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· Premium Member
2012 CL550 4MATIC Coupe - RIP
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You can put spacers on, but I wouldn't, cuz I have. And if you do, use the HubCentric ones ONLY!
 

· Registered
1987 420SEL
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As stated, hub-centric, which is something that is easily overlooked. Hub-centric means that the hub locates the spacer rather than the wheel bolts.

Keep in mind that regardless of whether a car uses bolts or studs, the force that is keeping the wheel on the hub is friction between the two surfaces, which is attained by the bolts through their recommended tightening torque. Lugs are never under shear; if they were, you'd shear them just letting the car off the jack, provided the wheel had no other means of location.

As long as you can maintain the correct tightening torque, and thus force of friction, the wheel is properly fastened. Keep all surfaces free of any lubricants.

But all this is irrelevant as wheel spacers suck. Bearings don't like additional axial leverage.
 

· Premium Member
2012 CL550 4MATIC Coupe - RIP
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10,033 Posts
Also, depending on the width of the spacers, HC has two types. The first up to I think 15-20MM you put on and just get longer lug nuts. Those were what I had on my car and are downstairs (10MM) and the other type is the type that you screw into the hubs with one set of lugs that are part of the spacer and then you bolt the std lugs into the spacer. 25MM and up for those I think.
 
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