Decided to have a go at giving the car a touchless wash using just Snowfoam, no separate wash.
3 weeks since it’s last wash but the roads here actually haven’t been too filthy.
Also proof that the wing vents must do something on the 4 series, even if it is just accumulate road grime and salt crystals!
Used a bit of G101 diluted 5:1 in water to help out with the wheels. Rest of the car was just foamed, AutoBrite Magifoam diluted 4:1.
Video of the whole shebang:
Mid wash pics:
Let it dwell for about 7 minutes whilst I grabbed a coffee, then rinsed it off (and missed a bit on the rear bumper