Choliya

Per my <a href="https://mbworld.org/forums/gl-class-x166/783334-overtightened-lug-bolts-bunch-headaches.html">previous post</a> I thought a rounded lug bolt (cap) was a problem but turned out to be a minor inconvenience. I have huge headaches now!

Went to my regular indy shop to swap out my winter tires and he broke my lock nut key! I'm sure it was worn out already but then talked me into trying a hammer and chisel to try to unlock it and made a bad situation infinitely worse. I am dreading even thinking of the possibilities now.

Any tips / suggestion on how to deal with this nightmare scenario would be greatly appreciated.

Yeffsy

I've never done it with a lug stud, but I would try an "easy out". I quick google search will show you what the tool looks like. I'd also spray some rust breaker on the threads and let it sit for a day.

Jeff

whoover

Like this.

chassis

As mentioned on the other thread you started, take it to a tire shop. They do this all the time.

If you want to do it yourself, try:

1. Beat a socket with a hammer onto the offending lug bolt or lock. The socket should be just small enough to not fit over the bolt without beating the heck out of it with a hammer. Then use the beaten socket to attempt removing the bolt.

2. Use an air chisel on the offending bolt.

Both suggestions risk damaging the wheel, be careful.

I would take it to a tire shop.