using a rounded lug on wheels that require tapered lugs
MBWorld Fanatic!
Joined: Oct 2007
Posts: 1,564
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From: SoCal
98 Brilliant Silver E320 Wagon
Maybe nothing (for a while ). The purpose of the seat is to keep the shank centered in the hole in the wheel and to distribute the pressure over as much surface as possible. A round seat lug would only apply pressure to a small ring of area where the seat and socket meet. In time this may deform that spot and eventually even cause the socket to fail. 
Certainly not as bad as using tapered lugs on a wheel with round seat sockets.
Certainly not as bad as using tapered lugs on a wheel with round seat sockets.
Thread Starter
Super Member
Joined: Apr 2002
Posts: 877
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asdf
thanks for the response.
The reason why I ask is because the shop that installed my wheels gave me lugs that were too long. I went to another shop to get them shortened but it took 10 minutes to shorten 1 lug! I guess I'll use these rounded lugs for a few more days and then get the lugs replaced to the correct ones.
The reason why I ask is because the shop that installed my wheels gave me lugs that were too long. I went to another shop to get them shortened but it took 10 minutes to shorten 1 lug! I guess I'll use these rounded lugs for a few more days and then get the lugs replaced to the correct ones.
MBWorld Fanatic!
Joined: Feb 2007
Posts: 1,938
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From: Madison WI
2003 SL55, 2010 C63
I had my OEM round shape bolts on my HRE and had some weird clicking sound. Felt like the wheels would fall off if I drive a little faster. I changed them to the proper shape ones and it's been fine since.
