Wheels are the dirtiest part of any car. Brake dust is hot, metallic and bonds to the surface; tyres collect road grime and layers of old dressing. Cleaned properly, they transform how the whole car looks, a spotless car with brown wheels still looks unfinished.
Rule one: wheels first
Always clean wheels before the paintwork. Wheel cleaning splashes abrasive brake dust around, do it after washing the body and you'll be re-contaminating clean panels. And keep dedicated wheel tools: whatever touches your wheels should never touch your paint.
Step 1: Rinse and apply wheel cleaner
Rinse each wheel and arch to knock off loose dirt, then apply your wheel cleaner and give it a few minutes to work. A dedicated cleaner will dissolve what water can't touch.
Step 2: Scrub the tyres
Tyres need proper agitation. A stiff tyre scrubbing brush digs into the sidewall texture and strips out browning and old dressing, you'll see the foam turn brown as it lifts. Scrub until the foam runs white; dressing applied over dirty rubber goes patchy within days.
Step 3: Work the wheel faces and barrels
For spokes, calipers and behind badges, a finger mitt gives you glove-like control in the gaps a brush skates over. For heavily soiled faces and inner barrels, a drill brush on low speed makes short work of baked-on brake dust, the smallest head fits between spokes.
Step 4: Arches, then rinse
Wheel arches hold more mud than anywhere on the car. Rinse them out, a strong fan pattern does most of the work, then rinse the whole wheel thoroughly before moving to the next corner. Work one wheel at a time so cleaner never dries on the surface.
Step 5: Dress the tyres
Once the tyre is clean and dry, apply dressing for that deep, satin-black finish. On a properly scrubbed tyre it absorbs evenly and lasts weeks rather than days.
Do this once properly, and weekly maintenance becomes a two-minute job per corner, exactly how we keep our regular maintenance valet customers' wheels looking new.