Vacuum the upholstery to remove loose dirt. Shake the bottle well. Test the cleaner for colour fastness on an inconspicuous area first. Lightly moisten the stained or soiled area, then apply the foam evenly and work it in with a textile brush or damp sponge. Allow to dwell for 5–10 minutes. Wipe away the loosened dirt with a clean, moist microfibre cloth, rinsing the cloth in clear water as it becomes dirty. Repeat the process for very stubborn stains and always treat the complete section (e.g. whole seat) to avoid shade differences.