Lug Bolt size for spare (steel) wheel
My '07 C280 manual states that I should use shorter lug bolts with the spare (steel) wheel/tire. But the manual doesn't state the length of the shorter lug bolt. AutohausAZ sells the lug bolts in 3 lengths
2 1/2" lug bolts - for alloy wheels (this is what I currently have on the car)
2" lug bolts - what about this one?
1 1/2" lug bolts - is this what I should be using with the steel wheel?
Appreciate your feedback.
pcy
I F***ed up my parking brake by putting the original bolts with the spare, and forced it by putting it in drive.
Save yourself $50 and use the short nuts.
The longest ones are for the original rims.
The shorter lug bolt shown in the owner's manual resembles closest to the shortest lug bolt from Autohaus...
Thanks for taking time to provide your feedback.
Last edited by pcy; Jul 26, 2010 at 12:38 PM.
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I would appreciate it if you can confirm the actual length (one and half inch or 2 inch) of the spare tire lug bolt. Thanks.
AutohausAZ lists the middle one (two inches long bolt) for this car... not sure why.
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The spare tire bolts have a shank length of .75"
Here you go, found some on ebay for you, this is the original packaging too, and it fits on the inside of the spare.
http://cgi.ebay.com/ebaymotors/Merce...Q5fAccessories
There lug bolts aren't that expensive; however, I'd hate to order the wrong ones and waste the bolts.
Just buy the bolts from the ebay link i posted, those are absolutely the correct bolts.
Thanks Eric and others for your feedback.
Kokomo
-long- M12x1.5 thread, R12 ball seat, 39.9 mm shank, 17 mm Hex (for OEM alloy wheels)
-short- M12x1.5 thread, R12 ball seat, 20.6 mm shank (for winter "steelies")
Spare wheels use short lugs,... the stock lugs in trunk has a bit of a hollow hex in bolt but otherwise exact same dimension as short for winter "steelies"
Problem is the lug nuts for the spare. My dealer said nothing was available because my VIN did not match with any lug nuts or spare; but, what I got today will fit.
Does anyone have any ideas? The OEM lug nuts for each run flat has a thread size M14 x 1.5, 28mm.
Last edited by kmdsid; Apr 10, 2019 at 08:15 PM. Reason: wrong #



