OEM Wheel and tire info - for the record
03-20-2016, 08:50 PM
#1
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OEM Wheel and tire info - for the record
OEM wheel sizes and offsets (same for 18” and 19”)
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
Last edited by zcct04; 03-22-2016 at 12:18 AM.
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thelinux (04-14-2018)
03-20-2016, 11:42 PM
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2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
Most 275's and some 285's fit on the stock 18" rear rims with no rubbing whatsoever
03-21-2016, 03:32 PM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
Not to nitpick - but the bolt circle is *exactly* 112mm, not 112.5 mm... perhaps what you meant was 5 x 112?
03-21-2016, 03:36 PM
#4
Super Member
either way, great to have all this info compiled into one thread. I know I spent a good amount of time reading through search results to find this same info.
03-22-2016, 12:17 AM
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03-22-2016, 01:01 PM
#6
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OEM wheel sizes and offsets (same for 18” and 19”)
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
04-13-2018, 07:43 AM
#7
Junior Member
Can you replace a 235/35 19 front with a 245/35 19 and keep the 255/30 19 on the rear. The wheels are 19x8f and 19x9r I am asking this as the rears are new. Your thoughts would be appreciated.
Thanks,
Chris.
Thanks,
Chris.
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04-13-2018, 12:09 PM
#8
Junior Member
OEM wheel sizes and offsets (same for 18” and 19”)
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
- Front is 8” width with +45 offset, rear is 9” with +54 offset
- C63 hub center is 66.6mm
- Bolt circle is 5 x 112 mm (corrected)
OEM tire sizes:
- 18's stock is 235/40-18 front and 255/35-18 rear.
- 19's stock is 235/35-19 front and 255/30-19 rear.
Wider Tires:
With stock wheel sizes and offsets and stock ride height, 10 mm wider tires will generally fit without problems:
- 18's at 245/40-18 front and 265/35-18 rear.
- 19's at 245/35-19 front and 265/30-19 rear.
Some brands of 255 mm fronts and 275 mm rears MAY work but fitment may require different wheel offsets, and lowered cars may rub. Wider wheels are recommended. Check forums for feedback on specific tires and fitments.
18" Tire Sizes w/Diameters:
Front: P235/40R18 25.4” - OEM
Front: P245/40R18 25.7”
Rear: P255/35R18 25” - OEM
Rear: P265/35R18 25.3”
Rear: P275/35R18 25.6”
Rear: P285/35R18 25.9”
19” Tire Sizes w/Diameters:
Front: P235/35R19 25.5” - OEM
Front: P245/35R19 25.8”
Rear: P255/30R19 25” - OEM
Rear: P265/30R19 25.3”
Rear: P275/30R19 25.5”
Rear: P285/30R19 25.7”
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04-13-2018, 12:33 PM
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12 C63BS Magno Alanite Grey, 22 X3M Brooklyn Grey, 08 BMW E93, 22 Ducati Desert Sled, John Deere 3R
It's not an AWD car so variation front to rear is less impactful but if there is too much difference, the ABS and stability control can throw a light.
The general number I have seen thrown around is 3% difference in rolling diameter. Stock it is about 1.5%, if you go to the larger front, you are at 2.8% larger, so may be ok without knowing exactly what the tolerance is that Mercedes builds in - hopefully someone has tried it and can tell you if it worked or not.
The general number I have seen thrown around is 3% difference in rolling diameter. Stock it is about 1.5%, if you go to the larger front, you are at 2.8% larger, so may be ok without knowing exactly what the tolerance is that Mercedes builds in - hopefully someone has tried it and can tell you if it worked or not.
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arrowskartax9 (04-13-2018)
04-13-2018, 04:16 PM
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W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, C5 Z06 & IS300 race cars, EQE 4Matic+ on order
Chris - there's something else you're likely forgetting to take into account. An 8" wide rim is barely wide enough for a 235 section tire, and is definitely too narrow for a 245. That would be my primary concern.
04-13-2018, 04:35 PM
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12 C63BS Magno Alanite Grey, 22 X3M Brooklyn Grey, 08 BMW E93, 22 Ducati Desert Sled, John Deere 3R
That is a great point, always check the tire you are looking to put on the car as even the same size tire may have different max and min widths - the Michelin PS4S for instance in 245/35/19 is 8-9.5" so those would be ok to run on an 8" others may or may not.
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arrowskartax9 (04-13-2018)
04-13-2018, 06:23 PM
#12
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The wheels i have are the oem 19x8 and 19x9.
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CB90 (03-25-2021)
01-16-2022, 03:17 PM
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c63
235/55 18 on 8” rim
I just got my C63 and first order of business was new rubber. I went ahead and had the shop order stock rubber size front (235/40 18) and back (255/35 18).
The shop mounted the tires and I headed home. Upon looking at the rubber in the rears they seemed a bit big for the rim. After investigation I believe all 4 of my rims are the same size - 18”x8”. However, when I take a tape measure to the rims mounted on the car they measure 9”. I assume the barrel is probably 8” ?
Should I switch the rears out for 235/40 or keep the 255/35 on the 8” rim.
I’m no tire expert and any advice is much appreciated!
The shop mounted the tires and I headed home. Upon looking at the rubber in the rears they seemed a bit big for the rim. After investigation I believe all 4 of my rims are the same size - 18”x8”. However, when I take a tape measure to the rims mounted on the car they measure 9”. I assume the barrel is probably 8” ?
Should I switch the rears out for 235/40 or keep the 255/35 on the 8” rim.
I’m no tire expert and any advice is much appreciated!
Last edited by whiterockc63; 01-16-2022 at 03:29 PM.
01-16-2022, 04:08 PM
#17
Senior Member
I just got my C63 and first order of business was new rubber. I went ahead and had the shop order stock rubber size front (235/40 18) and back (255/35 18).
The shop mounted the tires and I headed home. Upon looking at the rubber in the rears they seemed a bit big for the rim. After investigation I believe all 4 of my rims are the same size - 18”x8”. However, when I take a tape measure to the rims mounted on the car they measure 9”. I assume the barrel is probably 8” ?
Should I switch the rears out for 235/40 or keep the 255/35 on the 8” rim.
I’m no tire expert and any advice is much appreciated!
The shop mounted the tires and I headed home. Upon looking at the rubber in the rears they seemed a bit big for the rim. After investigation I believe all 4 of my rims are the same size - 18”x8”. However, when I take a tape measure to the rims mounted on the car they measure 9”. I assume the barrel is probably 8” ?
Should I switch the rears out for 235/40 or keep the 255/35 on the 8” rim.
I’m no tire expert and any advice is much appreciated!
09-19-2022, 03:23 PM
#18
Junior Member
I know this is an old thread, but maybe I can get some help on wheel fitment for my 2018 c63 sedan. Would 19x9.5 +35 offset fit the rear? Would 19x8.5 +35 or +45 offset for the front? These would be 5x112 bolt pattern.
what tire sizes would be recommended?
what tire sizes would be recommended?
09-19-2022, 03:24 PM
#19
Senior Member
wrong forum, you need w205...
