Prepping / Wash Bay Standard Operating Procedure

Wash Bay Process

Set up the vehicle for full access before washing.

Work in a consistent order around the vehicle to stay efficient.

---

Preparation

  • Pull the car into the wash bay. Open all doors, hood, trunk, and gas door.
  • Remove all floor mats (carpet and rubber).
  • Inspect the engine bay. Cover any sensitive electronics.
  • Vacuum leaves or debris from cowl and trunk jambs.

---

Degreasing & Pre-Clean

  • Using APC/degreaser, start from one corner and work around:
    • LR tire → trunk jamb → gas door → RR tire → RR door → RF door → engine/front grille → windshield → LF tire → LF door → LR door.
  • Spray each tire, inner fender well, jamb, and engine bay area.
  • Agitate with a soft bristle brush (tires, underhood, engine).
  • Apply wheel cleaner and lightly agitate (not looking for perfection yet).

---

Pressure Wash

  • Turn on the pressure washer. Follow the same path as above.
  • Rinse degreased areas, engine bay, and body.
  • With car wet, revisit wheels and perform more detailed cleaning.

---

Wash & Decon

  • If you have a helper, have them soap and wash the car while you address wheels.
  • Soap and scrub the vehicle thoroughly.
  • Optional Step 1 – Clay: Clay the paint and glass surfaces.
  • Rinse.
  • Optional Step 2 – Chemical Decon: Apply chemical decontamination product, scrub surfaces.
  • Rinse again.

---

Drying

  • Dry vehicle with clean microfiber towels.
  • Use compressed air or a blower to speed drying and remove water from crevices.

---

Floor Mats

  • Mats can be sprayed during Step 4 and rinsed during Step 7.
  • Hang to remove heavy water and allow to dry before reinstalling.
Sep 9, 2025

Not finding what you're looking for? Contact Us Directly