Is it ok to put universal wheel spacers on 1993 Mercedes 300E?

Keep the spacers small enough so that the wheel stays hubcentric. If not possible use a hubcentric spacer from H&R (I use these on my old 911 Porsche and they are excellent quality). No shimmy even on the track.

http://www.hrsprings.com/site/index.html

You will have to get wheel bolts that are longer with additional length equal to the spacer.

You might be able to use them, but it will depend on the specs of your wheel. The 124 chassis cars don't give you a lot of latitude when it comes to wheel fitment. Case in point; we purchased a set of wheels for my wife's 95 E320 wagon, size 17x7.5(maybe 8) with a 37mm offset. This SHOULD have been the proper size for the car, but, as in your case, they did not clear the calipers. She took the car back to the tire dealer, and they did the equivalent of adding spacers by changing the wheels to ones with a 32mm offset, but otherwise the same dimensionally. The did clear the calipers, but they also noticably set out of the wheel well and anything resembling a bump caused them to rub. While she had her heart set on that particular style, the only solution was by going with a different wheel. The new ones are 17x7.5 with a 36 mm offset. So basically this was a long way of saying, if possible, get wheels that will fit without the use of spacers. There's NOTHING like good quality PROPERLY fitted aftermarket wheels on a Benz.

It really isn't a great idea. You have the wrong wheel for your car. If you have to use spacers, as some of the answerers have said, make sure they fit flush and render the proper geometric mechanics for your car. If not you're just making things worse and will eventually have a car unsafe to drive. Not that touching calibers is all that great to begin with.

you can put them on but if you dont have the type with the added studs you will need to use longer wheel studs to accept the thickness of the spacer and the rim why do you want your wheels sticking out farther? it will increase your cornering stability but personally i dont like the looks of stock wheels sticking out past the stock location, and you can run into rubbing problems 2 inches is a pretty lot for stock wheel openings... you will more then likely rub the fenders when turning and also may rub the rear wheel on some bumps

Why did you even BUY wheels which don't match your cars pre-determined offset. A lot of tire specialists won't even TOUCH a car that has been jacked up with this set-up.

If you purchased with a CC, I would cancel the whole freaking deal. NOTHING is better than a stock wheel for a Mercedes Benz...

you can use then,but they are dangerous to have on a car,i have seen them break before causing the driver to loose control of the car.its rare that they do break,but it can happen,and has,so be careful if you use them,good luck with it.

the main thing to make sure of is they sit flush with the rotor via the hub of the rim, and torqued to proper specs.