1) Assemble Your Kit + Notes 

Below is the total kit I used. As you can see, there aren't many tools required for this job at all. This cleaner is called AquaPur, however there are many, many different brands available in the shops. In USA the most common one is called Magic Eraser.

Ensure it looks like this, i.e. the bottom is white and the top part of the sponge is a different colour and also different material.

The steering wheel usually becomes shiny due to grease, oil and dirt from your hands after years of use. This cleaner works as a very light abrasive and removes the oily / greasy coating off the steering wheel.

As the sponge is a very light abrasive, some believe this process damages the leather finishing, but this can only happen if you clean it very often.

Method 2

If you are after a more long lasting solution, skip to step #7.
I say long lasting, as after cleaning your steering wheel (depending on the amount of driving you do), it may need cleaning very soon again.

2) How to Use the Cleaner 

Dip the sponge in a bowl of cold water and wring out all the water.

Softly rub the steering wheel a few times back and forth with the white (soft) side of the sponge. You will normally find the instructions on the box, which will tell you which side to use.

Next dry the water on the steering with the cloth and check if you have cleaned it enough.

Note: Do no over do it whilst rubbing / rub too hard, as you may ruin / destroy the finish of the leather.

Below you can see the difference it makes after cleaning it.

3) Half Cleaned Steering Wheel 

Half of the Steering Wheel cleaned. I am sure you can guess the old shiny side?

When the sponge gets / looks dirty, clean it in the bowl of water.

4) Dirty Water 

As you can see, the water is filthy. All that came of my shiny Steering Wheel.

5) Fully Cleaned Steering Wheel

This is the end result of cleaning the Steering Wheel.