotia, Canada
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Offset is based on distance of the hub face from centreline of the rim. So a rim that has the same offset but is a inch wider with stick out a half inch more (affecting alignment with fender flare) and extend inside a half inch more (affecting interference with suspension and wheel well liner)
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Old Nov 3, 2015 | 12:06 AM
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2007 W204 220CDI Classic Sedan
My C Class diesel has a much better ride with 16" rims compared with 17".

I have standard 205/55/16 tyres.
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Old Nov 3, 2015 | 12:51 AM
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C 200 Cdi 2012
Weel size

I also have the same imprsion that the 205/55/16 are better.
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Old Nov 3, 2015 | 08:24 AM
  #6  
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From: Nova Scotia, Canada
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If we're talking about ride comfort, taller tires are always going to make for a softer ride regardless of the vehicle.
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Old Nov 4, 2015 | 01:41 AM
  #7  
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The ride difference between the 16" & 17" rims made the difference on whether I bought the car or not.
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Old Nov 4, 2015 | 04:37 PM
  #8  
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Why not just change the rims?
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Old Nov 5, 2015 | 04:10 AM
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Thankfully I found a lower spec car with the 16". At A$62,000 an extra grand or so for rims was not an option. !!
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