Wheel spacers are used for various reasons. For decoration, wheel spacers push the wheel out to flush(or past) the fender, achieving an aggressive look. compared with changing a new set of wheel,just adding wheel spacers are the most cost-effective and convenient way.
For function reasons, wheel spacers create proper clearance for passing the larger brake caliper, also they help mount bigger sizes of wheels. And the owner of this GLC 300 would like to use new aftermarket wheels, which have the wrong offset. Installing proper sizes of wheel spacers can correct the ET, improving handling performance. Moreover, hub-centric wheel spacers make a snug connection between wheel and axle hub, ensuring the hub carries the weight of the car instead of the studs or bolts, meaning no vibration.
Remember to measure the gap, use the ruler to measure from the inside of the straight edge to the inner fender lip. That means measuring the tire-fender clearance. This empty space will likely be your spacer size. You don't want to exceed the empty space because that will lead to the tire rubbing on the fender.
For function reasons, wheel spacers create proper clearance for passing the larger brake caliper, also they help mount bigger sizes of wheels. And the owner of this GLC 300 would like to use new aftermarket wheels, which have the wrong offset. Installing proper sizes of wheel spacers can correct the ET, improving handling performance. Moreover, hub-centric wheel spacers make a snug connection between wheel and axle hub, ensuring the hub carries the weight of the car instead of the studs or bolts, meaning no vibration.
Remember to measure the gap, use the ruler to measure from the inside of the straight edge to the inner fender lip. That means measuring the tire-fender clearance. This empty space will likely be your spacer size. You don't want to exceed the empty space because that will lead to the tire rubbing on the fender.