Stoneseller

I plan to finally mount a set of designated winter wheels & tires on my 450 this weekend. Have an impact, deep socket, torque wrench, & rolling 2.5 ton rolling floor jack.

Looking at the owners manual I see reference to the jacking point for the factory equipped (flimsy) screw jack. I have no intention of using that cheesy little device, but I'm wondering if the indicated jacking point is the right spot for my roll-under.

I'd prefer to lift only twice, doing two wheel locations per lift. Anyone know the best spot to place my jack?

TIA

Fourdiesel

The jacking point is correct (just behind each of the front wheels and in front of the rears) but you either must use two jacks or one jack and an adjustable stand or wood cribbing. Its usually less of a issue when changing to winter tires/wheels than when rotating tires. In the latter situation it's very handy to have all of one side off the ground at the same time.
I haven't tried it yet, but I've heard that, if you RAISE the car to max height, block up it at the jack points, then set it to lower (thereby raising the wheels up), you can get enough clearance to pull/change wheels. All at the same time if you want!

lkchris

You need this tool to use with your floor jack

http://www.reverselogic.us/ReverseLo...Pad_Tools.html

43221B

You don't need those. The GL has much stronger jack points than other MB models. You also don't have the issue of damaging the rocker panels or running boards with the arm on your floor jack like you do on other models because the GLs jack points are not as recessed and the vehicle doesn't sit as low to the ground. I have rotated the tires myself since new. I have the reverse logic jack points and they are worthless (although they could make great paperweights). Just center your jack stands on the jack points and you won't have any problems.

I use this floor jack and stand http://www.northerntool.com/shop/too...0846_200460846 to lift two points at a time but you should be fine lifting only one point if you are putting on snow tires/wheels.

The only thing that can catch you by surprise is the GL can/will "sit" on the floor jack after you lower it because the car will release all of the air from the suspension. At first you'll think you're screwed. All you have to do is start the car up and the suspension will re-inflate and you can remove the jack.

Stoneseller

Thanks to all for the pointers.
I think I'll skip the fancy pads lkchris has linked. I have an alternative that I always used on my X5, which works very well. The price & availability is much more attractive as well. Here is one site if anyone is interested:
http://www.google.com/products/catal...d=0CJABEPMCMAE

Turned upside down in the jack saddle it fits many vehicle models.
My jack looks pretty much the same as this one:
http://www.hyjacks.com/n_71232x.jpg

ObssedOne

I have changed the wheels on my GL a number of times at home in the garage. I used the same idea as the sanding block but I simply put a hockey puck on the floor jack pad and jacked it up at the jacking points.

BJ021

There ya go - us hockey players are the smartest athletes!

Stoneseller

And, with the best teeth