Like cleaning the underside of your car, cleaning your wheel arches is essential when detailing your car. Because of spray from wheels, dirt deposits build up quickly in the arches and provides the perfect conditions for rust to form.
Cars normally either have plastic lined arches or metal arches with a sealant like the underside of your car. When they’re be lined with sealant, you need to inspect this for any damage as it’s essential to repair it as soon as possible to prevent rust.
I clean my arches every wash alternating between a “deep clean” once every 3 months and a “quick clean” every time I wash my car to keep it topped up.
The deep clean takes around 1-2 hours and will allow you to clean it thoroughly and spot any underlying issues. This will allow you also clean your wheels thoroughly and inspect your suspension at the same time.
Firstly remove the wheel and hose down the arch using a brush to remove any dirt. Once cleaned inspect the surrounding area for any rust.
It’s important to treat any rust as soon as possible, spray from wheels gives perfect conditions for it to spread.
All you need to do now is ensure that there is no dirt left in the wheel arches, wiping it down with a cloth to dry it off.
As a side note, it’s worth using some form of plastic restorer on any plastic inserts as they tend to leave an oily finish. This helps keep the arches clean as most of the water will roll of it, making it hard for dirt to cling onto the plastic.
This process is a lot quicker than a deep clean and can be incorporated into a regular wash.
First of all I’ll cover what’s needed when cleaning your arches:
Simply spray down the arches using a hose or pressure washer. Once this is done, give the arch a wipe down with a sponge or brush just to remove any build ups. Then dry the arch using a microfiber cloth to remove any moisture.