A high percentage of vibration complaints are indeed due to tire/wheel problems, the most common being imbalance.

The first thing you need to check is to see that the wheels were balanced with weights both inboard AND outboard on the wheels. It is all too common for the kids at the tire stores to use weights ONLY on the inboard rim because they have been chewed out by customers for scratching their fancy wheels.

If you have MB wheels, use the MB clip on weights and they will not scratch the wheels if properly applied.

Using inboard weights only will guarantee imbalance that will result in vibration. If you don't want weights on the outer rim, a savvy wheel balancer can use tape weights for the outer plane by putting them just behind the spokes. Most of the newer balancer machines even have functions to aid in this approach.

If your wheels are indeed balanced with weights on both planes, the next step is to seek out a Hunter GSP 9700 wheel balance machine. This balancer not only balances, but also has a pressure wheel and analyzes the tire for stiff spots. All MB dealers have these machines, but they are also found in many other shops.

To find the 9700 near you simply go to: www.gsp9700.com and there is a locator on that site.

Good luck,