ML320 can't remove wheels
 

Tried to remove the front wheels to change the brake pads, after removal of the bolts, the wheels will not budge, wacked them with rubber hammer, kicked with flat part of foot even tried to hammer a wedge into wheel and rotor. no deal. Is there something else I need to remove ? or are they rusted stuck. never had this problem before with other cars. need advice. thanks !

One hard tap with a sledge mallet will do it. I had alloys on a Z24 that did the same thing...ya wouldn't think alloys would bond like that to iron rotors...

If they are really stuck, and the hammer won't do it, you can try this:

Start the lug bolts for each wheel, take them in by hand until they just touch the wheel.

Back each lug bolt out 1/2 to 1 turn.

Let the vehicle down.

If these are only the front wheels, try turning the steering wheel from side to side a few times, this may do the trick. If not, or if you're dealing with the rear wheels also...

Drive the vehicle slowly back and forth, not far, just in and out of your garage, driveway, shop, or wherever. If you can go over the small bumps from street to driveway, all the better.

This will usually loosen up very stuck wheels. Obviously you don't want to get carried away and go out autocrossing with loose lug bolts, but a little back and forth and side to side won't hurt. the wheels center and ride on the center hub, and this is where corrosion forms. This also ensures that very little, if any, actual movement will occur when the wheels are broken free with the above method.

MV

When you put everything back together, sand all the aluminum corrosion off of both the wheel and the rotor. Clean off with alcohol. Smear some antisieze on the surface.

This will make it alot easier to get apart next time.

KISS Principle
 

Thanks BAVBMW
Its amazing how the "Keep it simple silly" prinnciple makes one shake your head in amazement like; why did I not think of that.
Cool post

Sure ya would.

Dissimilar metals in proximity is ripe for galvanic action.

Tried BAVBMW technique this past weekend, I must say this worked very well. Loosened lug nuts around 1 1/2 turns, turned steering wheel with quick back and forth motion and moved vehicle ~3 feet back and forth. Jacked vehicle up removed lug nuts wheel came off a lot easier with a slight tug. Repeated with other wheel. Sanded rust off inner surface and applied anti-sieze paste.:pleased: Wow, never had wheels stick like this before.:confused:

Stuck ML Wheels
 

If you live in "the Salt Belt" and drive in that stuff in the Winter, you will indubitably have some problems with wheels and other items that are exposed to it. Just one of the problems with the salt factor and one needs to consider that and possibly remove wheels in the Spring of the year and clean them; use anti-seize material -- which works well.

Ben Carter