I haven't driven my old car much for 9 months and not at all for 6 months, and the rear window was missing, so it's not surprising that the dash and the vinyl parts of the doors were covered with mold.
Tried some orange cleaner, barely did anything.
Tried Mr. Clean Eraser, original forumla, worked great. "Magic Eraser Multi-Purpose Cleaning Pad "
Not perfect and some parts need a 2nd or 3rd going over, but very easy to use. Even the cracks** that are part of the pattern in the some parts of the vinyl get clean.
The leather steering wheel didn't do so well but even when everything was clean that was a problem. It seemed like the leather was gone in parts and I don't know what was underneath it.
**What's interesting is that on the Home Depot page, it says that the original formula is good for cracks, "Water-activated micro-scrubbers reach into the surface grooves", but for Extra Power Magic Erasers (pack of 8 instead of 4) it says on their webpage "It is non-abrasive. " It says it 3 TIMES. So I wondered if it would do cracks as well, but otoh, I thought it wouldn't scratch up the vinyl. Which one to buy?But when I got to the store, it didnt' say non-abrasive on the box even once.
So I bought the first one to see if it worked and it worked great. Probably going to need 4 pads total to do the moldy parts of the dash and one door, but I bought 8 more pads. I'll give the extras to the new buyer.