I used a spray on upholstery cleaner (Woolrich or Scotchguard, can’t recall). Spray on, gently work into fabric, wait a while, then dab with clean damp cloth. Rinse in clean water and repeat until all cleaner is gone, then dab dry with a towel.
Dab, don’t rub.
Mine had water stains around the A/C. Took a couple of treatments, but came out almost like new.
2014 Roadtrek 190 Popular
2008 Scamp 13