Winter Tires 255/55R18
Selling my our 2007 Acura MDX Elite, and buying a ML 350 Diesel.
Have a brand new set of Michelin Ice-X tires with maybe 2000 miles on them, would like to keep them rather than buying new tires.
In 2006 Merc made a 255/55R18 tire, a five spoke that looks good. Was considering purchasing four of these wheels and using them for the winter tire change for a few months.
Does anyone know if these will bolt or how to find out the offsets on a merc ML?
Thanks




Selling my our 2007 Acura MDX Elite, and buying a ML 350 Diesel.
Have a brand new set of Michelin Ice-X tires with maybe 2000 miles on them, would like to keep them rather than buying new tires.
In 2006 Merc made a 255/55R18 tire, a five spoke that looks good. Was considering purchasing four of these wheels and using them for the winter tire change for a few months.
Does anyone know if these will bolt or how to find out the offsets on a merc ML?
Thanks
I actually run 255/65R17 Nokians on W164 rims with the spacers.
Researching if the W164 18" wheels fit on a W166 350ML Diesel.
Have a pair of 255/55R18 winter tires. Would like to buy 18" OEM W164 wheels for cheap. There are multiple W164 options out their although considering the part number 65370. OEM Part number: 1644010302 (not verified, although confident is a correct). Offset = 60mm. Bolt Pattern 5x112.
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W164 technical specifications and references
Illustrations and references to wheels:
http://www.myoemwheels.com/products-...64-1644010302/
http://www.roadwheels.us/18-06-07-me...loy-wheel-rim/
http://www.wheelsandcaps.com/p-25727...8x8-65370.aspx
Cross references R38 18" wheel option as the OEM part number above:
http://www.neoriginal.ru/cat/mb/part...64_172_/40_015
Found another thread that shows the sizes of the W164 R44 and R38 tiresize option codes:
http://www.mercedes-benzsa.co.za/mer...st_SA_2012.pdf
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W166 technical specifications and references
The standard wheel on the 2012 ML 350 Diesel is a 255/50R19. Short sidewall therefore not the best for hard winter driving.
http://www.sizemytires.com/vehicle/2...bluetec-4matic
Mercedes Benz: Tire Fitting Chart:
http://www.alloywheelsdirect.net/inf.../mercedes-benz
Mercedes Manual W166: (tire options) - it lists 56 -> 59mm as possible winter tire options.
http://www.mbusa.com/vcm/MB/DigitalA...12-M-Class.pdf
Fairly confident the Bolt Patterns are the same : 5-112
http://www.tirerack.com/wheels/resul...2&autoModClar=
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Synopsis:
In the end this other post on mbworld said this could be done.
Found another thread on mbworld that said this was possible to install the 18" R38 and 17" R44 sized tires on the W166
https://mbworld.org/forums/new-m-cla...w-tires-2.html
-With a high probability they will clear the calipers and thoughts on why:
-Reviewing the 2012 Mercedes manual. The largest winter tire option is a "255/50 R19 8.5" wide with a offset of 59 mm". Comparing this with the W164 R38 aka the 18" option. The offset on the older W164 wheels is 60mm or 1mm greater than the 59mm or the 19" W166 option. Therefore adding 1 mm of danger of the rims being closer to the calipers. On the inside of the SUV the R38 is a 8" wide rim versus the winter package 8.5" rims; so inside clearance should be okay.
-Review again the 2012 Mercedes manual. The widest RIM offset is 62mm with a 8.5" wide tire. Therefore there is a good chance that the R38 should fit and should clear the calipers.
-Furthermore would like to confirm rim diameter. Common sense says that there is lots of clearance when you consider the tire height of some of the 22" rims people mount. Although could not find any reference to wheel/rim diameters precise specs online.
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Basically the R38 should fit height wise, inside rim width wise, and should clear the calipers.
The only part in the other mbworld thread that I did not understand was the thread length of bolts? Not sure why the regular W166 bolts would not work with W164 tires. Not sure how many threads, or the length of threads that need to be torqued down?
Anyones help on this one would be appreciated.
Last edited by jkinneberg; Oct 29, 2013 at 05:34 PM. Reason: made an error, wrote the opposite word in the summary changed the meaning to the complete opposite of what I was trying to do
Late model ML's with alloy rims use a 45mm bolt whereas some earlier used 28mm bolts. Both have the same radiussed ball seat - not straight taper seats.
Both sizes are available on eBay.
Or if you get a rim which suits the short bolts, you can fit concentric spacers of about 5~8mm (also avialable on eBay). They will adapt to accept the longer bolts, correct some offset errors, and eliminate any clearance problems.
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